RBS 2308, RBS 2309, EBB-01 and EBB-06 User's Guide

P012350C 

Ericsson GSM System 

RBS 2308, RBS 2309, EBB-01 and EBB-06 

User’s Guide 

EN/LZT 720 0027 R3A

BINDER LABEL 

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H:\Project\Highscore\Klara dokument\R1B\RBS 2109\2109 binderlabel_portrait.doc 

Ericsson GSM 

System 

RBS 2308, RBS 2309, 

EBB-01 and EBB-06 


EN/LZT 720 0027 

R3A 

28 

38 

47 

54 

Fontsize 10 

Fontsize 14 

Fontsize 12 

Fontsize 10 

1 (1)

Doc nr: 2/001 59-EN/LZT 720 0027 Uen Rev C 

Ericsson GSM System EN/LZT 720 0027 R3A 

RBS 2308, RBS 2309, EBB-01 and EBB-06 User’s Guide

CAPTION LIST 

Document No. 

EN/LZT 720 0027 

RBS 2308, RBS 2309, EBB- 

01 and EBB-06 User’s Guide 

Date 

2005-01-14 

Rev 

B 

Introduction 

Personal Health and Safety Information 

System Safety Information 

Tools and Instruments 

Installation of RBS 

Antenna System Tests 

Site Installation Tests 

RBS Site Integration 

Maintenance 

Glossary 

EBB-01 Installation Instructions 

EBB-01 Maintenance Instructions 

EBB-06 Installation Instructions 

EBB-06 Maintenance Instructions 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14

RBS 2308, RBS 2309, EBB-01 and EBB-06 


E

Copyright 

© Ericsson 2005 — All Rights Reserved 

Disclaimer 

No part of this document may be reproduced in any form without the written 

permission of the copyright owner. 

The contents of this document are subject to revision without notice due to 

continued progress in methodology, design and manufacturing. Ericsson shall 

have no liability for any error or damage of any kind resulting from the use 

of this document. 

Trademark List 

EN/LZT 720 0027 Uen R3A 2005-01-12

Contents 

EN/LZT 720 0027 Uen R3A 2005-01-12 

RBS 2308, RBS 2309, EBB-01 and EBB-06 User’s Guide 

1 Introduction 1 

1.1 Product Overview 2 

1.2 Target Groups 3 

1.3 Installation and Integration Process Overview 4 

1.4 Radio Site Implementation Process 5 

1.5 RBS Library Overview 8 

1.6 Release History 8 

2 Personal Health and Safety Information 11 

2.1 Introduction 11 

2.2 Hazard Symbols and Admonitions 12 

2.3 General Safety Precautions 13 

2.4 Electric Shock Hazards 14 

2.5 Energy Hazards 15 

2.6 Fire Hazard 16 

2.7 Heat Hazards 17 

2.8 Mechanical Hazards 18 

2.9 Radio Frequency Exposure Hazards 19 

2.10 Laser Hazards 20 

2.11 Chemical Hazards 21 

2.12 Other Hazards 23 

3 System Safety Information 27 


3.2 Admonitions and Safety Symbols 28 

3.3 Batteries 29 

3.4 Electrical Installation 30 

3.5 Electrostatic Discharge 31 

3.6 Equipment Handling 32 

3.7 Ground Connection 33 

3.8 Lightning Protection 33 

4 Tools and Instruments 35 

4.1 Tools for Installation of RBS 2308 and RBS 2309 35


4.2 Equipment for Antenna System Tests 36 

4.3 Equipment for Site Installation Tests 37 

4.4 Equipment for RBS Site Integration 37 

4.5 Equipment for Maintenance 38 

4.6 Kit Specifications 38 

5 Installation of RBS 41 


5.2 Preconditions 41 

5.3 Torque Settings 42 

5.4 Installation Procedure 43 

6 Antenna System Tests 81 

6.1 Checking the Installation 83 

6.2 Calibrating the Antenna Tester 84 

6.3 Performing DTF Tests 87 

6.4 Naming a DTF Measurement 90 

6.5 Calculating the Feeder Attenuation 91 

6.6 Calculating the Feeder Delay 93 

6.7 Performing SWR Test 95 

6.8 Naming an SWR Measurement 97 

6.9 Performing Concluding Routines 98 

6.10 SWR ↔ Return Loss Conversion Table 101 

7 Site Installation Tests 103 


7.2 Inspecting Cable Connections 104 

7.3 Checking AC Mains and DC Power Supply 104 

7.4 Switching on RBS 105 

7.5 Testing Fan Unit 107 

7.6 Setting IDB Parameters 108 

7.7 Reading Fault Status 133 

7.8 Testing External Alarms 134 


8 RBS Site Integration 141 

8.1 Testing Transmission 142 

8.2 Bringing the RBS into Service 144 

8.3 Making Test Calls on the Air Interface 145 





9 Maintenance 155 



9.3 Fault Localisation Using OMT 156 

9.4 Troubleshooting Using the RBS Indicators 173 

9.5 HW Replacement 185 

10 Glossary 223



1 Introduction 


This User’s Guide consists of the chapters listed below. Each chapter is briefly 

summarised. 

Introduction 

This chapter. 


Contains personal health and safety information that applies when working 

with Ericsson system products. 


Contains system safety information that applies when working with Ericsson 

system products. 


Contains lists of all recommended tools and instruments. 

Installation of RBS 2308 and RBS 2309 

Describes activities for: 

• Installation of the mounting base 

• Connection of cables 

• Connection of external antenna 

• Mounting the radio cabinet on the mounting base 


Describes the site specific antenna tests that should be performed on site. 



Describes the site specific tests that should be performed on-site. 

1



Describes how to integrate an RBS site into a network. 

Maintenance 

Describes first line Maintenance. This means that swap repair is carried out 

on site and that only replaceable units are handled. 

Glossary 

Contains abbreviations and acronyms used in the text. 

1.1 Product Overview 

The RBS is a GSM EDGE micro base station for both indoor and outdoor micro 

cell applications. It is a small yet complete station, with transceivers, switching 

functions and transmission. 

The RBS can be mounted on a mast/pole as easily as it can be fitted to a wall. 

Figure 1 RBS Overview 

2 EN/LZT 720 0027 Uen R3A 2005-01-12


IXU Interface and Switching Unit 

MBU Mounting Base Unit 

MCB Multicasting Box 

RRU Remote Radio Unit 

RXBP RX Bandpass Filter 

TIM Transmission Interface Module 

External optional battery backup is possible, as well as the option of having 

integrated antennas within the base station. 

1.2 Target Groups 


This section describes the target group for this manual, which is all personnel 

involved in activities relating to the installation and integration of an RBS site. 

Chapters Introduction, Safety Instructions and Tools and Instruments 

used by all groups 

Cabinet Installation 




Fault Handling 

YES NO 

TEMSON/OFF 

* 

CLR 

1 2 3 

4 5 6 

7 8 9 

0 # 

Installation 

OMT 

Test and Integration 

Figure 2 Chapters Related to Specific Target Groups 

P008221B 

During the whole Radio Site Implementation (RSI) process and the product’s life 

cycle, the target groups require documents in addition to the above mentioned 

manuals to complete the work. 

3


Qualifications for Installation Personnel 

Ericsson recommends that installation personnel possess the following skills: 

• Technical college or equivalent education with an emphasis on electrical 

engineering 

• Familiarity with the equipment used during the installation process 

• Knowledge of antenna systems 

• Appropriate training and medical certificate for working at heights 

• Good understanding of technical English 

Qualifications for Test and Integration Personnel 

Ericsson recommends that testing and integration personnel possess the 

following skills: 

• Basic Ericsson RBS 2000 Operation and Maintenance knowledge. 

Personnel should be familiar with the tools and instruments recommended 

in the chapters Antenna System Tests, Site Installation Tests, and RBS 

Site Integration. 

• Basic GSM knowledge 

• Basic RBS 2000 knowledge 

• Good understanding of technical English 

1.3 Installation and Integration Process Overview 

This section describes the overall Installation and Integration process. This 

process covers the work that follows the Installation Engineering process: 

testing the antenna system, installing the cabinet, performing site installation 

tests, and integrating the site into the network. A process overview is shown 

below. 


P009519B 

Installation Engineering 


Cabinet Installation 



Figure 3 The Installation and Integration Process 

1.4 Radio Site Implementation Process 


This section describes the overall Radio Site Implementation process, of which 

the Installation and Integration process is a part. The Radio Site Implementation 

process covers the work from the initial stages of receiving an order, planning 

and designing the entire network, to installing the RBS sites and integrating 

them into the network. 

Contract is signed 

Radio Site 

Installation Engineering 


Network Design 

Civil Works 

Installation & Integration 

Site Acquisition 

Figure 4 The Radio Site Implementation Process 

For further information about the planning process, see: 

Acceptance (of site) 

P007657B 

5


Radio Site Installation 

Engineering Manual 

Network Planning Process 

EN/LZT 302 069 

The Network Planning process consists of the following activities: 

• Dimensioning of network 

• Dimensioning of equipment for radio, transmission, switching, operation 

and maintenance 

• Defining and ordering market adaptation products, for example programs 

for national signalling towards the public telephone network 

• Measurement of radio frequency and interference 

• Producing digital maps and data 

Site Acquisition 

The Site Acquisition process is performed in close cooperation with the Civil 

Works process and, to some extent, with the Engineering process. 

The Site Acquisition process consists of the following activities: 

• Searching for sites and obtaining a site appraisal 

• Outlining the site design and evaluating the cost 

• Negotiating and signing leasing contracts 

• Handling permits and arranging a handover to the Engineering personnel 

Civil Works 

The Civil Works process is performed in close cooperation with the Site 

Acquisition process and the Engineering process. 

The Civil Works process consists of the following activities: 

• Preparing a detailed civil works design of the site 

• Updating the costs for the site construction 

• Arranging the site construction 

• Performing a site inspection and handing over an as-built document to 

the Engineering personnel 


Engineering 


The Engineering process begins when the Site Acquisition and Civil Works 

processes are complete. 

The Engineering process consists of the following activities: 

• Measuring and collecting information about sites 

• Designing the antenna and radio configuration, and producing cable 

drawings 

• Making drawings showing the positions of the antenna and RBS equipment 

• Defining areas of responsibility between the purchaser and the contractor 

• Producing site-specific information in the Site Installation Documentation. 

For more information about the results from the site engineering process, see: 

Radio Site Installation 

Engineering Manual 

Installation and Integration 

EN/LZT 302 069 

The work involved in this process is performed by installation personnel, and 

test and integration personnel. 

Installation personnel are responsible for the following activities: 

• Installing the antenna system 

• Installing the RBS 

• Earthing the RBS 


• Connecting a power supply to the RBS 

• Connecting the antenna system to the RBS 

• Installing cable ladders and cable ducts 

• Installing battery backup 

• Installing PCM cables 

The test and integration personnel are responsible for the following activities: 

• Performing the tests specified in the contract and integrating the site 

• Troubleshooting if tests indicate a fault 

7


• Recording the test results in the Site Installation Documentation, which is 

returned to the engineering personnel 

1.5 RBS Library Overview 

For information on the RBS library and other manuals related to the RBS, see: 

1.6 Release History 

1.6.1 R2A to R3A 

RBS 2000 Library Overview LZN 302 73 

Except for editorial changes, such as the correction of spelling, grammar, and 

layout, this manual has been revised as follows: 

EBB-01 Maintenance and Installation Instructions and EBB-06 Maintenance 

and Installation Instructions have been added as appendices to the manual. 

See release history in each appendix. 


• Updated the product number of the OMT Kit 

• Updated the reference to the Hardware Reference Manual 

RBS Integration 

• Deleted a wrongly placed picture 

Installation of RBS 

• Updated the figure for the RBS installation process 


• Updated with the P-GSM 900 frequency 

• Added a new example for calculating the total feeder delay 

• Deleted an extra, wrongly placed test record 

Maintenance 

• Updated the step lists to grids 


1.6.2 R1A to R2A 


• Updated the references to the Hardware Reference Manual 

• Updated the DC voltage range 

• Updated the corrective actions for the external alarms 

• Updated the instructions for the TIM replacement 

• Updated the instructions for the replacement of the Y link cable 

• Deleted some of the screenshots 

RBS 2309 

Information about RBS 2309 has been added to the document. 


New safety chapter. 


New safety chapter. 

Installation of RBS 2308 

• Section Tightening Torques added 

• Section Installing the MBU on a Wall updated with a figure that shows 

connection of site earthing to the MBU 

• Section Installing the IXU (Master RBS Only) updated with a new figure for 

earthing of outer shield only 

• Updated figure for strapping cables using the appropriate cable tie anchor 

• Updated figure for installation of the top sunshield 


• Section Calculating Feeder Delay added 



• Updated figure for RRU and IXU interface panels 

9


1.6.3 R1A 

• Section Connecting OMT updated with text explaining what to do if an 

extended OMT cable is connected 

• Section Defining Transmission Interface E1, 120 updated with information 

about ports C and D as a multidrop pair 

• Section Reading Fault Status updated with information about what is 

displayed when an MO fault is selected 

• Test record for Stand-alone updated with a check for external alarms 

RBS 2308 Maintenance 

• Updated figures for RRU and IXU interface panels 

• Torque value added for mounting of the TIM 

• Updated figure for disconnecting the power cable from the RRU 

• New figure for removal of the fan unit 

Appendix: Fault List Micro 

New fault list including all alarms related to all micro cabinets. 

This is the first release of this manual. 



2 Personal Health and Safety Information 

2.1 Introduction 

This document presents the personal health and safety information that applies 

when working with Ericsson system products. The instructions included are 

mandatory to ensure personal safety while working with Ericsson system 

products. 

Note: Reduce the risk of accidents by studying all the information carefully 

before starting work. If questions arise regarding health and safety 

information, contact the supervisor or the local Ericsson company for 

clarification. 

For information on product safety for Ericsson system products, see: 

Local Regulations 

2.1.1 Target Group 

System Safety Information, 

Ericsson System Products 

124 46–2886 

Local regulations, first and foremost national regulations, override the 

information in this document. Where applicable local regulations are not 

available, the information herein prevails. 

Product Exclusion Indication 

The information in this document covers personal health and safety aspects 

of all Ericsson system products. As all the information does not apply to a 

specific product, the readers must familiarize themselves with the potential 

hazards indicated on the product they are working with to understand which 

document parts apply to their product. 

The target group for this health and safety information is personnel who work 

with Ericsson products. All personnel who work with engineering, installation, 

test, and operation and maintenance of Ericsson products must familiarize 

themselves with this information. 

2.1.2 Educational Requirements 


The safety instructions in the relevant manuals or documents require that 

persons performing work on Ericsson products have the necessary education, 

11


training and competence required to perform work correctly. For certain work, 

additional or special training may be required, for example authorization for 

Authorized Service Providers (ASP). ASP is an Ericsson certification procedure. 

A good understanding of technical English is required, or of the language that 

the information is presented in, to ensure that these and other instructions 

can be understood and complied with. 

2.2 Hazard Symbols and Admonitions 

This section presents the types of admonitions and hazard symbols used in all 

Ericsson documentation. There are three levels of personal health and safety 

admonitions that indicate risk to persons: danger, warning and caution. Hazard 

symbols are used to indicate these and to present various other hazards. 

The admonition levels for personal health and safety are presented in order 

of severity, with danger being the highest level, warning the intermediary 

and caution the lowest. When admonitions are encountered anywhere in a 

document, the information included should be read and any instructions should 

be followed. 

2.2.1 Personal Health and Safety Admonitions 

Personal health and safety admonitions are used to indicate hazardous 

activities and are normally preceded by the common hazard symbol shown in 

the figure below, or in specific cases by specialized symbols, see Section 2.2.2 

Special Hazard Symbols on page 13. 

P002643A 

Figure 5 Safety Hazard Symbol 

The hazard symbol is common for all three admonition levels. The three 

admonition levels are defined below: 

Danger! Indicates that there is an imminent hazard that is likely 

to result in death or serious injury. 

Note: Danger can be accompanied by other symbols 

depending on the country of operation. 

Warning! Indicates that there is a potential hazard that could 

result in death or injury. 

Caution! Indicates a hazard that could result in minor or 

moderate injury. 


2.2.2 Special Hazard Symbols 


This section presents special hazard symbols used to indicate the risk of 

chemical, electric shock, fire, heat, laser and Radio Frequency (RF) exposure 

hazards: 

P010387A 

Figure 6 Chemical Hazard Symbol 

P002645A 

Figure 7 Electrical Hazard Symbol 


Figure 8 Fire Hazard Symbol 


Figure 9 Heat Hazard Symbol 


Figure 10 Laser Hazard Symbol 

P002644A 

Figure 11 RF Exposure Hazard Symbol 

2.3 General Safety Precautions 


This section presents general safety precautions to ensure that persons are not 

injured when working with equipment. 

• Items of jewelry, for example rings, watches and necklaces should be 

removed as they can catch on moving parts, or when lifting equipment. 

• Pay attention to the hazard labels and other information labels on products. 

13


• Never remove or cover hazard symbols as this can endanger persons 

working with the product. 

• Only use the tools described, in the manner indicated, in instructions. 

2.4 Electric Shock Hazards 

This section provides information and instructions relating to equipment 

operating on voltage that entails an electric shock hazard. 

Note: This information only applies to products marked with the electric shock 

hazard symbol. 

The term Electric Shock Hazard is defined below: 

Electric Shock 

Hazard 

Hazard at voltage equal to or above 42.4 V peak or 

60 V DC. 

Danger! 

Electric shock risk. Avoid both direct and indirect contact with parts connected 

to mains power as this is likely to be fatal. Switch off the mains power before 

starting work. 

Danger! 

Improper electrical installation may cause fire or electric shock that is likely to 

be fatal. Only a qualified and authorized electrician is permitted to install or 

modify electrical installations. 

Note: Only qualified electricians are allowed to work directly with equipment 

that presents an electric shock hazard. 

Note: AC mains installation must be carried out according to local regulations. 

2.4.1 Safety Precautions for Working with Electrical Equipment 

The following precautions must be observed when working with electrical 

equipment: 

• The AC mains is switched off. 



• Equipment exposed to moisture is protected with a tent or other equipment. 

• Power cables are installed according to instructions. 

• Installed cables are always clearly marked with labels. 

• All personnel are familiar with and understand the warning signs on 

equipment. 

• Only tested electrical tools are used. 

• Holes are never drilled in equipment, or walls, without ensuring that there 

are no concealed cables. 

2.5 Energy Hazards 

2.5.1 Batteries 


This section provides information on how to avoid energy hazards. 

The term energy hazard is defined below: 

Energy Hazard Hazard at a stored energy level of 20 J or an available 

continuous power level of 240 VA. 

This section provides instructions and information on the proper handling 

of batteries. 

Note: Where Ericsson is not the supplier of battery equipment, see the 

manufacturer’s information on battery safety. 

Caution! 

Improper handling of batteries can result in the batteries short-circuiting, which 

can result in serious injury due to high energy levels. Exercise the necessary 

care when working with batteries. 

15


Lithium Batteries 

Warning! 

Switching poles when replacing lithium batteries can result in an explosion 

that can lead to injury. Always ensure that lithium batteries are connected to 

the right poles. 

2.5.2 Capacitors and Uninterruptible Power Systems 

This section provides information on how to avoid energy hazards in Capacitors 

and Uninterruptible Power Systems (UPS). 

Warning! 

High energy levels are present in this unit. Improper handling of the unit can 

lead to short circuiting that can result in serious injury. Exercise care when 

working with this unit. 

Note: Some capacitors and UPSs have energy levels above 240 VA. If this is 

the case this is indicated on the product with a voltage hazard. 

2.5.3 Safety Precautions for Avoiding Energy Hazards 

The following precautions must be observed when working with batteries and 

other units that present an energy hazard: 

• All metallic objects worn, such as wrist watches, rings, bracelets, and so 

on are removed. 

• Disconnect the charger power supply until the work is complete. 

• Only use insulated tools. 

2.6 Fire Hazard 

This section provides instructions and information on safety precautions for 

preventing fire. 



Warning! 

In the event of a fire, evacuate the building or equipment site and raise the fire 

alarm at the closest alarm point, or call the emergency number. Do not re-enter 

a burning building under any circumstances. 

Warning! 

Heater in operation. Do not block the heater vents or place combustible 

materials close to the unit, as this can cause a fire that can endanger life. 

2.6.1 Fire Precautions 

Note: When working with the installation or maintenance of equipment that 

involves interfering with the fire sectioning of a building, this should be 

carried out as quickly as possible. 

Fire can spread to neighboring rooms. When working on equipment cable 

ducts, channels and access holes might have to be opened, thereby interfering 

with the fire sectioning of the building. The instructions below have to be 

followed when work has been completed to restore the building’s fire sectioning: 

1. Close the cable ducts and fire doors (if applicable) as soon as possible. 

2. Seal cable ducts according to the regulations for the building. 

3. Minimize the amount of inflammable material. 

4. Remove empty packaging material from the equipment site. 

5. Check that there is a functioning powder or carbon dioxide fire extinguisher 

for electric apparatus at the equipment site. 

2.7 Heat Hazards 


This section describes how to avoid injury from hot surfaces or hot air in 

equipment. 

17


Caution! 

Parts inside this equipment attain high temperatures during normal operation, 

which can cause burns to the skin if touched without heat protective clothing. 

Always use heat protective clothing when working with equipment containing hot 

surfaces, or switch the equipment off and allow it to cool before starting work. 

Caution! 

A heater, producing hot air, is in use in this equipment. Direct contact with hot 

air can lead to burns. When the heater is in operation, avoid close contact 

with the heater air evacuation vent. 

2.8 Mechanical Hazards 

This section provides information on mechanical hazards in equipment 

containing sharp edges or rotating blades. 

Caution! 

Sharp metal edges may exist that can cause cuts to the skin or clothing. Wear 

protective gloves when handling this equipment. 

Caution! 

Rotating fan blades can cause injury to body parts that come into contact with 

the blades. Blades in fan units continue to rotate for a period of time, even after 

the fan has been switched off. Wait until fans have stopped rotating completely 

before starting work on or near fans. 


2.9 Radio Frequency Exposure Hazards 


This section provides instructions and information on potential hazards related 

to radio frequency (RF) electromagnetic field (EMF) exposure from fixed radio 

transmitters (as opposed to mobile phones). 

2.9.1 General RF Safety Information 

Caution! 

Excessive RF exposure can result in potentially adverse health effects. If it is 

suspected that RF exposure limits may be exceeded, ensure that transmitting 

antennas are switched off, or reduce output power whilst working with, or 

near, antennas. 

Note: RF exposure limits are specified by national and international health 

authorities in standards, regulations or guidelines. The limits include 

wide safety margins to protect from potentially harmful tissue heating. 

2.9.2 RF Safety for Installation and Maintenance Personnel 


It is important that all personnel working with the installation and maintenance 

of transmitting equipment and antennas have basic knowledge regarding RF 

safety. They must have been informed or trained to be observant of potential 

risks of RF exposure exceeding specified safety limits, and be aware of 

precautionary measures necessary for differing situations. 

Caution! 

Do not stand or work in front of an operational antenna, unless it has been 

verified or documented that RF exposure levels are within specified safety limits. 

19


Caution! 

Always be aware of other RF transmission antennas located close to the 

antenna you will be working with. If the RF exposure level is unknown, contact 

the equipment operator or ensure that measurements are done to verify that 

levels are below specified safety limits before starting work. 

Caution! 

Broken or disconnected RF cables can lead to exposure levels reaching, or 

exceeding, specified safety limits. Repair or reconnect cables before starting 

work. 

Note: Working outside of the main transmission direction of ordinarily 

configured antennas is in most situations possible, since the RF 

exposure does not normally reach specified safety limits in these 

directions. 

2.10 Laser Hazards 

2.10.1 Class 1 Laser 

2.10.2 Class 3 Laser 

This section provides information on working with products that have devices 

that communicate through optical fibres using laser. 

Note: This information only applies to products marked with the laser hazard 

symbol, stating the class of laser in use. 

This section provides information on working with equipment containing Class 

1 laser. 

Products containing a Class 1 laser, according to IEC/EN 60825, are safe 

to use and therefore have no requirements for cautions or warnings during 

operation or maintenance procedures. 

This section provides information on working with equipment containing Class 

3 laser. 



Danger! 

Never look directly into the end of a fiber optic cable, or other laser source. 

Equipment that transmits laser light can cause permanent eye damage. Switch 

off the laser before starting work on laser equipment. 

Safety Precautions for Working with Class 3 Laser 

The following precautions must be observed when working with products 

containing a Class 3 laser hazard symbol: 

• Never look into the light emitting end of a functioning optical fibre. 

• Switch off units producing the laser signal before disconnecting an optical 

fibre. 

2.11 Chemical Hazards 

This section provides information on chemical hazards that can be present 

in products. 

2.11.1 Beryllium Oxide Hazard 


This section provides information on Beryllium Oxide (BeO). BeO is a restricted 

substance that is contained in certain components in some Ericsson products. 

If a product contains BeO, this is clearly marked on the unit containing BeO. 

The BeO hazard symbol is shown in the figure below. 


Figure 12 BeO Hazard Symbol 

Note: This information only applies to products marked with the BeO symbol. 

21


Danger! 

This product contains Beryllium Oxide (BeO), which can cause injury to skin or 

mucous membranes severe enough to endanger life or cause permanent injury. 

BeO dust is created by chafing, filing, or breakage and is extremely dangerous 

if inhaled, even for only a few seconds. Particles penetrating the skin through 

wounds or abrasions are liable to cause chronic ulcerations. Do not handle 

components containing BeO without protection. 

Symptoms of BeO Poisoning 

Symptoms of BeO poisoning are respiratory distress, cyanosis (grey-blue 

discoloration of the skin and mucous membranes), or both. These symptoms 

may develop within a week, or after a period of several years. 

Safety Precautions for Working with Components Containing BeO 

The following precautions must be observed when working with components 

containing BeO: 

• Do not carry loose components in pockets, bags, or containers, or tamper 

with them in any way that could cause breakage or disintegration. 

• Do not apply excessive heat during soldering. 

• Do not break open components for inspection. 

• Store components in their original packaging and do not mix them with 

other components. 

• Ensure that components do not become mechanically damaged. 

• Use care when replacing defective components. 

• Do not blow on exposed surfaces due to the danger of BeO dust. 

• In case of accident, or if you feel unwell, seek medical advice immediately 

and show the label where possible. 

2.11.2 Battery Acid Hazard 

This section provides information on chemical hazards related to lead-acid 

batteries. 



Caution! 

Excessive heat can cause battery casing to soften and warp, potentially allowing 

acid to escape. In contact with the skin, acid can cause injury, and if breathed 

in, can affect the airways. Use protective equipment when replacing batteries. 

Caution! 

Batteries can leak electrolyte if improperly handled. Electrolyte in contact with 

skin or eyes can cause injury. In the event of electrolyte injuries, rinse the 

affected area with water and seek medical attention immediately. Use protective 

equipment when replacing batteries. 

Safety Precautions for Working with Lead-acid Batteries 

The following precautions must be observed when working with lead-acid 

batteries: 

• Eye wash facilities, and protective gloves or aprons are available. 

2.11.3 Gas Explosion Hazard 

Open-cell lead acid batteries can give off gases that in the event of a fire 

can cause an explosion that is likely to be fatal. All battery areas must be 

adequately ventilated and protected from fire. 

Danger! 

Do not use open-cell lead acid batteries. Open-cell lead acid batteries give off 

hazardous gases that, if ignited, can cause an explosion that is likely to be fatal. 

2.12 Other Hazards 


This section includes safety instructions and rules for the following hazards: 

• Handling Heavy Goods 

23


• Working at Height 

2.12.1 Handling Heavy Goods 

This section provides instructions and rules for handling heavy goods. 

Note: Follow local regulations for safety clothing and safety equipment for 

hoisting and moving goods. 

Falling Objects 

Warning! 

Risk for falling objects, work at height in progress. Falling objects can cause 

serious injury or even be fatal. Always wear a helmet and avoid standing in 

the danger area. 

Overloading 

Warning! 

Overloading, or other wrong use of lifting devices, can cause serious injury to 

anyone hit by falling equipment. Do not create an angle exceeding 90 between 

lifting straps as this increases the strain on them and can cause them to snap. 

Caution! 

The equipment is heavy. Lifting the equipment without the aid of a lifting device 

can cause injury. 


Unsecured Equipment 


Caution! 

Tip risk! Unsecured equipment can tip over if not secured properly, causing 

injury to personnel. Secure products with a high center of gravity as soon as 

possible to avoid accidents. 

2.12.2 Working at Height 


This section provides information about working at height. 

For information on climbing instructions for working at height, see: 

Safe Climbing LZY 213 715/02 

Safety Precautions for Working at Height 

The following precautions must be observed when working at height: 

• Personnel have the appropriate training and medical certificate. 

• A full-body safety harness and safety helmet are available. 

• Adequate protective clothing, essential in cold and wet weather, is available. 

• All lifting devices are tested and approved, and ready for use. 

• All personnel in the area are wearing helmets. 

25



3 System Safety Information 



This document presents the system used for presenting system safety 

information for Ericsson products. The instructions included are mandatory to 

ensure product safety while working with Ericsson products. 

Local regulations must be taken into consideration. The system safety 

information in this document is in addition to local regulations. 

Note: Reduce the risk of accidents by studying all the instructions carefully 

before starting work. If questions arise regarding the safety instructions, 

contact the supervisor or the local Ericsson company for clarification. 

For information on personal health and safety for Ericsson system products, 

see: 

Local Regulations 



Personal Health and Safety 

Information, Ericsson System 

Products 

124 46–2885 

Local regulations, first and foremost national regulations, override the 

information in this document. Where applicable local regulations are not 

available, the information herein prevails. 

Product Exclusion Indication 

The information in this document covers system safety information for all 

Ericsson system products. As all the information does not apply to a specific 

product, the readers must familiarize themselves with the potential hazards 

indicated on the product they are working with to understand which document 

parts apply to their product. 

The target group for this system safety information is personnel who work 

with Ericsson products. All personnel who work with engineering, installation, 

test, and operation and maintenance of Ericsson products must familiarize 

themselves with this information. 

27


3.1.2 Educational Requirements 

The product safety instructions in the relevant manuals or documents require 

that persons performing work on Ericsson products have the necessary 

education, training and competence required to perform work correctly. For 

certain work, additional or special training may be required, for example 

authorization for Authorized Service Providers (ASP). ASP is an Ericsson 

certification procedure. 

A good understanding of technical English is required, or of the language 

that the information is presented in, to ensure that these instructions can be 

understood and complied with. 

3.2 Admonitions and Safety Symbols 

This section presents the types of admonitions and safety symbols used in all 

documents for Ericsson system products. There are two types of system safety 

admonitions that indicate risk to products: Do! and Stop!. When admonitions 

are encountered anywhere in a document, the information included should be 

read and any instructions should be followed. 

The figures below show the symbols used to indicate product safety 

admonitions: 

Figure 13 Do Safety Symbol 

Figure 14 Stop Safety Symbol 

The terms Do! and Stop! are defined below: 

Do! Indicates an action that must be performed to prevent 

equipment damage, software corruption, data loss or 

service interruption. 

Stop! Indicates that action must be avoided to protect 

equipment, software, data or service. 

The term ‘‘Note’’ is used to present important information that might otherwise 

be overlooked. 

3.2.1 Special Hazard Symbols 

This section presents special hazard symbols used to indicate the risk of 

Electrostatic Discharge (ESD): 


3.3 Batteries 

P002646A 

Figure 15 Electrostatic Discharge Hazard Symbol 


This section provides information on damage that can be caused to products 

containing batteries that are damaged. 

3.3.1 Overheated Batteries 

Caution! 

Do! Check batteries for signs of overheating. The casing surrounding 

overheated batteries can be soft and warped. Replace damaged batteries 

according to instructions. 

If it is suspected that batteries are overheated, check the following: 

• The internal temperature of the equipment is below +60 C (140 F). 

• Batteries have not leaked. 

Corrective Actions 

1. Replace overheated batteries. 

2. Treat leakages from batteries as described in Section 3.3.2 Treating 

Hazardous Waste from Leaks on page 29. 

3.3.2 Treating Hazardous Waste from Leaks 


Caution! 

Do! Check batteries for acid leakage. Acid can corrode the product. Replace 

leaking batteries according to instructions. 

29


In case of spillage of hazardous substances, there should always be sufficient 

absorbers or neutralizing materials available on site. There is a danger of 

spillage occurring when installing, removing, replacing or servicing batteries. 

The absorbers and neutralizing materials must be suitable for the hazardous 

substances involved. Typical neutralizing agents are shown inTable 1 on page 

30. 

Table 1 Typical Neutralizers 

Typical Neutralizers Chemical Compound 

Baking soda (bicarbonate) NaHCO 3 

Sal soda Na 2 CO 3 IOH 2 O 

Soda ash Na 2 CO 3 

Note: Absorbers and neutralizing products will vary, depending on the country 

and battery manufacturer. Consult the battery manufacturer for specific 

details of absorbers and neutralizing materials. 

3.4 Electrical Installation 

This section provides information on ensuring that AC and DC powered 

products are not damaged due to improper installation. 

Caution! 

Stop! Do not install or modify AC or DC powered equipment unless you are a 

qualified and authorized electrician. Improper installation work can seriously 

damage the equipment. 

3.4.1 Safety Precautions for Working with Electrical Installations 

The following precautions must be observed when working with electrical 

installations: 

1. Ensure that approved circuit breakers or fuses are installed. 

2. Ensure that the cables used have a sufficient cross-sectional area in 

accordance with product requirements and local laws and regulations. 

3. Ensure that conductors are connected according to the connection diagram. 

4. Label the cables correctly. 

5. Check the installation work upon completion. 


3.5 Electrostatic Discharge 



This section provides information and instructions on Electrostatic Discharge 

(ESD) product safety. ESD is defined below. 

ESD A static electric charge accumulates when a body rubs 

against clothes, slides against a chair, when shoes rub 

against a floor, or when ordinary plastics are handled, 

and so on. The electrostatic charge can remain for a 

considerable length of time and is discharged when the 

body comes into contact with conductive material. 

An ESD wrist strap must be used when working with ESD sensitive components, 

even in equipment rooms fitted with ESD protective floor covering. Although 

ESD floor covering reduces the risk of ESD, if the wrong type of shoes are 

used, or if the person is already charged when they enter the room, the floor 

covering in itself does not protect from this, and therefore an ESD wrist strap 

must be used. 

Figure 16 ESD wrist strap 

01_0250A 

The ESD wrist strap contains a resistor with resistance greater than 1 M in the 

cable to protect the operator. The resistance value is low enough to discharge 

the electrostatic voltage. The ESD wrist strap must be connected to ground. 

Instructions for ESD Wrist Strap Use 

1. Place the ESD wrist strap around your wrist and insert the connector at the 

other end to the ground (earth) terminal on the equipment. 

2. Always use the wrist strap when and where its use is required. 

Note: Test the ESD wrist strap regularly. 

31


3.5.1 Handling Printed Board Assemblies and IC Components 

Note: Treating all components as if they are ESD sensitive, whether they 

have IC components or not, reduces the risk for ESD and significantly 

reduces the operating time between failure. 

Caution! 

Stop! This product contains components sensitive to ESD. Use an approved 

ESD wrist strap, connected to the product grounding point, to avoid damaging 

these components. 

Caution! 

Do! Always use an approved ESD wrist strap when working with sensitive 

equipment. Damage to components mounted on printed board assemblies can 

occur if an ESD wrist strap is not used. 

3.5.2 Storing and Transporting Printed Board Assemblies and IC 

Components 

When storing or transporting printed board assemblies or IC components, 

ensure one of the following: 

• The item is stored or transported in its original packaging, or in other 

anti-ESD material. 

• The item is stored or transported in a conductive material, or a special IC 

carrier that either short-circuits or insulates all leads of the components. 

3.6 Equipment Handling 

This section provides information on how to avoid damage to products when 

handling them. 


Do! 


Caution! 

Tip risk! This equipment has a high center of gravity without all units installed. 

Secure the equipment before opening the door. 

Caution! 

Stop! Never lift a unit by the cables as this can damage the equipment. 

3.7 Ground Connection 

This section provides information on product grounding (earthing) safety. 

Note: The terms “grounding” and “earthing” are synonyms. 

Caution! 

Do! Products not connected to ground risk being damaged by overvoltage or 

overcurrent. Always connect products to ground according to instructions. 

3.8 Lightning Protection 


This section provides information on protecting products from damage due to 

lightning where a lightning protection system is available. 

Caution! 

Do! Connect products to the lightning protection system to protect the 

equipment from transient surges. 

33



4 Tools and Instruments 


This section contains lists of all tools and instruments recommended for the 

complete installation of the RBS 2308 and RBS 2309. 

4.1 Tools for Installation of RBS 2308 and RBS 2309 

Table 2 Basic Tools for Installation 

Description Specification 

Adjustable spanner 10" – 

Drilling machine – 

Knife (1) 

Measuring tape (1) 

Pen – 

Screwdrivers (1) 

– 

6 m 

Torx: T20 and T30 

Screwdrivers 3 mm and 5.5 mm 

Side cutting pliers (1) 

Snip nose pliers – 

Socket set (1) 

Spirit level (1) 

– 

10 – 19 mm 

Torque wrench 5 – 25 Nm 

U wrenches (1) 

Wire stripper (1) 

– 

13 mm, 16 mm, 17 mm, 20 mm and 

22 mm 

0.2 – 6 mm 2 

(1) Included in Personal Tool Set, Product Number LTT 601 135/1. 

Table 3 Special Tools for Installation 

4.1.1 Documentation 


Description Specification Product Number 

Crimping tool set for grounding LTT 601 86 

Torque wrench for N connector LSS 103 25/1 

Torque wrench for TNC connector LTT 601 93 

The following documents are required for the installation procedure: 

35


• Completed and approved record prepared during site preparation 

• Site Installation Documentation (prepared by the Installation Engineering 

department) 

Standard Site Material 

Installation Instructions 

4.2 Equipment for Antenna System Tests 

Table 4 Test Equipment for Antenna System Tests 

EN/LZT 720 0014 


Antenna Tester 

Set 

Anritsu Site Master 

S331C 

LPK 102 101/8 

The Anritsu Site Master S331C is recommended for the Antenna System Tests, 

but the following Site Master models can still be used if available: S251A/B and 

S331A/B for GSM 800/900/1800/1900 antenna systems. 


The following documents are required for the antenna system tests: 

• Site Installation Documentation 

• A test record 

For more detailed information on the Anritsu Site Master, see: 

Anritsu Site Master User’s 

Guide (included in Antenna 

Tester Set) 

Note: Instructions for Site Master models S251A/B and S331A/B for GSM 

800/900/1800/1900 antenna systems are not included in this document. 

When using any of these models ensure that all necessary accessories 

are included. See: 

Standard Tools and Equipment 

Catalogue 

LZT 720 0013 


4.3 Equipment for Site Installation Tests 

Table 5 Test Equipment for Site Installation Tests 



Fluke 79 III Multimeter LPK 102 024/3 

OMT Kit OMT Kit and SW cable NTM 201 2289/5 

Torx T20 (1) 

Torx screwdriver – 

(1) Included in Personal Tool Set, product number LTT 601 135/1. 


The following documents are required for the site installation tests: 

• A completed test record from antenna system tests 

• A test record for site installation tests 

OMT User’s Manual (included 

in OMT Kit ) 

4.4 Equipment for RBS Site Integration 

Table 6 Test Equipment for RBS Site Integration 

EN/LZN 720 0001 


Loop forward/ 

backward board 



Transmission test board LPY 107 757/1 

TEMS Kit GSM 800/1900 FAB 801 2524 

TEMS Kit GSM 900/1800/1900 FAB 801 2523 

The following document is required for the RBS site integration: 

TEMS Investigation GSM 

Manual (included in TEMS Kit) 

LZT 108 2684 

37


4.5 Equipment for Maintenance 

Table 7 Basic Tools for Maintenance 

Description Specification 

Adjustable spanner 10" – 

Knife (1) 

Screwdrivers (1) 

– 

Torx: T20 and T30 

Screwdrivers 3 mm and 5.5 mm 

Side cutting pliers (1) 

Snip nose pliers – 

Socket set (1) 

Torque wrench (1) 

U wrenches (1) 

Wire stripper (1) 

– 

– 

5 – 25 Nm 

13 mm, 16 mm and 17 mm, 20 mm 

and 22 mm 

0.2 – 6 mm 2 

(1) Included in Personal Tool Kit, product number LTT 601 135/1. 

Table 8 Special Tools for Maintenance 



Fluke 79 III Multimeter LPK 102 024/3 

OMT Kit – NTM 201 2289/5 

Torque wrench for N connectors LSS 103 25/1 

Torque wrench for TNC connectors LTT 601 93 

The following documents are required for the maintenance work: 

4.6 Kit Specifications 

OMT User’s Manual (included 

in OMT Kit) 

RBS 2308, RBS 2309, RBS 

2109, EBB-01 and EBB-06 

Hardware Reference Manual 

For a specification of all required kits, see: 

EN/LZN 720 0001 

EN/LZT 720 0058 




Catalogue 



39



5 Installation of RBS 



This document describes how to install the RBS 2308 and RBS 2309. 

Target Group 

The target group for this instruction is personnel involved in the installation of 

an RBS. 

5.2 Preconditions 

This section provides preconditions that must be met before starting the 

installation work. 

Note: Specific preconditions exist for wall and pole mounting. 

Documentation 

This section presents additional documents required for the installation 

procedure. 

Ensure that the following documents are available: 


• Site Installation Documentation (prepared by the Installation Engineering 

department) 

General Preconditions 


Standard Site Material Installation Instructions EN/LZT 720 0014 

Before starting site work, ensure the following: 

• Site access permission received 

• Ordered RBS, equipment, specified tools and other necessary facilities 

have been delivered 

• Site power is available 

• Site Grounding Point is available 

41


Note: The terms earthing and grounding are synonymous. 

• Transmission line from the BSC is available 

• During outdoor installation, protection for the RBS is available in case of 

bad weather 

Note: After installation, if the surrounding temperature changes between hot 

and cold, then to avoid humidity damage the RBS must not be left 

without power for more than 48 hours. 

To switch on the RBS, see Chapter Site Installation Tests: 

If any of the above preconditions cannot be complied with, then contact the site 

supervisor or person responsible for the activity that has been missed. 

Additional Preconditions for Wall-Mounted RBS 

Before installing the RBS on a wall, ensure that the following preconditions 

are met: 

• The type of fasteners are suitable for the kind of wall material on which 

the RBS is to be mounted 

• The contact surfaces on the Mounting Base Unit (MBU) are supported by 

the wall. If not, then a wall bracket is required 


supervisor or person responsible for activity that has been missed. 

Additional Preconditions for Pole-Mounted RBS 

Before installing the RBS on a pole, ensure that the following preconditions 

are met: 

• The pole must have the required diameter 60 – 114 mm 

• A wall bracket is available 

• A mast fixture set is available 


supervisor or person responsible for activity that has been missed. 

5.3 Torque Settings 

This section presents the recommended torque values to be used when 

installing the RBS. 

The tools needed for the installation are found in Chapter Tools and Instruments. 


Table 9 Recommended Torque 

Dimension 

Torque 

Ncm Nm lbf-in lbf-ft 

M3 110 +/- 7 – 9.7 +/- 0.6 – – 


Notes 

M3 80 +/- 7 – 7.1 +/- 0.6 – Reduced torque for 

plastic covers 

M4 260+/- 15 – 23.1 +/- 

1.3 

M4 170 +/- 15 – 15.1 +/- 

1.3 

– – 

M6 – 8.8 +/- 0.5 – 6.5 +/- 0.4 – 

M8 – 21 +/- 1.3 – 15.5 +/- 1 – 

M10 – 41 +/- 2.5 – 30.2 +/- 

1.8 

5.4 Installation Procedure 


– Reduced torque for 

captive screws 

This section describes the installation procedure for the RBS. 

– 

43


Figure 17 The RBS Installation Process 


5.4.1 Unpacking RBS 


Unpack the RBS on-site. To avoid damage, the RBS should not be unpacked 

elsewhere and then transported to site. 

Caution! 




In order to avoid damage to components due to electrostatic discharges during 

unpacking, personnel must not come in contact with the connectors of the RBS. 

Ensure that the correct material has been delivered. If the material is damaged, 

complain immediately to the supervisor or the transport company. 

5.4.2 Installing the Wall Bracket 


Note: This section is only applicable for walls with very rough surfaces or 

when the RBS is to be mounted on a pole. 

This section describes how to install the wall bracket. 

The wall bracket is for use as a complement to the mounting interface of the 

Mounting Base Unit (MBU). Typical applications are rough surfaces and other 

conditions where the mounting interface for the MBU is not flat. The plate must 

also be used if the RBS is to be installed on a pole. See applicable section 

below. 

45


5.4.2.1 Installing the Wall Bracket on a Wall (Alternative) 

1. Place the drilling template in the position where the RBS is to be 

located. 

2. Use a spirit level to check that the drilling template is horizontal. 

3. Mark the position of the holes to 

be drilled. 

Note: The wall bracket must not 

be used as a drilling template, 

to avoid damaging the rust 

protection surface. 

4. Remove the template and drill the holes for the fasteners. 

5. Install the wall bracket and 

secure it in position with all the 

screws provided. 

UP 

DRILL TEMPLATE FOR WALL BRACKET 

6. Loosen the four nuts, on which the MBU is to be hung, until only a few 

threads remain exposed. 

5.4.2.2 Installing the Wall Bracket on a Pole (Alternative) 

1. Choose the appropriate holes. See Figure below. 

46 EN/LZT 720 0027 Uen R3A 2005-01-12 

Recomended holes 

Alternate holes 

UP 

P010150B 

P010151A


B 

A 

A 

UP 

Figure 18 Installation Alternatives 

A Holes used for vertical poles 

B 


A B 

B Holes used for horizontal poles 

P010152A 

2. Ensure that the washers are mounted correctly and attach the two clamps 

with the screws and washers. See Figure below. 

Note: Ensure that the recess is attached in the correct direction. 

Figure 19 Fastening Clamps to the Wall Bracket 

UP 

Recess 

3. Position the wall bracket on the pole and mount the clamps, tightening 

the screws alternately to avoid bending them. Ensure that the washers 

are mounted correctly. 


47


Recess 

Figure 20 Installing the Wall Bracket on the Pole 

5.4.3 Installing the MBU 


This section describes how to install the Mounting Base Unit (MBU) on a wall or 

wall bracket. 

5.4.3.1 Installing the MBU on a Wall 

1. Place the drilling template in the position where the RBS is to be 

situated. 


3. Mark the position of the 

applicable holes to be drilled. 

Note: To avoid damaging the 

rust protection surface, the MBU 

must not be used as a drilling 

template. 


4. Remove the template and drill holes for the fasteners most suitable 

for the wall material. 

5. Insert the fasteners and tighten them, remembering to leave enough 

threads protruding to hang the MBU on. 


UP 



P010234B


6. Hang the MBU on the bolts, 

applying just enough downward 

pressure to ensure that the 

screws fit in the keyholes. 

7. Tighten the four bolts. 

8. Connect site earthing to the 

MBU. 

Note: In configurations with 

more than one RRU and a 2-wire 

DC Supply, an extra earthing 

cable must be connected 

between the RBSs. 


8 - 9 mm 



49


5.4.3.2 Installing the MBU on a Wall Bracket 

1. Install the MBU on the four 

screws situated on the wall 

bracket. Ensure that the 

fastening screws are properly 

fitted in the key holes. 

2. Use a spirit level to check that the MBU is positioned vertically. 

3. If the MBU is not in a vertical 

position the then inclination can 

be corrected by adjusting the 

four distance nuts on the wall 

bracket. To do this, the MBU 

must be removed. Leave the 

locking nuts on the fastening 

screws. 

Note: Do not loosen the inner 

nuts. The inner nuts secure 

the fastening screws to the wall 

bracket. 

Locking Nut 

Fastening screws 

Distance Nut 

Inner Nut 




4. When the wall bracket is 

correctly adjusted, put back the 

MBU and tighten the four locking 

nuts. 

5. Connect site earthing to the 

MBU. 

5.4.4 Connecting Power 


Note: In configurations with 

more than one RRU and a 2-wire 

DC Supply, an extra earthing 

cable must be connected 

between the RBSs. 


8 - 9 mm 

This section describes how to connect the power cable(s) to the RBS. The 

section includes instructions for both AC and DC cables. 

Danger! 




Danger! 





51


Note: Protective Earth must be connected to the earth terminal when 

connecting power supply. 

The Protective Earth terminal is located in the MBU, indicated by the earth 

symbol, see the Figure below. 

Figure 21 Protective Earth 

Note: Protective Earth connection is essential. 

1. Remove the MBU cover from the MBU. 

2. Cut the cable to the appropriate length. 

3. Remove the cable insulation and 

strip the conductors. 


P010308A

4. Mount all cable inlet parts. 

5. Route the cable into the inlet 

and tighten the cable gland. 

5.4.4.1 Connecting AC Mains 



This section describes how to connect AC Mains cable (if applicable). 

1. Ensure that the site power is turned off. 

2. Connect the AC cable to the 

dedicated terminals. 

RRU 

1 

0 

AC 

1 

DC 

1 

0 0 




53


3. Ensure that the protective earth 

is properly connected. 

L L 

L = Line 

PE = Protective Earth 

4. If DC is not to be connected, put back the MBU cover onto the MBU. 

5.4.4.2 Connecting DC Supply 

This section describes how to connect the DC supply cable (if applicable). 


2. Connect the DC cable to the 

dedicated terminals. If 2-wire is 

used, set the ground selector to 

2-W. 



2-W 

PE 

PE 

48 V 

48 V_RTN 



3. If 3-wire is used, set the ground 

selector to 3-W. 



4. Ensure that the protective earth is properly connected. 

5. Put back the MBU cover. 

5.4.5 Replacing the Flash Card (If Applicable) 


3-W 

PE 

48 V 

48 V_RTN 

This section describes how to replace the existing flash card in the IXU. This is 

done only if a flash card, preloaded with site specific data, is provided. 

For information about preloading the flash card, see Chapter Maintenance. 

P010510B 

55


1. Remove the cover. Remove the 

existing flash card by pulling up 

the adjacent black plastic lever 

and then pushing it down to eject 

the card. 

2. Insert the new flash card, push 

it in, and reset the release lever 

(ensuring that the card is in 

position). 

3. Put back the cover. 

5.4.6 Installing the IXU 

Flash 

Card 

This section describes how to install the Interface and Switching Unit (IXU) 

on the MBU. 

Note: This section is valid only for the master RBS. IXU is not used in 

extension RBSs. 





1. Hook the IXU onto the MBU, and 

secure it with the two screws 

under the MBU. 

2. Connect the IXU AC/DC cable. 


3. Loosen the eight screws on the IXU and open the cover. 

4. Connect the Y link cable to the 

applicable connection port on 

the IXU, see Table below. 

Y link Y link Y link 

1-4 5-8 9-12 

Y link Y link Y link 

1-4 5-8 9-12 




57


Note: Dummy plugs must be inserted in the unused cable inlets. 

Table 10 Y link Connection Port 

RBS Connection Port 

RRU 1 Y link 1 – 4 



Connecting External Cables 

This section describes how to connect different external equipment, for example 

MINI LINK or transmission, see Figure below. 

Note: To simplify the cable connections, the connection frame on the IXU 

can be removed. 

EXT.ALARM 1-4 -48V 

LINK 

Figure 22 Connection Ports on the IXU 

PORT A PORT C PORT B PORT D 




1. Remove the connection frame 

from the IXU. 

2. Remove the cable gland parts 

and remove the sealing insert. 

Route the cable through the 

cable gland parts and strip the 

cable insulation. Cut the cable 

screen according to the figure. 

3. Strip the conductors and fold 

back the cable screen over the 

inner part of the cable gland. 

4. Insert the cable into the most 

suitable inlet and tighten the 

cable gland. 


10 mm 

10 mm 





59


5. Strip the conductors and loosen 

the termination blocks. Fasten 

the conductors by inserting a 

screwdriver in the upper slot. 

6. If applicable, connect the 

external alarm cables. See also 

Figure 22 on page 58. 

7. If applicable, connect the −48 V 

LINK cable. See also Figure 22 

on page 58. 

Max 3.5 mm 

EXT.ALARMS 

EXT. Alarm. 1 

EXT. ALARM.1. RTN 

EXT. Alarm. 2 


EXT. Alarm. 3 


EXT. Alarm. 4 


- 48 V 

LINK 


48 V 

48 V_RTN 





8. Connect the applicable 

transmission cables. The 

figure shows port A, but is also 

valid for port C, B, and D. 

For information on how to 

connect and earth PCM lines, 

see: 

• Page 62 for 75 coaxial cable 

• Page 63 for 100/120 twisted 

pair 

9. Put back the connection frame. 

10. Select transmission impedance 

for each port, using the selector 

switches on the underside of the 

Transmission Interface Model 

(TIM). 


Port A 

100/ 

120 75 

11. Close the IXU cover and fasten the screws. 

TIM 

PORT A 

PORT. A. IN. P. LINE 

PORT. A. IN. N. LINE 

PORT. A. IN. GND 

PORT. A. OUT. P. LINE 

PORT. A. OUT. N. LINE 

PORT. A. OUT. GND 

Port A Port C Port B Port D 

100/ 

120 75 

100/ 

120 75 

100/ 

120 75 

100/ 

120 75 

Port C 

100/ 

120 75 

Port B 

100/ 

120 75 

Port D 

P0102010A 

100/ 

120 75 

P010154D 

61


Connecting PCM Coaxial 75 

1. Connect the inner conductors to 

P.LINE and the outer conductors 

to N.LINE. 

PORT A 







2. Connect the capacitor included between IN.N.LINE and IN.GND. 

3. Connect the jumper wire included between OUT.N.LINE and OUT.GND. 

Figure 23 Connecting PCM Coaxial 75 




Connecting PCM Twisted Pair 100/120 

1. Connect the twisted pairs to 

P.LINE and N.LINE. 


PORT A 







2. Earth the cables according to the following instruction: 

Inner and outer 

shield 


Connect the inner shield to the terminator block, and 

the outer shield to the cable gland, see Figure 24 on 

page 63. 

Outer shield only Fit the shield to the cable gland, see Figure 25 on 

page 64. 

Figure 24 Earthing Inner and Outer Shield 



63


Figure 25 Earthing Outer Shield Only 

5.4.7 Installing the RRU 

This section describes how to install the Remote Radio Unit (RRU). 


Note: To avoid damage, do not place the RRU on its connectors, see Figure 

below. 


Figure 26 Do Not Place the RRU on its Connectors 

Note: Do not install any equipment on the RRU before mounting it on the MBU. 




Caution! 

The equipment is heavy. Lifting the equipment without the aid of a lifting device 

can cause injury. 

1. Hang the RRU onto the upper 

hinge. Position the lower hinge 

and tighten the screw. 

2. Remove the protection cover under the RRU. 

P010122C 

65


3. Open the left side cover on the 

RRU, connect the Y link cabl,e 

and close the cover. Connect 

the AC/DC cable. 

4. Close the RRU using the clasps. 

5.4.8 Connecting Earth Cables 



This section describes how to connect the earth cables to the RRU and the IXU. 

1. Connect the earth cables from 

the earthing point to both IXU 

(master) and RRU. 




Note: If an Omni Antenna is to be installed on the RRU, the RRU earthing 

cable must be connected after the omni antenna bracket has been 

mounted. 

5.4.9 Installing the Fan Unit (If Applicable) 

This section describes how to install the fan unit. 

1. Install the fan on top of the RRU 

and fasten the three screws. 

2. Connect the power cable to the 

RRU. 

5.4.10 Installing RXBP (If Applicable) 


This section describes how to install the Receiver Band Pass filter (RXBP) on 

the RRU and how to connect the cables. 



67


1. Install the RXBP on the RRU 

and tighten the screws. 

2. Connect the first cable from 

connection port RXBP 1 on 

the RXBP to connection port 

RXBP 1 on the RRU. Connect 

the other cable from connection 

port RXBP 2 on the RXBP to 

RXBP 2 on the RRU. 

RXBP 

RX 2 

RX 1 

RXBP 2 

RXBP 1 

RXBP 

RX 2 

RXBP 2 

RX 1 RXBP1 


RXBP 1 RXBP 2 

3. Connect the RX antenna cables to connection port RX 1 and RX 2 on 

the RXBP, and tighten with the appropriate torque wrench. See Table 

9 on page 43. 

For more information about antenna connections, see: 

Site Installation Documentation 

5.4.11 Installing the MCB (If Applicable) 

This section describes how to install the Multicasting Box (MCB) on the RRU 

and how to connect the cables. 



5.4.11.1 Combining Function 


1. Install the MCB to connector 

TX(/RX) 2 on the RRU. Fasten it 

with the two short screws. 

2. Connect the first cable between 

connection port TX(/RX) on 

the MCB and TX(/RX) 1 on the 

RRU. Connect the second cable 

between connection port ANT 2 

and LOAD on the MCB. 


ANT 1 

ANT 2 

TX(/RX) 

MCB 

TX(/RX) 

LOAD 

ANT 2 LOAD 

3. Connect the antenna cable to connection port ANT 1. 



ANT 1 

ANT 2 

TX(/RX) 

MCB 

TX(/RX) 

LOAD 


TX (/RX) 1 


69


4. Strap the cables using the 

appropriate cable tie anchor. 

5. Install the MCB protection cover 

under the RRU and fasten the 

two screws. 




5.4.11.2 Multicasting Function 


1. Remove the protection cover 

from connector TX(/RX) 2 on 

the RRU and install the MCB to 

it. Fasten it with the two short 

screws. 

2. Connect the first cable between 

connection port TX(/RX) on the 

MCB and TX(/RX) 1 on the RRU. 

Cover connection port LOAD 

with protection cover removed 

from connection port TX(/RX) 2. 


ANT 1 

ANT 2 

TX(/RX) 

MCB 

TX(/RX) 

LOAD 

Protection cover 

3. Connect the antenna cables to connection ports ANT 1 and ANT 2. 



ANT 1 

ANT 2 

TX(/RX) 

MCB 

TX(/RX) 

LOAD 



71





under the RRU, and fasten the 

two screws. 

Note: Ensure that cables are 

not squeezed or damaged by 

the cover. 




5.4.11.3 Splitting/Highway Function 


1. Connect the cable between 

connection port TX(/RX) and 

LOAD on both the MCBs. 


2. Remove the protection covers from connector TX(/RX) 1 and TX(/RX) 2 

on the RRU. Install the MCBs to the connection ports. Fasten each of 

them with two short screws. 

ANT 1 

ANT 2 

TX(/RX) 

MCB 

TX(/RX) 

LOAD 

3. Connect the antenna cables to connection ports ANT 1 and ANT 2 

on both MCBs. 



ANT 1 

ANT 2 

TX(/RX) 

MCB 

TX(/RX) 

LOAD 



73





under the RRU and fasten the 

two screws. 

5.4.12 Installing the Integral Omni Antenna (If Applicable) 

This section describes how to install the integral Omni Antenna on the RRU. 

1. Remove the RRU earthing cable if it has been previously installed. See 

Section 5.4.8 Connecting Earth Cables on page 66 






2. Mount the Omni Antenna bracket on top of the RRU, and tighten the captive 

screws. 

3. Install the RRU earthing cable. 

Figure 27 Mounting the Antenna Bracket 

4. Attach the antenna on the bracket. Use the two captive screws on each 

side of the antenna. 

5. Route and fasten the antenna cable with two clamps on the right side of 

the RRU. 

6. Secure the antenna with the sunshield, see Section 5.4.16 on page 77. 

Figure 28 Installing the Omni Antenna 

 

 

75


5.4.13 Installing the Integral Sector Antenna (If Applicable) 

This section describes how to install a Sector Antenna on the RRU. 

1. Attach the Sector Antenna on the front of the RRU. Secure it with four 

screws. 

Figure 29 Installing the Sector Antenna 

5.4.14 Connecting RBS Antenna Cables 


This section describes how to connect antenna cables when a MCB or integral 

antenna is not used. 

1. Connect the RBS jumpers to connection port TX(/RX) 1 and TX(/RX) 2, 

and tighten with the appropriate torque wrench. See Table 9 on page 

43. 





3. Install the protective cover under 

the RRU. 

5.4.15 Testing the Installation 

The RBS is now ready for the site installation tests. 


The site installation tests should be performed directly after the completion of 

the RBS installation, see Chapter Site Installation Tests. 

After the installation and integration testing is completed, return to Section 

5.4.16 on page 77. 

5.4.16 Installing the Sunshields 


This section describes how to install the sunshields. 



77


Different sunshields are used depending on whether or not components are 

installed on the front of the RRU. 

1. If the fan unit or integral Omni Antenna are not used, install the top sunshield 

and fasten two screws either to the RRU or the IXU. See Figure below. 

2. If the fan unit is used, install the fan cover on top of the RRU. See Figure 

below. 


P010232C 


3. Attach the front sunshield to the left sunshield. 


4. Close the front sunshield and attach it to the top shield (fan cover) and to 

the right sunshield. 

5. Lock the shield. 

5.4.17 Performing Concluding Routines 

This section describes the routines to be completed before leaving the site. 

Note: Ericsson strongly advises that when cleaning up after installing the 

RBS, the personnel performing the installation pay particular attention 

to the environment. Primarily, recycle all waste materials that can be 

recycled and sort waste so that it can be disposed of according to 

local regulations. 

Table 11 Objects to Be Recycled or Disposed of After RBS Installation 

Item Sort or Recycle? 

Cable insulation from 

crimping, brazing or 

welding 

Packing chips 

Foam 

Polystyrene 

Bubble plastic 

Cable tie clippings 

Sorted with plastics 

Paper and wood Paper recycling 

Waste metal from cable 

ladders 

Pieces of cable 

Nuts, bolts, washers and 

screws 

Recycled or sorted as metals 

Note: All packing material should be recycled, and shock absorbers disposed 

of, in accordance with local recycling regulations. 

5.4.17.1 Updating the Site Installation Documentation 


1. Check the Site Installation Documentation for deviations from the 

installation. 

2. Update the documents with the changes that apply. 

3. Send the documents to the person responsible for Site Installation 

Engineering. 

79


5.4.17.2 Performing Final Checks 

Before leaving the site, make sure that the following tasks have been completed: 

Table 12 Checklist 

Check the following: OK 

1. All cables are properly routed and connected. 

2. All sunshields are properly installed. 

3. The site is clear of waste materials. 

4. The Site Installation Documentation is updated. 

5. The modified Site Installation Documentation has been 

handed over to the person responsible for the site. 

6. The RBS is powered up if the surrounding temperature 

changes between hot and cold and the RBS installation is not 

completed within 48 hours. (1) 

(1) See Chapter Site Installation Tests. 


6 Antenna System Tests 



This chapter describes the tests, Distance To Fault (DTF) and Standing Wave 

Ratio (SWR), used to verify the antenna system installation. The tests also 

include measuring the feeder length to calculate feeder system loss and delay. 

The tests described are valid for GSM 800/900/1800/1900 passive antenna 

systems for RBS 2308 and RBS 2309. 

Equipment for Antenna System Tests 

The Anritsu Site Master S331C is recommended for the tests described in 

this chapter. 

The following Site Master models can be used, if available: 

• S120A for GSM 800/900 

• S235A for GSM 1800/1900 

• S251A/B for GSM 800/900/1800/1900 

• S331A/B for GSM 800/900/1800/1900 

Note: Instructions for these older instruments are not included in this manual. 

81


External Power 

Serial Interface 

Battery Charging 

Soft Keys 

Mode 

MODE 

Frequency/ 

Distance 

Amplitude 

Sweep 

FREQ/DIST 

AMPLITUDE SWEEP 

Site Master 

12.5-15V DC 

2 

3 4 

5 6 

7 8 

9 0 

Save setup 

Limit 

Save display 

On/Off 

Print 

Figure 30 Anritsu Site Master S331C 

RF Out/Reflection 50W 

Back Lighting 

Start cal 

Recall display 

Contrast 

Escape/Clear 

Auto scale 

Up/Down arrow 

Recall setup 

Marker 

Enter 

Run/hold 

System Menu 

P009531B 

The keys mentioned in the instructions in this chapter are shown in the figure 

above. In the instructions a ‘‘key’’ is marked with the text describing its function, 

while a ‘‘soft key’’ has its text displayed on the screen (next to the key). 

For more detailed information on the Antritsu Site Master, see: 

Preconditions 

Anritsu Site Master User’s Guide 

Before starting the tests, ensure the following: 

• For the DTF Tests, that the installation of feeder cables with jumpers is 

complete prior to testing 

• For the SWR Test, that the connection of antennas and feeder cables with 

jumpers is complete prior to testing. It is recommended not to cover the 

connectors with sealing tape until all testing is complete. 

• A test record for recording the test results is available 


Work Process for Antenna System Tests 


This section describes the order in which to perform the tests. When the exit 

criteria for each procedure are fulfilled, the tester enters the results in the test 

record, then returns to the work process for the next step. 

Checking the Installation 

Calibrating the Antenna Tester 


Performing DTF Tests 

Naming a DTF Measurement 

Calculating the 

Feeder Attenuation 

Calculating the 

Feeder Delay 

Performing SWR Test 

Naming an 

SWR Measurement 

Performing 

Concluding Routines 

Figure 31 Work Process for Antenna System Tests 

The work order can be altered or tests can be removed due to local 

circumstances. In this event, an investigation of the consequences must 

be carried out. If the work order is changed or tests are removed, then the 

department responsible for this manual must be notified and agree to changes, 

or the responsibility is automatically transferred to the person making the 

decision. 

6.1 Checking the Installation 


This section describes how to check that the antenna system installation is 

correct. 

83


1. Verify that the installation is installed in accordance with the Site Installation 

Documentation. 

2. Check that all cables or connectors are free of damage, and that all cables 

(feeders and jumpers) are properly marked. 

3. Check that all connectors are properly connected and tightened. 

4. Check that the bend radius specification of all feeders and jumpers has 

not been exceeded. 

5. Verify the antenna directions against the Site Installation Documentation. 

Consider magnetic influences from nearby metallic objects and deviations 

from magnetic north when using the compass. 

6. Check that the correct cable is connected to the correct antenna. 

7. Record remarks, if any, in the test record and forward them to the person 

responsible for the site installation. 

6.2 Calibrating the Antenna Tester 

This section describes how to calibrate the Site Master, to achieve accurate 

Test results and to compensate for Test Port Extension Cables. 

The calibration includes selecting and setting the frequency range before the 

calibration, performing the calibration and entering the cable parameters in 

the Site Master. 

Note: The Site Master must be calibrated each time the frequency range 

is changed. 

6.2.1 Selecting Frequency Range 

The Site Master also needs to be calibrated if one of the following 

messages is shown in the display: ‘‘CAL OFF’’ or ‘‘↑ C’’. 

This section describes how to select and set the correct frequency range in 

the Site Master. 

1. Press the FREQ/DIST key. 

2. Press the F1 soft key. 

3. Enter the Start frequency in MHz, from the table below. Press ENTER. 

4. Press the F2 soft key. 

5. Enter the Stop frequency in MHz, from the table below. Press ENTER. 

6. Check that the FREQ (MHz) scale in the display area indicates the correct 

frequency start and stop values. 


Table 13 Start and Stop Frequencies 


System Start Freq. (MHz) Stop Freq. (MHz) 

GSM 800 800 1000 

GSM 900 800 1000 

GSM 1800 1700 1900 

GSM 1900 1800 2000 

6.2.2 Performing Calibration 

This section describes how to perform the calibration of the Site Master. 

To calibrate the Site Master, a Precision Open/Short/Load is needed; this 

is shown in the figure below. 

Test Port Extension Cable 

MODE 

FREQ/DIST AMPLITUDE SWEEP 


Site Master 

2 

3 4 

5 6 

7 8 

9 0 

Figure 32 Connecting the Open/Short/Load 

1 

Load 

3 

2 

Open 

Short 

P009530A 

For correct calibration results, ensure that the Open/Short/Load is connected 

at the end of the Test Port Extension Cable, at the same point where the test 

object is to be connected. 

1. Connect the Test Port Extension cable. 

2. Ensure that the correct frequency range is selected. 

3. Press the START CAL key. 

4. Connect the ‘‘Open’’ and press ENTER. Wait for the measurement to be 

completed. 

85


5. Repeat step 4 for ‘‘Short’’ and ‘‘Load’’ according to the step-by-step 

instructions on the screen. 

6. When the calibration is complete, disconnect the calibration equipment 

from the Test Port Extension Cable. 

After the calibration, the display shows ‘‘CAL ON’’ as long as the calibration 

is valid. 

6.2.3 Entering Cable Parameters 

To achieve accurate DTF test results, the correct cable parameters, velocity 

factor, and attenuation (dB/m) for the feeder type must be entered. 

1. Press the MODE key and select ‘‘DTF-SWR’’ by using the Up/Down arrow 

key. Press ENTER. 

2. Press the DTF-AID soft key. 

3. Use the Up/Down arrow key to select ‘‘CABLE LOSS’’. Press ENTER. 

4. Enter the cable loss in dB per metre for the type of feeder being tested, 

from the table below. Press ENTER. 

5. Use the Up/Down arrow key to select ‘‘PROP VEL’’. Press ENTER. 

6. Enter the relative velocity for the type of feeder being tested, from the 

table below. Press ENTER. 

Table 14 Velocity Factor and Attenuation for Different Cables 

Feeder Type 

Andrew 

Velocity 

Factor 

(PROP 

VEL) 

Attenuation, dB/m (CABLE LOSS) 

GSM 

800 

GSM 

900 

GSM 

1800 

GSM 1900 

1/4-in. LDF1 0.86 0.124 0.129 0.189 0.195 

1/4-in. FSJ1 (flex) 0.84 0.179 0.186 0.270 0.278 

3/8-in. LDF2 0.88 0.106 0.110 0.161 0.166 



Table 14 Velocity Factor and Attenuation for Different Cables 

Feeder Type 

Andrew 

Velocity 

Factor 

(PROP 

VEL) 


GSM 

800 

GSM 

900 

GSM 

1800 

GSM 1900 

3/8-in. FSJ2 (flex) 0.83 0.121 0.127 0.185 0.191 

1/2-in. LDF4 0.88 0.066 0.069 0.101 0.104 

1/2–in. FSJ4 (flex) 0.81 0.107 0.112 0.166 0.171 

7/8-in. LDF5 0.89 0.037 0.039 0.058 0.060 

1 1/4-in. LDF6 0.89 0.027 0.028 0.042 0.043 

1 5/8-in. LDF7 0.88 0.022 0.023 0.035 0.036 

Note: If the cable type is not found in the table above, the values must be 

taken from the manufacturer’s specifications. 

6.3 Performing DTF Tests 

The purpose of the Distance To Fault (DTF) test is to verify that there are no 

bad connections or other faults (for example sharp bends) in the feeder system. 

It also measures the length of the feeder system to be used in the feeder 

attenuation calculation. 

It is recommended to perform the DTF tests during the installation phase, 

before the antennas are connected. 

6.3.1 Connecting DTF Test Setup 


This section contains test setups and information about how to connect the test 

equipment for the DTF tests. 

1. Connect the 50 standard load to the antenna connector of the feeder. 

See figure below. 

2. Connect the test equipment to the RBS jumper. See figure below. 

87


Test Equipment 

Figure 33 DTF Test Setup 

RBS 

Jumper Feeder 

Antenna 

Antenna 

Jumper 

3. Check that all connections are properly connected and tightened. 

6.3.2 Testing Feeder Installation 

50 W 


1. Check that the Site Masters display shows ‘‘CAL ON’’, indicating that the 

Site Master is calibrated. If the display shows ‘‘CAL OFF’’, calibrate the Site 

Master according to Section 6.2 Calibrating the Antenna Tester on page 84. 

2. Ensure that the test equipment is connected according to Section 6.3.1 

Connecting DTF Test Setup on page 87. 

3. Press the FREQ/DIST key to set the frequency. 

4. Press the D1 soft key, enter the desired start value (usually 0.0 m) and 

press ENTER. 

5. Press the D2 soft key, enter the desired stop value (usually a slight 

overestimation of the total length of the feeder system) and press ENTER. 

6. Press the AMPLITUDE key to set the scale. 

7. Press the TOP soft key, enter 1.2 and press ENTER. 

8. Press the LIMIT EDIT soft key and enter 1.05. Press ENTER. 

Note: Ensure that Limit is ON by pressing the LIMIT ON/OFF soft key. 

9. Wait while the Site Master is calculating (6 to 22 seconds depending on 

selected display resolution). 

10. Observe the waveform. Examples of acceptable and unacceptable DTF 

measurement results are shown in the figures below. 

11. Check that no reflections are above 1.05 SWR (31.5 dB Return Loss). See 

Table 19 on page 102, if necessary. 


Example of an Acceptable DTF Measurement 

CAL ON LIM ON 259 POINTS RECALL 

1.20 

1.00 

0.0 

M1:1.01,2.3m 

2:+0.07, 

+38.6m 

DTF DTF1 

DIST (m) 

M3=OFF 

M4=OFF 


50.0 

Figure 34 Example of an Acceptable DTF Measurement 

Example of an Unacceptable DTF Measurement 


1.20 

1.00 

0.0 


2:+0.07, 

+38.6m 


DTF DTF2 

DIST (m) 

M3=OFF 

M4=OFF 

50.0 

ON/OFF 

EDIT 

DELTA 

(M2 - M1) 

MARKER 

TO 

PEAK 

MARKER 

TO 

VALLEY 

BACK 

ON/OFF 

EDIT 

DELTA 

(M2 - M1) 

MARKER 

TO 

PEAK 

MARKER 

TO 

VALLEY 

BACK 

Figure 35 Example of an Unacceptable DTF Measurement 

P007951A 

P007952A 

89


6.3.3 Measuring Feeder Length 

This section describes how to measure the feeder length, based on the result of 

the test in chapter Section 6.3.2 Testing Feeder Installation on page 88. 

1. Press the MARKER key. 

2. Press the M1 soft key. 

3. Press the EDIT soft key and place the M1 marker at the near end of the 

feeder using the UP/DOWN arrow key. See figure below. 


1.20 

1.00 

0.0 


2:+0.07, 

+38.6m 

DTF DTF1 

DIST (m) 

M3=OFF 

M4=OFF 

Figure 36 Placing the M1 and M2 Markers 

50.0 

4. Press the BACK soft key and then the M2 soft key. 

ON/OFF 

EDIT 

DELTA 

(M2 - M1) 

MARKER 

TO 

PEAK 

MARKER 

TO 

VALLEY 

BACK 

P007951A 

5. Press the EDIT soft key and place the M2 marker at the far end of the 

feeder, using the UP/DOWN arrow key. See figure above. 

6. Press the DELTA (M2–M1) soft key and enter the 2 value as the feeder 

length in the test record. 

7. Create a unique trace name according to Section 6.4 Naming a DTF 

Measurement on page 90. Save the measurement by pressing the SAVE 

DISPLAY key. Type in the trace name using the alphanumeric soft keys, 

and press ENTER. 

6.4 Naming a DTF Measurement 

This section describes how to give the measurement a unique name that is 

traceable to a specific antenna system on a specific site. 


1. Find the cell ID in the Site Installation Documentation. 

2. Read the label text on the jumper being measured. 


3. Combine the measurement type, cell ID and label text (a unique name 

with a maximum of 16 characters). 

The following example illustrates these steps: 

1. The cell ID found in the Site Installation 

Documentation is "SOF007_A". 

2. The text on the feeder label is "Cell A: DX1". 

3. The type of measurement is DTF, so the name of 

the measurement is "DTFSOF007ADX1". 

Example 1 Naming a DTF Measurement 

6.5 Calculating the Feeder Attenuation 


This section describes how to calculate the attenuation of the feeder system. 

1. Use the feeder length measured in Section 6.3.3 Measuring Feeder Length 

on page 90. 

2. Find the attenuation value (dB/m) for the cable type in the table below. 

Calculate the total attenuation for each feeder and jumper, by multiplying 

the length in meters by the attenuation per meter. 

3. Add the attenuations for the feeder and the jumpers, see Table 15 on page 

92. 

4. Enter the result of the calculation in the test record. 

5. Repeat the DTF test, and calculate the feeder attenuation for all antenna 

feeders on the site. 

91


Table 15 Attenuation for Different Cables 

Feeder Type 

Andrew 


GSM 800 GSM 900 GSM 1800 GSM 1900 

1/4-in. LDF1 0.124 0.129 0.189 0.195 

1/4-in. FSJ1 (flex) 0.179 0.186 0.270 0.278 

3/8-in. LDF2 0.106 0.110 0.161 0.166 

3/8-in. FSJ2 (flex) 0.121 0.127 0.185 0.191 

1/2-in. LDF4 0.066 0.069 0.101 0.104 

1/2-in. FSJ4 (flex) 0.107 0.112 0.166 0.171 

7/8-in. LDF5 0.037 0.039 0.058 0.060 

1 1/4-in. LDF6 0.027 0.028 0.042 0.043 

1 5/8-in. LDF7 0.022 0.023 0.035 0.036 

Note: If the cable type is not found in the table above, then the values must be 


Example of Calculating the Total Feeder Attenuation (GSM 900) 

A B 

A + B = Total feeder attenuation 

Figure 37 Example of Calculating the Total Feeder Attenuation 


P008453A


See figure in this chapter for feeders and jumpers 

mentioned in the example. 

The frequency band is GSM 900. 

The feeder length has been measured at 40 m. 

1. Cables used: 

RBS jumper (A): 

Andrew 3/8-in. LDF2 

Length: 2 m 

The attenuation is 0.110 dB/m. 

See the table in this chapter. 

Total cable attenuation for the RBS jumper: 

2 x 0.110 = 0.22 dB 

Feeder (B): 


Length: 40 m 

The attenuation is 0.069 dB/m. 


Total cable attenuation for the antenna feeder: 

40 x 0.069 = 2.76 dB 

2. Total attenuation: 

0.22 + 2.76 = 2.98 dB 

3. Enter the results in the test record. 

Example 2 Calculating the Total Feeder Attenuation 

6.6 Calculating the Feeder Delay 


This section describes how to calculate the total delay in the feeder system. 

1. Use the feeder length measured in Section 6.3.3 Measuring Feeder Length 

on page 90. 

2. Find the delay value (ns/m) for the cable type in Table 16 on page 94. 

Calculate the total attenuation for each feeder and jumper, by multiplying 

the length in metres with the delay per metre. 

3. Add the delay for the feeder and the jumpers. 

4. Enter the result of the calculation in the test record. 

5. Calculate the feeder delay for all antenna feeders. 

93


Table 16 Delay Specifications for Different Cables 

Feeder Type Andrew Delay, 

ns/m 

1/4-in. LDF1 3.9 

1/4-in. FSJ1 (flex) 4.0 

3/8-in. LDF2 3.8 

3/8-in. FSJ2 (flex) 4.0 

1/2-in. LDF4 3.8 

1/2-in. FSJ4 (flex) 4.1 

7/8-in. LDF5 3.7 

1 1/4-in. LDF6 3.7 

1 5/8-in. LDF7 3.8 

Note: If the cable type is not found in the table above, the values must be 


See figure in the previous chapter for feeders and jumpers 

mentioned in the example. 

The feeder length has been measured at 40 m. 

1. Cables used: 

RBS jumper (A): 


Length: 2 m 

The delay is 3.8 ns/m. 


Delay for antenna jumper: 

2 x 3.8 = 7.6 ns 

Feeder (B): 


Length: 40 m 

The delay is 3.8 ns/m. 


Feeder delay: 

40 x 3.8 = 152 ns 

2. Total delay: 

7.6 + 152 = 159.6 ns ≈ 160 ns 

3. Enter the results in the test record. 

Example 3 Calculating the Total Feeder Delay 


6.7 Performing SWR Test 


The purpose of the Standing Wave Ratio (SWR) test is to verify that the antenna 

system functions correctly when it is completely installed. The test verifies that 

the SWR is not too high, and that the signal is not reflected back into the RBS. 

6.7.1 Connecting SWR Test Setup 

This section describes how to connect the SWR test setup. 

1. Connect the test equipment to the RBS jumper, see figure below. 

2. Check that all connections are properly connected and tightened. 

Test Equipment 

Figure 38 Test Setup 

6.7.2 Testing the Antenna System 



Jumper 

Feeder 

Antenna 

Antenna 

Jumper 


1. Check that the Site Master’s display shows ‘‘CAL ON’’, indicating that the 

Site Master is calibrated. If the display shows ‘‘CAL OFF’’, calibrate the Site 

Master according to Section 6.2 Calibrating the Antenna Tester on page 84. 

2. Ensure that the test equipment is connected according to Section 6.7.1 

on page 95. 

3. Press the AMPLITUDE key to set the scale. 

4. Press the TOP soft key, enter 2.0 and press ENTER. 

5. Press the LIMIT EDIT soft key, enter 1.4 and press ENTER. 

Note: Ensure that Limit is in ON-mode by pressing the LIMIT ON/OFF 

soft key. 

6. Observe the trace in the frequency range according to the table below. 

95


Table 17 Measurement Frequency Range for Passive Antenna Systems 

System Start Freq. (MHz) Stop Freq. (MHz) 

GSM 800 824 894 

E-GSM 900 880 960 

P-GSM 900 890 960 

GSM 1800 1710 1880 

GSM 1900 1850 1990 

7. Check that no SWR levels are over 1.4 (= 15.6 dB RL) between the 

frequencies stated in the table above. For conversion between VSWR and 

Return Loss see Table 19 on page 102. Enter the test result in the 

test record. For examples of approved and unapproved waveforms, see 

figures below. 

8. Create a unique trace name in accordance with Section 6.8 Naming an 

SWR Measurement on page 97. Save the measurement by pressing the 

SAVE DISPLAY key. Type in the trace name using the alphanumeric soft 

keys, and press ENTER. 

9. Repeat the SWR test for each feeder on the site. 

Example of an Acceptable SWR Measurement 


2.00 

1.4 

1.00 

800.0 

M1:1.03,889.9MHz 

M2:1.19,959.7MHz 

SWR ANTENNA 900 

FREQ (MHz) 

M3=OFF 

M4=OFF 

1000.0 

Figure 39 Example of an Acceptable SWR Measurement 


M1 

M2 

M3 

M4 

ALL 

OFF 


Example of an Unacceptable SWR Measurement 


2.00 

1.4 

1.00 

800.0 

M1:1.03,889.9MHz 

M2:1.19,959.7MHz 

SWR ANTENNA 900 

FREQ (MHz) 

M3=OFF 

M4=OFF 


1000.0 

M1 

M2 

M3 

M4 

ALL 

OFF 

Figure 40 Example of an Unacceptable SWR Measurement 

6.8 Naming an SWR Measurement 



This section describes how to give the measurement a unique name traceable 

to the correct antenna system on the correct site. 

1. Find the cell ID in the Site Installation Documentation. 

2. Read the label on the jumper measured. 

3. Combine the measurement type, cell ID, and label text (a unique name 

with a maximum of 16 characters). 

The following example illustrates these steps: Site Installation Documentation 

1. The cell ID found in the Site Installation 

Documentation is "SOF007_A". 

2. The text on the feeder label is "Cell A: DX1". 

3. The type of measurement is DTF, so the name of 

the measurement is "SWRSOF007ADX1". 

Example 4 Naming an SWR Measurement 

97


6.9 Performing Concluding Routines 

This section describes the actions to be taken before leaving the site, and 

provides a checklist. 

6.9.1 Completing Test Record 

The form below is to be filled out during site work, and must be completed 

before leaving the site. 


Test Record for Antenna System Tests 

Date: 

Site No: 

Tester's Name: 

Test Instrument: 

Anritsu Site Master S_______ 

Installation Check 

DTF Test 

SWR Test 

Cable Marking: 

Signatures 

Responsible for the Record 

Customer Acceptance 

Remarks 

Feeder Length 

Total Feeder Attenuation 

Total Feeder Delay 

SWR/Return Loss 

Site Name: 

RBS Serial No: 

Serial Number: 

RRU 0 RRU 1 RRU 2 

TX(/RX)1 

TX(/RX)2 

RX1* 

RX2* 

* If applicable 


TX(/RX)1 

TX(/RX)2 

RX1* 

RX2* 



TX(/RX)1 

TX(/RX)2 

RX1* 

RX2* 



TX(/RX)1 

TX(/RX)2 

RX1* 

RX2* 


Date: Name: 

Date: Name: 

Figure 41 Test Record for Antenna System Tests 




99


6.9.2 Making a Test Record Supplement 

The figure below is an example of a printout from the Site Master Software 

Tools. This should be added as a supplement to the test protocol, and included 

in the Site Installation Documentation. 

VSWR 

1,200 

1,175 

1,150 

1,125 

1,100 

1,075 

1,050 

1,025 

1,000 

0 

Limit: 1,05 

M1 

5 

Resolution: 259 

BiasTee: OFF 

Date: 02/23/2001 

Model: S331B 

10 

15 

Distance To Fault 

DTFSOF007ADX1 

M1: 1,014 @ 2,132m M2: 1,008 @ 40,698m 

20 

25 

30 

Distance (0,0 - 50,0m) 

CAL: ON(COAX) 

Output Power: -30,00 dBm 

Time: 04:18:45 

Serial#: 00028071 

Figure 42 Example of a DTF Measurement Plot 

35 

40 

M2 

45 

50 

P007955A 

After saving all test results in the Site Master, the test results must be 

transferred to a PC using the serial cable and the Site Master Software Tools. 

See the instructions below. For further instructions, see: 

Anritsu Site Master User’s Guide 

1. Connect the Site Master to the PC’s serial port, using the serial cable. 

2. Start the Site Master Software Tools on the PC. 

3. Click the Start Plot Capture button in the Site Master Software Tools. 

4. Select the desired plots from the Plots Download dialog box and click OK. 

5. Save the plots to the PC. 

6. Print the plots from the Site Master Software Tools, and insert them in 

the Site Installation Documentation. 


6.9.3 Filling in the Checklist 


The following checklist is not mandatory but is strongly recommended. Local 

procedures and safety regulations must be evaluated and included in this 

checklist. 



1. That all outdoor antenna system connectors are covered with 

sealing tape. 

2. That the test record is filled in. 

3. That the Site Installation Documentation is completed with the 

test record and the test record supplements. 

6.10 SWR ↔ Return Loss Conversion Table 


This section provides the corresponding Standing Wave Ratio (SWR) 

measurements for a range of Return Loss values, if needed. 

101


Table 19 Conversion Table 

Return 

Loss 

(dB) 

SWR Return 

Loss (dB) 

SWR Return 

Loss (dB) 

SWR 

4.0 4.42 16.0 1.38 28.0 1.08 

6.0 3.01 16.2 1.37 28.5 1.07 

8.0 2.32 16.4 1.36 29.0 1.07 

10.0 1.92 16.6 1.35 29.5 1.07 

10.5 1.85 16.8 1.34 30.0 1.06 

11.0 1.79 17.0 1.33 30.5 1.06 

11.2 1.76 17.2 1.32 31.0 1.05 

11.4 1.74 17.4 1.31 31.5 1.05 

11.6 1.71 17.6 1.30 32.0 1.05 

11.8 1.69 17.8 1.29 32.5 1.04 

12.0 1.67 18.0 1.29 33.0 1.04 

12.2 1.65 18.5 1.27 33.5 1.04 

12.4 1.63 19.0 1.25 34.0 1.04 

12.6 1.61 19.5 1.23 34.5 1.03 

12.8 1.59 20.0 1.22 35.0 1.03 

13.0 1.58 20.5 1.21 35.5 1.03 

13.2 1.56 21.0 1.20 36.0 1.03 

13.4 1.54 21.5 1.18 36.5 1.03 

13.6 1.53 22.0 1.17 37.0 1.02 

13.8 1.51 22.5 1.16 37.5 1.02 

14.0 1.50 23.0 1.15 38.0 1.02 

14.2 1.48 23.5 1.14 38.5 1.02 

14.4 1.47 24.0 1.13 39.0 1.02 

14.6 1.46 24.5 1.12 39.5 1.02 

14.8 1.44 25.0 1.12 40.0 1.02 

15.0 1.43 25.5 1.11 40.5 1.01 

15.2 1.42 26.0 1.10 41.0 1.01 

15.4 1.41 26.5 1.10 41.5 1.01 

15.6 1.40 27.0 1.09 42.0 1.01 

15.8 1.39 27.5 1.08 42.5 1.01 


7 Site Installation Tests 


This section describes the test procedure for site installation tests. 


Before starting the tests, ensure the following: 

• A completed test record for Antenna System Tests is available 

• The nominal AC mains voltage and/or DC supply on the site is known 

Note: The information above can be found in: 


• A test record is available 

• Chapter Safety Instructions has been read 


The list below displays the manual required for site installation tests. 

Table 20 Required Manual for Site Installation Tests 

Product Name Description Product Number 

OMT User’s Manual Included in OMT Kit EN/LZN 720 0001 

7.1.2 Before Starting Test Procedure 

Before starting the test procedure, ensure the following: 

• All personal rings, wrist watches, and other metallic objects are removed 

before working with the power system 

• The necessary tools, instruments, and documentation are available 

7.1.3 Work Process for Site Installation Tests 


This section describes the order in which to perform the tests. When the exit 

criteria are fulfilled, the tester should enter the results in the test record, and 

return to the work process for the next step in the process. 

103



Inspecting the 

Cable Connections 

Verifying AC Mains 

and/or DC Power Supply 

Switching on the RBS 

Setting the 

IDB Parameters 

Reading Fault Status 

Performing 


Testing Fan Unit 

Testing External Alarms 

Figure 43 Work Process for Site Installation Tests 

The work order can be altered or tests can be removed due to local 

circumstances, but if this is the case, an investigation of the consequences 

must be carried out. If the work order is changed or tests are removed, the 

department responsible for this document must be notified and agree to the 

changes, or the responsibility is automatically transferred to the person making 

the decision. 

7.2 Inspecting Cable Connections 

1. Ensure that all power switches on the MBU are switched off. 

2. Check that all cables are properly connected and all connections tightened. 

7.3 Checking AC Mains and DC Power Supply 

This section describes how to verify that the RBS has the correct incoming AC 

Mains and, where applicable, DC power. 



Danger! 




1 Open the sunshields and the RRU, and remove the lid from the MBU. 

2 If applicable, use a multimeter to 

measure the incoming AC Mains 

power to the RBS and check that 

it is between 100 and 127 V AC, 

or between 200 and 250 V AC. 

3 If applicable, use a multimeter to 

measure the incoming DC power 

to the RBS and check that it is 

between −40.5 and −60 V DC. 

4 Put back the MBU lid and tighten the screws. 

7.4 Switching on RBS 


This section describes how to switch on the RBS. 



105


1 Switch on the RBS AC on/off switches on the MBU on all cabinets. 

Repeat this procedure for the RBS DC on/off and the RRU on/off 

switches. 

2 Before continuing testing of the 

site installation, ensure that the 

indicators on the RRU and IXU 

interface panels have the status 

shown in the table below when 

the RBS is in local mode. 

Table 21 RRU Indicators Before Setting the IDB Parameters 

RRU Status 

Fault Off 

Operational Off 

Local N/A 

RF off On 

AC power on On (1) 

DC power on On (1) 

RRU temp. Off 

(1) Depending on power system configuration. 

Table 22 IXU Indicators Before Setting the IDB Parameters 

IXU Status 

Fault Off 

Operational Off 

Local On 

RBS fault Off 

External alarm Off 


106 EN/LZT 720 0027 Uen R3A 2005-01-12


Table 22 IXU Indicators Before Setting the IDB Parameters 


IXU temp. Off 

Transmission OK On/Off (2) 


(2) Status, depending on transmission configuration. 

Note: In cold conditions, the RBS may need up to 60 minutes to warm up, 

during which time the IXU or RRU temperature indicator is on. The 

internal heater works only with an AC power supply. 

3. If the Operational indicator on the RRU and/or IXU is flashing, SW is being 

downloaded. Wait until the indicator switches off before continuing. 

4. If the Local indicator on the IXU is off or flashing, press the Local/Remote 

button to set the IXU in local mode. 

7.5 Testing Fan Unit 


This section describes how to test the optional fan unit (if applicable). 

Figure 44 Location of Fan Unit Test Button 

1. Remove the fan unit cover. 

2. Press the Test button on the fan unit. 

The fan unit performs a self test. 

3. Check that the sequence below is carried out: 

• The fans run at maximum speed for approximately 5 seconds 

• The fans run at nominal speed for approximately 5 seconds 

• The fans stop for approximately 5 seconds 

FAN UNT-01 

Fault 

Operational 

4. Ensure that the indicator status of the fan unit is in accordance with the 

table below: 

Test 


107


Table 23 Fan Unit Indicators After Test 

Fan unit Indicator Status 

Fault Off 

Operational On 

5. Put back the fan unit cover. 

7.6 Setting IDB Parameters 

This section describes how to set the IDB parameters using the Operation and 

Maintenance Terminal (OMT). 

For more information on the use of the OMT, see: 

OMT User’s Manual EN/LZN 720 0001 

Work Process for Setting IDB Parameters 

This section describes the work process for setting the IDB parameters. 



Defining Transmission 

Interface E1, 75 


Connecting the OMT 

Reading the IDB 



Defining TEI 

Installing IDB 

Figure 45 Work Process for Setting IDB Parameters 

Creating IDB 

Defining External Alarms 

Defining Hardware 

Info for Passive Units 

Note: The IDB parameter values required are found in: 

7.6.1 Connecting OMT 



Defining Delay 

Defining 

GPS Parameters 

Defining Loss 

Defining RBS Identity 


Interface T1, 100 

Defining TNOM 

This section describes how to connect the OMT physically to the RBS. 

1. Remove the lid from the OMT port on the IXU. 

109


2. Connect the OMT cable from the PC serial port to the OMT port on the 

right-hand side of the IXU. If an extended OMT cable is connected to the 

OMT port, then connect the OMT cable to the end of the extended OMT 

cable. 

Figure 46 Connecting OMT to IXU 

3. Start the OMT. 

7.6.2 Reading IDB 

Local/Remote 

AC power on 

DC power on 

IXU temp. 

Transmission OK 

Port A Port C 

Port B Port D 

OMT Cable 


This section describes how to read the IDB in the OMT to check if the values of 

the IDB parameters are correct. 

1. On the RBS 2000 menu, click Connect to connect the OMT logically 

to the RBS. 

2. On the Configuration menu, click Read IDB. 

3. On the Configuration menu, click Display and then Information to enter 

the Display Information window. 

4. Select IDB and click Run. Check the parameters listed in the table below. 

Table 24 Reading and Checking IDB 

Check that the following parameters are correct: OK 

Transmission interface 

Cabinet configuration(s) 

Antenna sector configuration(s) 

5. If the IDB parameters in the table above need to be set, see Section 7.6.3 

Creating IDB on page 111. 



If the IDB parameters above are correct, set the following applicable 

site-specific IDB parameters: 

• Alarm inlets (external alarms) 

• Delay 

• GPS parameters 

• Hardware Information 

• Loss 

• RBS Identity 

• Transmission (PCM) parameters 

• TEI value for IXU 

• TNOM parameters 

7.6.3 Creating IDB 

This section describes how to define the configuration setup in the OMT. The 

OMT can detect the cabinet setup if the Detected HW Information checkbox in 

the Create IDB window is selected. 

Note: The OMT must be logically connected to the RBS to be able to retrieve 

the HW information. 

Defining Transmission Interface 

1. On the RBS 2000 menu, ensure that the OMT is logically disconnected 

from the RBS. 

2. On the Configuration menu, click Create IDB to open the Create IDB 

window. 

3. Select the transmission interface. 

Defining Cabinet Setup 

1. To add cabinets to the Cabinet Setup box, click New to open the Define 

Setup for Cabinet window. 

2. In the Cabinet Type box, select the RBS type: 

– 2308 

– 2309 


3. In the Define Master Cabinet Setup window, select the applicable master 

cabinet configuration and click OK: 

111


– IXU 

– IXU/RRU 

4. Select the power system used: 

– 230/115 V AC, no backup 

– 230/115 V AC, external battery 

– −48 V DC 

5. If an RRU is present in the cabinet, select the climate system used: 

– Cooling by convection 

– Fan unit 

6. Click OK when finished. 

7. Repeat steps 4 to 9 to add another RRU cabinet to the configuration. 

Defining Antenna Sector Setup 

For different Site Cell Configurations (SCC), the number of cells is related 

to antenna sectors. The number of TRXs is related to the number of RRUs 

(antenna systems). The RBS 2308 has four TRX/RRU and RBS 2309 has 

two TRX/RRU. 

Example 1: For an RBS 2309 in a SCC = 1x4, define an RBS with two RRUs 

(two TRX/RRU) and then define one antenna sector with two antenna systems 

(RRUs). 

Example 2: For an RBS 2308 in a SCC = 3x4, define an RBS with three RRUs 

(four TRX/RRU) and then define three antenna sectors with one antenna 

system (RRU). 

1. To add antenna systems for an antenna sector, click New in the Antenna 

Sector Setup window. 

2. To define an antenna system for a sector, click New. 

3. In the Frequency box, select the frequency used. 

4. In the Duplexer box, select ‘‘Yes’’ if the RRU internal duplexer is used 

(duplex mode) and ‘‘No’’ if not (simplex mode). This selection is only 

applicable for RBS 2308 configured with 800/1900 RRUs. 

5. Click OK. 

6. To define another antenna system within the same antenna sector, click 

New again. 



7. Click OK, or repeat step 6 for adding more RRUs within the same antenna 

sector. 

8. To define an antenna system in a new sector, repeat steps 1 to 7. 

9. Click OK in the Create IDB window when all antenna sectors are defined. 

The Final Configuration Selection window appears. 

Selecting Final Configuration 

1. In the Final Configuration Selection window, select the SCC. 

2. Verify that the correct parameters have been entered. Click OK. 

3. In the OMT dialog box asking ‘‘Do you really want to overwrite the IDB 

data in the OMT?’’, click Yes. 

4. In the OMT dialog box asking ‘‘Do you want to re-use data in the previous 

configuration?’’, click Yes if the IDB is to be modified only, and No if a 

new IDB is to be configured. 

7.6.4 Defining External Alarms 


This section describes how to define the external alarms, that is, 

customer-specific alarms, if applicable. See Site Installation Documentation. 

1. On the Configuration menu, click Define and Alarm Inlets to open the 

Define Alarm Inlets window. 

2. In the Alarm Inlet Information window, select a physically connected alarm 

inlet that needs to be defined. 

113


Figure 47 Defining Alarm Inlets 

3. In the Inlet Usage box, select ‘‘External Alarm’’. 


4. In the Type box, define the alarm type as ‘‘Closing’’ (the alarm is issued 

when the alarm loop closes) or ‘‘Breaking’’ (the alarm is issued when the 

alarm loop breaks). 

5. In the ID box, give the alarm the appropriate ID number. 

6. In the Severity box, set the severity level of the alarm. 

7. Add a message in the Comment box. 

This message will be displayed in the BSC/OMT if the alarm is issued. 

8. Click Apply after defining the alarm. 

9. Repeat steps 2 to 8 to define remaining alarms. 

10. Click OK when all alarms are defined. 


Defining External Alarms for EBB, and PBC 


The alarms for the External Battery Backup (EBB), and Power and Battery 

Cabinet (PBC) must be defined according to the tables below. 

EBB-01 

Table 25 External Alarm Definitions for EBB-01 

Alarm 

Inlet 

Inlet 

Usage 

0/5 External 

Alarm 

0/6 External 

Alarm 

0/7 External 

Alarm 

Type Id Severity 

Breaking 

Breaking 

Breaking 

(1) 

(1) 

(1) 

Comment 

Level 2 Battery backup fault 

Level 2 Battery backup is about 

to end 

Level 2 Check battery 

(1) Preferably, ID should be set to the same number as the corresponding alarm inlet. 


Table 26 External Alarm Definitions for EBB-06 

Alarm 

Inlet 

Inlet 

Usage 

0/4 External 

Alarm 


Breaking 

(1) 

Comment 



PBC 

Table 27 External Alarm Definitions for PBC 

Alarm 

Inlet 

Inlet 

Usage 

0/4 External 

Alarm 

7.6.5 Defining Delay 



Breaking 

(1) 

Comment 



This section describes how to define RX and TX feeder delay. 

1. On the Configuration menu, click Define and Delay to open the Define 

Delay window. 

115


2. Select the cable for which delay is to be defined, and click Run. 

3. Enter the delay value (in ns) and click OK. 

4. Repeat steps 2 and 3 for the remaining cables. 

5. Click Close when finished. 

7.6.6 Defining GPS Parameters 

This section describes how to define the GPS parameters. To be able to use 

GPS as a synchronisation source, the RBS must be equipped with a GPS 

receiver. 

1. On the Configuration menu, click Define and GPS Parameters to open 

the Define GPS Parameters window. 

2. Select Yes for GPS present. 

3. Enter the GPS RX delay (in ns). This is the delay in the GPS antenna, GPS 

antenna feeder cables and GPS receiver. 

4. Enter the GPS RX DXU delay. This is the delay from the GPS receiver to 

the IXU, including the delay in the OVP and optional EBB. 

5. Click OK when finished. 

7.6.7 Defining Hardware Information for Passive Units 

This section describes how to define hardware information for passive units, 

if applicable. See Site Installation Documentation. 

1. On the Configuration menu, click Define and Hardware Info to open 

the Define HW Info window. 

2. Select the applicable HW unit in the list and click Run. 

3. Enter the hardware information, and click OK when finished. 

4. Repeat steps 2 to 3 for all applicable HW units. 

5. Click Close when finished. 

7.6.8 Defining Loss 

This section describes how to define the Total Feeder Attenuation. 

1. On the Configuration menu, click Define and Loss to open the Define 

Loss window. 

2. Select the appropriate feeder cable (for example, FEED_RXA 0) and click 

Run. 



3. In the Define Loss window, enter the Total Feeder Attenuation from the test 

record for Antenna System Tests and click OK. The OMT has default values 

for the RRU to RXBP RX cables. 

4. Repeat steps 2 to 3 for each RX and TX feeder used. 

5. Close the Define Loss window when finished. 

7.6.9 Defining RBS Identity 

This section describes how to define the RBS Identity. 

1. In the Configuration menu, select Define and RBS Identity to open the 

Define RBS Identity window. 

2. In the RBS name field, enter the unique RBS name. 

3. In the RBS description field, enter the site name or the location of the site 

(maximum of 100 characters). 

4. Click OK. 

7.6.10 Defining Transmission Interface E1, 75 

This section describes how to define the PCM parameters for transmission 

interface E1, 75 . 

1. On the Configuration menu, click Define and PCM. 

2. Set the parameters according to the table and instructions below. 

3. Click OK when all parameters are set. 

Table 28 PCM Parameter Settings for Transmission Interface E1, 75 

PCM Parameter Settings 

Transmission Interface E1 

Network Topology See Site Installation Documentation 

Sync Source See Site Installation Documentation 

CRC-4 See Site Installation Documentation 

Spare bits See Site Installation Documentation 

Receiver Sensitivity 


A Short haul 

B Short haul 

C Short haul 

D Short haul 

117


7.6.11 Defining Transmission Interface E1, 120 

This section describes how to define the PCM parameters for transmission 

interface E1, 120 . 

1. On the Configuration menu, click Define and PCM. 



Table 29 PCM Parameter Settings for Transmission Interface E1, 120 


Transmission Interface E1 



CRC-4 See Site Installation Documentation 

Spare bits See Site Installation Documentation 

Receiver Sensitivity 

A 

B 

C 

D 

See instructions below 

The instructions below describe how to calculate the cable attenuation between 

the Far End and the RBS. The cable attenuation determines whether receiver 

sensitivity is to be set to short or long haul. Use of long haul requires that the 

equipment at the far end supports long haul. 

Note: Ports C and D can also be used as a multidrop pair. 

Far End RBS 1 

RBS 2 RBS 3 

A(C) B(D) A(C) B(D) A(C) B(D) 

Figure 48 System View for Transmission Interface E1, 120 

P008428C 

1. Calculate the cable attenuation between the Far End and the RBS 

according to the following formula: 

Cable attenuation = cable length x cable attenuation per metre (or foot). 

If multidrop is used, then calculate the attenuation of the entire RBS chain, 

because Receiver Sensitivity A (C) is determined by the total attenuation of 



the chain. Receiver Sensitivity B (D) is determined by the total attenuation 

to the last RBS in the chain. 

2. If the cable attenuation is less than 6 dB, then set the receiver sensitivity to 

short haul. 

If the cable attenuation is greater than 6 dB, then set the receiver sensitivity 

to long haul. 

3. Set unused ports to short haul. 

Example of Receiver Sensitivity Parameter Calculation for E1, 120 

Far End 

150m 

0,03 dB/m 

RBS 1 

A C B D 


Figure 49 Example of Receiver Sensitivity Parameter Calculation for E1, 

120 

In this example, Far End and the RBS refer to 

the figure above The cable length between the RBS 

and the Far End is 150 m. 

The cable attenuation for the cable between the RBS 

and the Far End is 0.03 dB/m 

1. Calculate the cable attenuation between the 

Far End and the RBS: 

150 m x 0.03 dB/m = 4.5 dB 

2. Set Receiver Sensitivity A for the RBS to 

“Short haul”. 

3. Set Receiver Sensitivity C for the RBS to 

“Short haul” (not connected). 

4. Set Receiver Sensitivity B for the RBS to 


5. Set Receiver Sensitivity D for the RBS to 


Example 5 Calculating Receiver Sensitivity Parameters for Transmission 


7.6.12 Defining Transmission Interface T1, 100 


This section describes how to define parameters for transmission interface T1, 

100 . When using the cable length for calculations in the following sections, 

the cable used must be the reference cable (multipair 22 AWG office cable) 

or similar. 

119


1. Find the transmission interface type in the Site Installation Documentation, 

and use the table below to find the applicable section with instructions 

for setting the parameters. 

Table 30 Selecting Section for Defining T1, Transmission Interface Type 

Known 

If the transmission interface type is... then... 

DSX-1 go to Section Defining LBO 

Parameters as Short Haul on 

Page 121. 

DS1 and... 

the signal level at the customer 

interface and the cable 

attenuation is known 

only the maximum input signal 

level at the far end is known 

neither the signal level at the 

customer interface nor the 

cable attenuation are known 

go to Section Defining LBO 

Parameters as Long Haul 

Manually on Page 124. 



Automatically on Page 126. 

go to Section Defining 

LBO Parameters when 

Transmission Characteristics 

are Unknown on Page 132. 

2. If there is no information about the transmission interface type in the Site 

Installation Documentation, use the cable length to find the appropriate 

section in the table below. 

Table 31 Selecting Section for Defining T1, Cable Length Known 

If... then... 

the cable length is less than 655 feet go to Section Defining LBO 

Parameters as Short Haul on 

Page 121. 

the cable 

length is 

more than 

655 feet 

and... 

the signal level at the 

customer interface and the 

cable attenuation is known 

only the maximum input 

signal level at the far end is 

known 

neither the signal level at the 

customer interface nor the 

cable attenuation are known 



Manually on Page 124. 



Automatically on Page 126. 

go to Section Defining 

LBO Parameters when 

Transmission Characteristics 

are Unknown on Page 132. 

3. If no information is given in Site Installation Documentation, see the table 

below. 




Table 32 Selecting Section for Defining T1, Cable Length Unknown 

If... then... 

there is no information about the 

cable length 

Defining LBO Parameters as Short Haul 

go to Section Defining LBO Parameters 

when Transmission Characteristics are 

Unknown on Page 132. 

This section describes how to define the LBO parameters as short haul. 

1. On the Configuration menu, click Define and PCM to open the Define 

PCM window. See figure below. 

Figure 50 Defining Transmission Parameters 




121


Table 33 PCM Parameter Settings for Transmission Interface T1, Short Haul 

PCM Parameter Setting 


Transmission Interface DS1(T1) 


LBO A 

LBO B 

LBO C 

LBO D 


FDL Use See Site Installation Documentation 

The instructions below describe how to calculate the LBO parameters. 

Note: Ports C and D can also be used as a multidrop pair. 

Customer 

Interface 

DSX-1 


RBS 2 RBS 3 

A(C) B(D) A(C) B(D) A(C) B(D) 

P008645B 

Figure 51 System View for Transmission Interface T1, Short Haul 

1. Determine the length of the cable between the RBS and the customer 

interface (the cross-connection point DSX-1). See figure above. 


since LBO A (C) is determined by the total attenuation of the chain. LBO B 

(D) is determined by the total attenuation to the last RBS in the chain. 

If the cable length is not known, then set the LBO parameters to ‘‘Short 

h., 0 – 133 feet’’. 

2. Use the cable length and the table below to set the correct LBO parameters 

in the OMT. 


Table 34 Setting LBO Parameters to Short Haul in OMT 

Cable Length LBO Setting 

Feet Metres (in the OMT) 


0 – 133 0 – 40 Short h., 0 – 133 feet 

133 – 266 40 – 81 Short h., 133 – 266 feet 

266 – 399 81 – 122 Short h., 266 – 399 feet 

399 – 533 122 – 162 Short h., 399 – 533 feet 

533 – 655 162 – 200 Short h., 533 – 655 feet 

3. Set unused ports to ‘‘Short h., 0 – 133 feet’’. 

Example of an LBO Parameters Calculation for Short Haul 

Customer 

Interface 

(DSX-1) 

200 feet 

(61 metres) 


A C B D 

100 feet 

(30 metres) 

Figure 52 Calculating LBO Parameters for Short Haul 


A C B D 

In this example, customer interface (DSX-1), 

RBS 1 and RBS 2 refer to the figure above. 

RBS 1: 


The cable length between RBS 1 and the customer interface 

(DSX-1) is 200 feet (61 m). 

1. Set LBO A for RBS 1 to “Short h., 133 – 266 feet”. 

See the table above 

2. Set LBO B for RBS 1 to “Short h., 0 – 133 feet”. 

3. Set LBO C and D (not connected) for RBS 1 to 

“Short h., 0 – 133 feet”. 



The cable length between RBS 2 and the customer interface 

(DSX-1) is 300 feet (200 + 100 feet) (91 m). 

1. Set LBO A for RBS 2 to “Short h., 266 – 399 feet”. 

See the table above. 

2. Set LBO B, C and D (not connected) for RBS 2 to 

“Short h., 0 – 133 feet”. 

Example 6 Defining LBO Parameters as Short Haul 

123


Defining LBO Parameters as Long Haul Manually 

This section describes how to define LBO as long haul when the signal level at 

the customer interface and the cable attenuation are known. 

Signal level at the customer interface means either the maximum input signal 

level at the Far End or the carrier advised code at the network interface. See 

figure below. 

Customer Interface 

(Far End/Network 

Interface) 

Maximum input 

signal level/Carrier 

advised code 

Cable attenuation 


A(C) B(D) 

P008431B 

Figure 53 System Parameters for Defining LBO Parameters to Long Haul 


PCM window. See Figure 50 on page 121. 



Table 35 Manual PCM Parameter Settings for Transmission Interface T1, 

Long Haul 



Network Topology See Site Installation Documentation. 

Sync Source See Site Installation Documentation. 

LBO A 

LBO B 

LBO C 

LBO D 


FDL Use See Site Installation Documentation. 

The instructions below describe how to set the LBO parameters manually to 

long haul. 

Note: It is also possible to use ports C and D as a multidrop pair. 

1. If the carrier advised code is given in the Site Installation Documentation, 

then use the table below to set the correct A (B, C, D) LBO parameters. 




since LBO A (C) is determined by the total attenuation of the chain. 

Table 36 Long Haul Parameters for Different Carrier Advised Codes at the 

Network Interface 

Cable Attenuation 

(dB) 

Long Haul Parameters for Different Values of the Carrier 

Advised Code at the Network Interface 

A (0 dB) B (-7.5 dB) C (-15 dB) D (-22.5 dB) 

0 – 7.5 0 -7.5 -15 -22.5 

7.5 – 15 N/A 0 -7.5 -15 

15 – 22.5 N/A N/A 0 -7.5 

> 22.5 N/A N/A N/A 0 

2. If the maximum input signal level is given in the Site Installation 

Documentation, use the table below to set the correct LBO A (B, C, D) 

parameters. 

Table 37 Long Haul Parameters for Different Maximum Input Signal Levels 

Cable Attenuation 

(dB) 

Long Haul Parameters for Different Values of the 

Maximum Input Signal Level at the Far End 

0 dB -7.5 dB -15 dB -22.5 dB 

0 – 7.5 0 -7.5 -15 -22.5 

7.5 – 15 0 0 -7.5 -15 

15 – 22.5 0 0 0 -7.5 

> 22.5 0 0 0 0 

3. If multidrop is used, then set LBO B (D) to ‘‘Long h., 0 dB’’. Used B (D) 

ports in multidrop configurations should always be set to ‘‘Long h., 0 dB’’ 

4. Set unused ports to ‘‘Short h., 0 – 133 feet’’. Unused ports should always 

be set to ‘‘Short h., 0 – 133 feet’’. 

Example of a Manual LBO Parameters Calculation for Long Haul 

Network 

Interface 

Carrier Advised 

Code= 

-15 dB 


Cable 

Attenuation = 

5 dB 


A C B D 

Cable 

Attenuation = 

3 dB 


A C B D 

Cable 

Attenuation = 

9 dB 


A C B D 


Figure 54 Calculating LBO Parameters Manually for Long Haul 

125


In this example, network interface, RBS 1, 

RBS 2 and RBS 3 refer to the figure above. 


Carrier advised code at the network interface is 

“C” (-15 dB) and the cable attenuation is 5 dB. 

1. See the table Long haul parameters for different 

carrier advised codes at the network interface to 

find the correct LBO parameter for LBO A. 

2. Set LBO A to “Long h., -15 dB”. 

3. Set LBO B to “Long h., 0 dB”. 

4. Set LBO C and D (not connected) to 

“Short h., 0 - 133 feet”. 


The cable attenuation between RBS 1 and RBS 2 is 3 dB. 

1. Calculate the total cable attenuation between RBS 2 

and the network interface: 

5 + 3 = 8 dB 


carrier advised codes at the network interface 

to find the correct LBO parameter for LBO A. 

3. Set LBO A to “Long h., -7.5 dB”. 



“Short h., 0 - 133 feet”. 


The cable attenuation between RBS 2 and RBS 3 is 9 dB. 

1. Calculate the total cable attenuation for RBS 3 

and the network interface: 

5 + 3 + 9 = 17 dB 


carrier advised codes at the network interface 

to find the correct LBO parameter for LBO A. 

3. Set LBO A to “Long h., 0 dB”. 

4. Set LBO B, C and D (not connected) to 

“Short h., 0 - 133 feet” 

Example 7 Calculating LBO Parameters Manually for Long Haul 

Defining LBO Parameters as Long Haul Automatically 

This section describes how to define LBO to long haul when the maximum 

input signal level at the Far End is known, but not the cable attenuation. The 

cable attenuation can be measured by the RBS according to the instructions 

below. See figure below. 


Customer Interface 

(Far End) 

Maximum input 

signal level 


Measured cable attenuation 


A(C) B(D) 

P008626B 

Figure 55 System Parameters for Defining LBO Parameters Automatically 

to Long Haul 



2. Use the table and instructions below to set the parameters. 


Table 38 PCM Parameter Settings for Transmission Interface T1, Long Haul 

Automatically 

PCM Parameter Setting 




LBO A 

LBO B 

LBO C 

LBO D 



The instructions below describe how to set the PCM parameters automatically. 

For RBS 1 only: 


1. Set LBO A (C) to ‘‘Long h. ALBO, dB’’. 

2. If stand-alone, then set unused ports to ‘‘Short h., 0 – 133 feet’’. Unused 

ports are always set to ‘‘Short h., 0 – 133 feet’’. 

The RBS automatically sets the correct value in the IDB when the IDB 

is installed. 

Note: The following instructions are for multidrop only. 

127


If multidrop is used, the line attenuation for RBS 1 must be measured according 

to the instructions below. 

For RBS 1: 

1. Set LBO B (D) to ‘‘Long h., 0 dB’’. Used B (D) ports in multidrop are always 

set to ‘‘Long h., 0 dB’’. 

2. On the RBS 2000 menu, click Connect. 

3. On the Configuration menu, click Install IDB. 

The RBS automatically sets the correct value in the IDB. 

The RBS remains in Local mode after the IDB has been installed. 

4. On the Maintenance menu, click Monitor. 

5. In the Available monitors box, select ‘‘Line Attenuation for PCM-A’’ (C) and 

click → to add ‘‘PCM’’ in the Monitors to start box. See figure below. 


Figure 56 Monitoring Cable Attenuation 



6. Click on Start Monitor and read the value of the cable attenuation. The 

displayed value is given in deci dB (10 deci dB = 1 dB). Make a note of 

the value in the test record. 

When configuring the IDB for RBS 2 and RBS 3, follow the instructions below. 

For RBS 2 and RBS 3: 


7. Set LBO A (C) on RBS 2 (RBS 3) to ‘‘Long h. ALBO, 0 dB’’. 


9. On the Maintenance menu, click Monitor. 

10. In the Available monitors box, select ‘‘Line Attenuation for PCM-A’’ (C) and 

click → to add ‘‘PCM’’ in the Monitors to start box. 

129


11. Click on Start Monitor and read the value of the cable attenuation. The 

displayed value is given in deci dB (10 deci dB = 1 dB). Make a note of 

the value in the test record. 

12. Add the measured cable attenuation values. The value given by Lin Att 

PCM A (C) is the cable attenuation to the previous RBS in the chain, so 

the measured value must be added to the value for the previous RBS(s) to 

obtain the total cable attenuation for the RBS in question. 

13. Use the total cable attenuation value to find the long haul parameter value 

for LBO A (C) in the table below. 

Table 39 Long Haul Parameters for Different Maximum Input Signal Levels 

Cable 

Attenuation (dB) 

Long Haul Parameters for Different Maximum Input 

Signal Levels at the Far End 

0 dB -7.5 dB -15 dB -22.5 dB 

0 – 7.5 0 -7.5 -15 -22.5 

7.5 – 15 0 0 -7.5 -15 

15 – 22.5 0 0 0 -7.5 

> 22.5 0 0 0 0 

14. If there is another RBS in the chain, then set LBO B (D) to ‘‘Long h., 0 

dB’’. Used B (D) ports in multidrop configurations should always be set 

to ‘‘Long h., 0 dB’’. 

If this is the last RBS in the chain, then set LBO B (D) to ‘‘Short h., 0 – 133 

feet’’. Unused ports are always set to ‘‘Short h., 0 – 133 feet’’. 

15. If there is another RBS in the chain, then repeat steps 7 to 14. 

Example of an Automatic LBO Parameters Calculation for Long Haul 

Far End 

Maximum 

input signal 

level= 

-15 dB 

Measured cable 

attenuation = 

5 dB 


A C B D 


attenuation = 

3 dB 


A C B D 


attenuation = 

9 dB 


A C B D 


Figure 57 Calculating LBO Parameters Automatically for Long Haul 



In this example, Far End, RBS 1, RBS 2 and RBS 3 

refer to the figure above. 

Maximum input signal level at the Far End is -15 dB. 

The cable attenuation is not known. 


1. Set LBO A to “Long h. ALBO, -15 dB”. 

The cable attenuation is measured by the RBS to 5 dB. 

2. The value of LBO A is set automatically by the RBS. 


4. Set LBO C and D (not connected) to “Short h., 0 - 133 feet” 


1. Set LBO A to “Long h. ALBO, 0 dB”. 

The cable attenuation between RBS 1 and RBS 2 is measured 

to 3 dB by RBS 2. 

2. Add the two measurements to obtain the total cable 

attenuation for RBS 2: 

5 + 3 dB = 8 dB 

3. See the table above to find the correct 

LBO parameter for LBO A. 

4. Set LBO A to “Long h., -7.5 dB”. 

5. Set LBO B to “Long h. 0 dB”. 


“Short h., 0 - 133 feet”. 



1. Set LBO A to “Long h. ALBO, 0 dB”. 

The cable attenuation between RBS 2 and RBS 3 is measured 

to 9 dB by RBS 3. 

2. Add the three measurements to obtain the total cable 

attenuation for RBS 3: 

5 + 3 + 9 dB = 17 dB 

3. See the table above to find the correct 

LBO parameter for LBO A. 

4. Set LBO A to “Long h., 0 dB”. 

5. Set LBO B, C and D (not connected) to 

“Short h., 0 - 133 feet”. 

Example 8 Calculating LBO Parameters Automatically for Long Haul 

131


Defining LBO Parameters when Transmission Characteristics are 

Unknown 

This section describes how to define the LBO parameters if none of the 

following parameters are known: carrier advised code, maximum input signal at 

the customer interface, cable attenuation or cable length. 



2. Set the parameters according to the table below. 


Table 40 PCM Parameter Settings for Transmission Interface T1, 

Transmission Characteristics Unknown 





LBO A ‘‘Long h., 0 dB’’ 

LBO B 

LBO C 

LBO D 

7.6.13 Defining TEI 

‘‘Long h., 0 dB’’, if used 

‘‘Short h., 0 – 133 feet’’, if unused 






This section describes how to define the TEI value for the IXU. 

1. On the Configuration menu, click Define and TEI to open the Define TEI 

dialog box. 

2. Click Run to open the Define TEI for IXU 0 window. 

3. Enter the TEI value found in the Site Installation Documentation. Click OK. 

7.6.14 Defining TNOM 

This section describes how to define the Transport Network Operation and 

Maintenance (TNOM) parameters if supported by the network. 



1. On the Configuration menu, click Define and TNOM to open the Define 

TNOM window. 

2. Set TNOM Use to ‘‘On’’. 

7.6.15 Installing IDB 

3. In the TNOM Timeslot box, enter a valid time slot value: 

−1 – 24 (default value 24), T1 

−1 – 31 (default value 31), E1 

4. In the TNOM Node ID box, enter the correct values. Valid TNOM Node ID 

values are 1 – 65534 (default value is 1). Click OK when finished. 

This section describes how to install the IDB in the RBS, by connecting the 

OMT to the RBS and loading the IDB from the PC to the RBS. 

Note: The RBS must be in Local Mode in order to accept a new or modified 

IDB. 

1. Physically connect the OMT to the RBS if not already connected. See 

Section 7.6.1 Connecting OMT on page 109. 

2. On the RBS 2000 menu, click Connect to connect the OMT logically 



If the OMT detects inconsistencies between the RBS HW and the IDB, 

then the differences will be displayed in a window. However, the IDB in the 

RBScan still be overwriten if an RBS/IDB inconsistency has been detected. 

The IXU and RRUs remain in Local Mode after the IDB has been installed. 

4. On the Configuration menu, click Site Specific Data and Display to open 

the site_specific_data.txt - window. Check that the correct parameters 

have been defined. 

7.7 Reading Fault Status 


This section describes how to read the fault status, using the OMT. If any fault 

indicator on the RBS is on, fault status must be read. 

1. Read the IDB if it has not already been read. See Section 7.6.2 Reading 

IDB on page 110. 

2. On the Maintenance menu, click Monitor to open the Monitor window. 


133


Figure 58 Reading Fault Status 


3. In the Available monitors box, select ‘‘MO fault maps’’ and click → to add 

‘‘RBS’’ into the Monitors to start box. 

4. Click Start monitor. 

5. In the RBS Event Monitor window, check the MO faults box to see if there 

are any faults. If there are, then correct these before continuing. 

When an MO fault is selected, corresponding fault description, action and 

related faults are displayed. See also Appendix Fault List. 

6. Close the RBS Event Monitor window. 

7.8 Testing External Alarms 

This section describes how to use the OMT to test that all external alarms, if 

used, are recognized and handled correctly. The test is passed when all alarms 

are recognized. 



Note: The alarms must be individually identifiable in the OMT. There must 

be no doubt which alarm was indicated. The alarm message must 

be unique for each alarm. 



Figure 59 Testing External Alarms 


2. In the Available monitors box, select ‘‘External Alarm Status’’ and click → to 

add ‘‘Alarm Inlets’’ in the Monitors to start box. 



4. Trigger the desired alarm by either shorting or breaking it. 

Note: Test the alarms in numerical order, and always start with alarm 1. 

5. Check that the appropriate alarm appears in the RBS Event Monitor window. 

135


6. Release the trigger on the alarm and check that the alarm disappears 

from the OMT. 

7. Repeat steps 5 to 7 for all defined external alarms. 

8. Close the RBS Event Monitor window when finished. 


7.9.1 Saving IDB 

This section describes the actions to take before leaving the site and provides a 

site checklist. It also contains a test record. 

In case it is necessary to re-install the IDB, the IDB parameters must be saved 

on the PC. 

1. On the Configuration menu, click Save IDB. 

2. Give the IDB file an RBS-specific name and save the IDB on the PC. 

7.9.2 Checking RRU and IXU Indicators 

1. Ensure that all lids are closed and fastened with screws. 

2. Set the RRU and IXU in remote mode by pressing the Local/Remote 

button. 

3. Check that the RRU and IXU indicators have the status shown in the 

applicable table below: 

• Table 41 on page 137 shows the approved status of the RRU and IXU 

indicators when the RBS is in remote mode but not connected to the BSC. 

• Table 42 on page 137 shows the approved status of the RRU and IXU 

indicators when the RBS is in remote mode, fully operational, and 

connected to the BSC. 




Table 41 RRU and IXU Indicators After Site Installation Tests Without BSC 

Connection 

RBS in remote mode and no BSC connected 

RRU IXU 

Fault Off Fault Off 

Operational Off Operational Off 

Local Flashing Local Flashing 

RF off On RBS fault Off 



RRU temp. Off 


(2) A, B, C, and/or D, depending on transmission configuration. 




IXU temp. Off 

Transmission OK On/Off (2) 

Table 42 RRU and IXU Indicators After Site Installation Tests With BSC 

Connection 

RBS in remote mode, fully operational and connected to the BSC 

RRU IXU 

Fault Off Fault Off 

Operational On Operational On 

Local Off Local Off 

RF off On/Off (1) 



RRU temp. Off 

(1) Depending on BSC. 


(3) A, B, C, and/or D, depending on transmission configuration. 





IXU temp. Off 

Transmission OK On (3) 

4. If the Operational indicator on the RRU and/or IXU is flashing, SW is being 

downloaded from the BSC. Wait until downloading is complete. 

5. If the Local indicator on the RRU and/or IXU does not have the correct 

status, press the Local/Remote button to switch status. 

137


6. If RBS site integration is not performed immediately after site installation 

tests, then close the sunshields. 

7.9.3 Completing the Test Record 

This section contains a test record. It is recommended to fill in the test record 

during the testing procedure. 


Figure 60 Test Record for Site Installation Tests 



139



The following checklist is not mandatory but strongly recommended. Local 


checklist. 



1 The indicators on the RRU and the IXU are in the approved 

status. 

2 The test equipment has been disconnected from the RBS 

3 The RBS cabinet and the mounting base are free from foreign 

objects. 

4 All cabinets and cables are free of damage. 

5 All EMC sealants and cable penetrations are intact. 

6 Top and bottom of cabinet are free of obstructions (for airflow). 

7 The cabinet has been locked, and the screws have been 

tightened. 

8 All tools have been accounted for. 

9 All paperwork has been completed. 


8 RBS Site Integration 



This chapter describes how to integrate the RBS with the BSC into the GSM 

network, and the tests used to verify the integration. 

Integration is carried out with the RBS connected to a PCM link and in close 

co-operation with a BSC operator. 

All results must be documented in the test record. 

Preconditions at the RBS Site 

This section describes the preconditions for personnel at the RBS site before 

integrating the RBS. 

Before starting the integration at the RBS site, ensure the following: 

• The test record for Antenna System Tests has been completed 

• The test record for Site Installation Tests has been completed 

• The RBS commissioning personnel are in contact with the BSC operator 

• The RBS commissioning personnel and the BSC operator have agreed 

on the following parameters: 

− BCCHNO parameters 

− DCHNO parameters 

− BSIC parameters 

− Time slots (TS) used for SDCCH 

Preconditions at the BSC 

This section describes the preconditions for personnel at the BSC before 

integrating the RBS. 

Before starting the integration at the BSC, ensure the following: 

• The test record for Network Element (NE) has been completed 

• The test record for Integration of MSC/VLR has been completed 

• The BSC operator is in contact with the RBS commissioning personnel 

• The BSC operator and the RBS commissioning personnel have agreed 

upon the following parameters: 

141


− BCCHNO parameters 

− DCHNO parameters 

− BSIC parameters 

− Time slots (TS) used for SDCCH 

Work Process for RBS Site Integration 

This section describes the order in which to perform the integration and tests. 

Each section should be completed and the results written in the test record 

before moving on to the next step in the process. See Figure below. 


Testing Transmission 

Bringing the RBS 

into Service 

Making Test Calls on 

the Air Interface 

Performing 


Figure 61 Work Process for RBS Site Integration 

The work order can be altered, or tests can be removed due to local 

circumstances. However, before any such changes are made, an investigation 

of the consequences must be carried out. If the work order is changed or tests 

are removed, the department responsible for this manual must be notified and 

agree to the changes, or the responsibility is automatically transferred to the 

person making the decision. 

8.1 Testing Transmission 

8.1.1 Transmission Test on E1 

This section describes how to test transmission, when the E1 transmission 

interface is used. 



1. Open the RRU, and the IXU 

cover. 

2. Remove the PCM cable 

plug, starting with position A, 

and connect it to the Loop 

Back socket on the Loop 

forward/backward board. 



Loop forward/backward board 

3. Request that the BSC operator checks the Digital Path on the active 

RBLT. 

4. Remove the PCM cable plug from the Loop forward/backward board 

and reconnect it to the socket in the IXU. 

5. Wait for the BSC operator to confirm that the Abis Paths are correctly 

defined and that the Digital Path between the BSC and the RBS is 

working properly. 

6. Repeat steps 2 to 5 for all used PCM lines. 


143


7. Enter Pass/Fail in the test record, see Section 8.4.2 Filling in the Test 

Record on page 150. 

8.1.2 Transmission Test on T1 

This section describes how to test transmission, when the T1 transmission 

interface is used. 

Note: Transmission test on T1 can also be performed in the same way as E1, 

according to Section 8.1.1 on page 142. 

1. Request that the BSC operator uses CSU functions. 

2. Configure the RBS for CSU, using OMT, and restart the RBS. 

For more information regarding CSU ANSI, see: 

BSS R11 Software Reference 

Manual 

EN/LZT 720 0047 

1. Wait for the BSC to check the Digital Path on the active RBLT. 

2. Deactivate CSU functions in the RBS, using OMT and restart the RBS. 

3. Wait for the BSC operator to check that the Abis Paths are correctly defined 

and that the Digital Path between the BSC and the RBS works properly. 

4. Enter Pass/Fail in the test record, see Section 8.4.2 Filling in the Test 

Record on page 150. 

8.2 Bringing the RBS into Service 

This section describes how to bring the RBS into service. 

Note: The BSC operator can bring the MOs into service and deblock them 

even when the RBS is in remote mode. (The RBS then responds 

directly to the BSC operator.) 

1. Set the RBS in local mode by pressing the Local/remote button on the IXU. 

2. Wait until the Local indicator has a steady yellow light, indicating that the 

RBS is in Local Mode. 

3. Wait for the BSC operator to bring the MOs on each TRX into service 

logically and deblock them. 

4. Press the Local/Remote button on the IXU. The Local indicator will start 

flashing. 



The RBS now downloads and executes the commands previously prepared 

by the BSC operator. When the Local indicator turns off, the RBS is in 

remote mode. 

5. Check that all RRUs are in Remote Mode by confirming that the Local 

indicator on each RRU is off. 

6. If BTS PCM Supervision is used, then wait for the BSC operator to activate 

it and check that MO DP state is operational. 

7. Wait for the BSC operator to activate and check the cell. 

8.3 Making Test Calls on the Air Interface 


This section describes how to make test calls on the air interface. The tests are 

performed from the RBS site to verify that all TSs on all TRXs work properly. 

The test calls are performed by using a Test Mobile Station (TEMS). See TEMS 

Investigation GSM Manual in the TEMS Kit. 

Note: It is important to test all TCH-TSs to ensure full capacity. 

All the test calls should be made from a distance of at least 50 m (164 ft) from 

the antenna system. See Figure below. 

Min 50 

TEMS 


Figure 62 Distance From the Antenna System During Test Call Using TEMS 

145


8.3.1 Making Test Call Using TEMS 

This section describes how to make a test call using a TEMS and a PC with 

TEMS SW. The test confirms that all TSs on all TRXs work properly. 

The test record should be completed during the test. See Section 8.4.2 Filling 

in the Test Record on page 150. 

1. Connect the TEMS cable between the TEMS and the PC COM port 1 on 

the PC containing TEMS SW. 

2. Start the TEMS and the TEMS SW. 

For more information on the TEMS and TEMS SW, see : 

TEMS Investigation GSM 

Manual 

LZT 108 2684 

3. In the Externals menu, select Enable Connections. In the External 

Connection window, define the external connections according to the 

table below. 

Table 44 Defining the External Connections 

Definition Port 

MS1 Port COM1 

MS2 Port N/A 

Position Port N/A 

4. In the Control menu, select Test of TCH. Enter the following parameters: 

• Telephone number 

• Frequency (ARCFN) 

• Broadcast Channel (BCCH) 

• Frequency for the Traffic Channel (TCH) 

5. Select the TSs used for traffic and click on Add. The BCCH and SDCCH 

channels are used for signalling and do not carry traffic. Do not make test 

calls on these TSs. 

Repeat this procedure for each TRX. 

6. Click on the Start button. The TEMS now makes a test call on all selected 

TSs. For each TS, verify the speech quality and write ‘‘Pass’’ or ‘‘Fail’’ in the 

test record. See Section 8.4.2 Filling in the Test Record on page 150. 


8.3.2 Making Diversity Test Call 


This section describes how to make a diversity test call. The test confirms that 

both RXD A and RXD B work properly. 

Note: If antenna diversity is not supported, do not make a diversity test call. 

1. Wait for the BSC operator to configure RXD=A. 

2. Request the BSC operator to block all TRXs except the one being tested 

and check that BCCH and SDCCH are configured. 

3. Make a test call from the TEMS. 

4. Request the BSC operator to check that the TCH being tested is busy. 

Check the speech quality, and write ‘‘Pass’’ or ‘‘Fail’’ in the test record. See 

Section 8.4.2 Filling in the Test Record on page 150. 

5. Terminate the call. 

6. Request the BSC to check that the tested TCH is released. 

7. Repeat steps 2 to 6 for all TRXs in the cell. 

8. Wait for the BSC operator to configure RXD=B. 

9. Request the BSC operator to block all TRXs except for the one being 

tested, and check that BCCH and SDCCH are configured. 

10. Make a test call from the TEMS. 

11. Request the BSC operator to check that the TCH being tested is busy. 

Verify the speech quality and write ‘‘Pass’’ or ‘‘Fail’’ in the test record. See 

Section 8.4.2 Filling in the Test Record on page 150. 


13. Request the BSC to check that the tested TCH is released. 

14. Repeat steps 9 to 13 for each TRX in the cell. 

15. Wait for the BSC operator to restore the cell. 

8.3.3 Making Test Call from the Fixed Network 


This section describes how to make a test call from the fixed network. The test 

confirms that the cell is available from the fixed network. 

1. Request the BSC operator to configure a TRX with BCCH and SDCCH. 

2. Request the BSC commissioning staff to make a call from a fixed network 

phone to the TEMS. 

147


3. Request the BSC operator to check that the TCH being tested is busy and 

verify the ARFCN and the TS displayed in the TEMS. Verify the speech 

quality and write ‘‘Pass’’ or ‘‘Fail’’ in the test record. See Section 8.4.2 

Filling in the Test Record on page 150. 


8.3.4 Making Handover Test Call 

This section describes how to make a handover test call. The purpose of 

the test is to verify that handover between cells works properly and that the 

coverage of the cell is in accordance with the cell planning. If no handover takes 

place at cell borders, then the BSC personnel must be contacted. 

Note: The handover test call must be made at least 50 m (164 feet) from 

the antenna system. 

1. Make a test call using TEMS and a PC containing TEMS SW. 

2. Move from one cell to another and verify that the call is not disconnected. 

3. In the Log menu on the PC, select Start Logging. Give the log a unique 

name and select a destination for the log to be saved. 

4. In the Monitor menu, select the Status information menu and Serving + 

neighbouring cell. 

5. Monitor the signal strength (RxLev) and move through the cells to verify that 

handover takes place between cells at the cell borders. See figure below. 



TEMS 

Figure 63 Verifying that Handover Takes Place at the Cell Borders 

6. Write ‘‘Pass’’ or ‘‘Fail’’ in the test record. See Section 8.4.2 Filling in the 

Test Record on page 150. 

7. Terminate the call and stop the log. 



This section describes the actions to be taken before leaving the site, and the 

test record to be completed during the tests. 

8.4.1 Checking the RRU and IXU Indicators 


This section describes how to check that the RRU and the IXU indicators 

show the correct status, when the RBS is connected to the BSC and is fully 

operational. The check should be performed before leaving the site. 

1. Check that the indicators on the RRU(s) and the IXU have the status shown 

in the tables below: 

149


Table 45 RRU Indicators After Site Integration 

RRU Indicator State 

Fault Off 


Local Off 

RF off Off 



RRU temp. Off 


Table 46 IXU Indicators After Site Integration 

IXU Indicator State 

Fault Off 


Local Off 





IXU temp. Off 



(2) A, B, C and/or D, depending on transmission configuration. 

8.4.2 Filling in the Test Record 

This section contains the test record to be filled in during the integration and 

testing of the RBS. 


RBS Site Integration GSM - 

Date: 

Site No.: 

RBS Type: 

Transmission Test: 

Test Call Using TEMS: 

Test Call from Fixed Network: 

Pass/Fail 

Handover Test Call: 

A to B 

Remarks: 


A C B D 

TRX Cell ID ARFCN 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

Site Name: 

BSIC 

Diversity Test Call (if Applicable): 

Cell Configuration: 

TS0 TS1 TS2 TS3 TS4 TS5 TS6 TS7 

RXD TRX0 TRX1 TRX2 TRX3 TRX4 TRX5 TRX6 TRX7 TRX8 TRX9 TRX10 TRX11 

A 

B 

Figure 64 Test Record for RBS Site Integration 


B to C C to A A to C C to B B to A 

P010217F 

151



This section describes the checklist to be filled in after the integration has 

been completed. 

The following checklist is not mandatory but it is strongly recommended. Local 


checklist. 



1. The indicators on the RRU and the IXU are in the approved status. 

2. The test equipment has been disconnected from the RBS. 

3. The RBS cabinet and the mounting base are free from foreign 

objects. 

4. All cables are free of damage. 

5. Top and bottom of cabinet are free of obstructions (for airflow). 

6. The cabinet has been locked, and the screws have been 

tightened. 

7. All tools have been accounted for. 

8. All paperwork has been completed. 

8.4.4 Network Element Acceptance Certificate 

This section contains a Network Element Acceptance Certificate to be filled in 

by the person responsible. See Figure below. 



NETWORK ELEMENT ACCEPTANCE CERTIFICATE 

This is to certify that Ericsson AB has delivered, installed and tested the 

Network Element ............................................................ as defined 

in contract .................. 

The Network element acceptance has been performed in accordance with 

the procedures described in the above mentioned contract. Further reference 

should be made to the acceptance documents. The Network element passed 

acceptance with remarks per attached test report. 

Number of remarks within Ericsson´s responsibilities, that have been made on 

this site:.............. 

Date:.......................... 

The Buyer The Contractor 

Company Name: 

Person Responsible: 

Company Name: 

Person Responsible: 

Ericsson AB 

Figure 65 Example of a Network Element Acceptance Certificate 


P004631C 

153



9 Maintenance 


This chapter describes the maintenance procedures for the RBS 2308 and 

RBS 2309. 



The target group for this document is maintenance personnel. To perform 

maintenance work in a safe and professional way, the work must be done by 

skilled personnel. 

The following qualifications are minimum requirements: 

• Good understanding of radio and telephone engineering 

• Good understanding of engineering English 


This section describes the preconditions that apply to the maintenance 

procedures, including tools and safety. 

9.2.1 Health and Safety Information 

9.2.2 Tools 

Ensure that the chapters Personal Health and Safety Instructions and System 

Safety Information in this manual has been read and fully understood. 

This section presents the recommended torque settings for screws, nuts and 

connectors. 

Torque Values 


Table 48 Screws and Nuts 

Dimension Torque Nm Remark 

M4 2.6 Nm ± 0.15 Nm Normal 

155


Table 48 Screws and Nuts 

M4 1.7 Nm ± 0.15 Nm Reduced torque for captive screw 

M8 21 Nm ± 1.3 Nm Earth nut 

Table 49 Connectors 

Connector Torque Nm Remark 

TNC 1.7 Nm ± 0.15 Nm – 

N 2.7 Nm ± 0.2 Nm – 

9.3 Fault Localisation Using OMT 

This section contains information on how to localise a fault when handling 

an alarm in the OMT. Ericsson recommends that the OMT is used, but if no 

OMT is available, or it is not possible to connect to the RBS, see Section 9.4 

Troubleshooting Using the RBS Indicators on page 173. 

The section is based on the Replacement Unit Map (RU Map) connected to an 

alarm. The RU Map consists of two different kinds of RUs: 

• Physical Units 

The following RUs are mapped to one single physical unit that can be 

replaced in the field. 

− IXU 

− TIM 

− RRU 

− Fan unit 

• Logical units 

The following RUs are handled as one unit, but can actually be one or 

more physical units. 

− Antenna: The logical path from the RRU to (and including) the antenna 

− Battery: The battery backup system including batteries 

− Environment: External conditions (ambient temperature and site power) 

− GPS receiver: The synch. signal received and distributed by the GPS 

receiver 

− GPS receiver DXU cable: The logical link between the GPS receiver 

and the IXU 



− IDB: The installation database stored in the RBS, not the physical 

storage 

− Y Link: The logical link between IXU and RRU(s) 

For supplementary information about RU maps, see: 

9.3.1 Reading Fault Status 

Fault List Micro EN/LZT 720 0466 

This section describes how to read the fault status, using the OMT. If any fault 

indicator on the RBS is on, then the fault status must be read. 

Connect the OMT 

1. Remove the lid from the OMT port on the IXU. 

2. Connect the OMT cable from the PC serial port 1 to the OMT port on the 

right-hand side of the IXU. If an extended OMT cable is connected to the 

OMT port, then connect the OMT cable to the end of the extended OMT 

cable. 

3. Start the OMT 

Figure 66 Connecting OMT to IXU 

Reading the IDB 


Local/Remote 

AC power on 

DC power on 

IXU temp. 


Port A Port C 

Port B Port D 

OMT Cable 

4. In the RBS 2000 menu, select Connect to logically connect the OMT to 

the RBS. 


157


5. In the Configuration menu, select Read IDB 



Figure 67 Reading Fault Status 


7. In the Available monitors box, select ‘‘MO fault maps’’ and click → to add 

‘‘RBS’’ into the Monitors to start box. 


9. In the RBS Event Monitor window, check the MO faults box to see if there 

are any faults. If there are, then correct these before continuing. 

When an MO fault is selected, corresponding fault description, action and 

related faults are displayed. See also Fault List. 

10. When all faults are corrected, close the RBS Event Monitor window. 


9.3.2 SO CF RU:0/ IXU 


This section describes how to localise an SO CF RU:0/ IXU fault. 

Related RUs 

The RUs listed below have higher priority than the RU described in this section. 

If they are present, then proceed to the related section before handling this RU. 

• If ‘‘SO CF RU:34/ IDB’’ appears in the OMT, then proceed with Section 

9.3.8 SO CF RU:34/ IDB on page 167. 

• If ‘‘SO CF RU:3/ Y link’’ appears in the OMT, then proceed with Section 

9.3.3 SO CF RU:3/ Y Link on page 159. 

Displaying Fault Information 

Display fault information according to Section 9.3.1 Reading Fault Status on 

page 157 

Perform the following actions step-by-step until the fault ceases: 

Resetting IXU 

1. Press the IXU reset button on the IXU interface panel. 

Loading SW in the RBS 

2. Load SW and IDB. 

3. Replace the flash card, proceed with Section 9.5.1 Flash Card Replacement 

on page 185. 

Replacing IXU 

4. Replace the IXU, proceed with Section 9.5.3 IXU Replacement on page 

193. 

9.3.3 SO CF RU:3/ Y Link 

This section describes how to localise an SO CF RU:3/ Y Link fault. The Y link 

cable is connected between the IXU and the RRU(s). 

Related RUs 


The RU listed below has higher priority than the RU described in this section. If 

it is present, proceed to the related section before handling this RU. 

• If ‘‘SO CF RU:34/ IDB’’ appears in the OMT, proceed with Section 9.3.8 

SO CF RU:34/ IDB on page 167. 

159




page 157. 


Checking IDB Configuration 

1. In the OMT, ensure that the IDB is in accordance with the HW cabinet 

configuration. 

Checking RRU Power 

Perform the following actions step-by-step until the fault ceases, or until the 

RRU power is confirmed. 

Note: This is only valid for an RRU connected to the Y link-generated alarm. 

2. Check that the indicators AC Power on/DC Power on on the RRU interface 

panel are ON. 

3. Open the RBS and check that the RRU power is switched on. 

4. Check that the power cable from the MBU to the RRU is correctly connected. 

5. Disconnect the power cable from the RRU and use a multimeter to check 

that the correct voltage is being supplied to the RRU, see Figure and Table 

below. 

For more information about correct voltage, see: 

RBS 2308, RBS 2309, RBS 2109, 

EBB-01 and EBB-06 Hardware 

Reference Manual 

EN/LZT 720 0058 


2 

1 

3 

6 


5 

Not used 

Figure 68 Measuring Voltage on RRU Power Cable 

Table 50 Pins and Functions 

Connector Pin Function 

1 DC_P 

2 DC_N 

3 PE 

5 AC_L2 

6 AC_L1 

Resetting RRU 


6. Press the RRU reset button on the RRU interface panel connected to the 

faulty Y link 

Resetting IXU 

7. Press the IXU reset button on the IXU interface panel 

Checking Y Link Cable 



161


8. Check that the Y link cable is correctly connected to both the IXU and 

the RRU 

9. Check that the cable is free from damage 

10. If the Y Link cable is damaged, replace it according to Section 9.5.11 Y Link 

Cable Replacement on page 217 

Replacing the RRU 

11. Replace the RRU, see Section 9.5.8 RRU Replacement on page 209 

Replacing the IXU 

12. Replace the IXU, see Section 9.5.3 IXU Replacement on page 193 

9.3.4 SO CF RU:4/ TIM 

This section describes how to localise an SO CF RU:4/ TIM fault. 

Related RUs 


If they are present, go to the related section before handling this RU. 

• If ‘‘SO CF RU:0/ IXU’’ appears in the OMT, proceed with Section 9.3.2 

SO CF RU:0/ IXU on page 159 

• If ‘‘SO CF RU:3/ Y link’’ appears in the OMT, proceed with Section 9.3.3 

SO CF RU:3/ Y Link on page 159 

• If ‘‘SO CF RU:34/ IDB’’ appears in the OMT, proceed with Section 9.3.8 

SO CF RU:34/ IDB on page 167 

• If ‘‘SO TRXC RU:0/ RRU’’ appears in the OMT, proceed with Section 9.3.12 

SO TRXC RU:0/ RRU on page 172 



page 157. 


Checking Contacts on TIM and IXU 

1. Check that the TIM is correctly installed, and that all connector pins on both 

IXU and TIM are free from damage. 

Replacing TIM 

2. Replace the TIM, see Section 9.5.7 TIM Replacement on page 206. 


Resetting IXU 


3. Press the IXU reset button on the IXU interface panel. 

Replacing IXU 

4. Replace the IXU, see Section 9.5.3 IXU Replacement on page 193. 

9.3.5 SO CF RU:14/ Battery 

This section describes how to localise an SO CF RU:14/ Battery fault. 

Related RUs 

• If ‘‘SO CF RU:31/ Environment’’ appears in the OMT, together with ‘‘SO CF 

EC2:10/ Mains fail (external power source fail)’’, then proceed with Section 

9.3.7 SO CF RU:31/ Environment on page 165. 



page 157. 


Checking HW/IDB 

1. Check the DC power indicator on the IXU, and the RRU interfaces, to locate 

the cabinet issuing the alarm. 

2. Check in the OMT that the IDB configuration is correct, according to the 

HW cabinet configuration, regarding defined climate system. 

Checking Cabinet Power 

3. Open the RBS and check that the DC power is switched on. 

4. Open the MBU cover and check that the incoming DC cable is correctly 

connected. 

Checking the Battery Backup System 

5. Check the backup power chain from the IXU to the battery backup system, 

including any optional fuses. 

6. Check the battery backup system according to the manufacturer’s 

documentation. 

9.3.6 SO CF RU:15/ Fan 


This section describes how to localise an SO CF RU:15/ Fan fault. 

163


Related RU 


it is present, go to the related section before handling this RU. 


9.3.8 SO CF RU:34/ IDB on page 167 



page 157. 

Perform the following actions step-by-step until the fault ceases. 


1. Check in the OMT that the IDB configuration is correct, according to the 

HW cabinet configuration, regarding defined climate system. 

Checking Fan Unit 

Caution! 





2. Remove the fan unit cover. 

3. Ensure that the fans rotate freely and without obstruction. 

Resetting Fan Unit 



Figure 69 Fan Unit Test Button 

5. Check that the test sequence below is carried out: 






Fault 

Operational 

6. Ensure that the indicator status of the fan unit is in accordance with the 

table below: 


Fan Unit Indicator LEDs Status 

Fault Off 


Replacing Fan Unit 

Test 


7. Replace the fan unit, see Section 9.5.4 Fan Unit Replacement on page 197. 

9.3.7 SO CF RU:31/ Environment 

This section describes how to localise an SO CF RU:31/ Environment fault. 

This fault is only generated by external factors, for example climate or incoming 

power. 

Related RU 



it is present, go to the related section before handling this RU. 



165




page 157. 



1. Check in the OMT that the IDB configuration is correct, according to the HW 

cabinet configuration, regarding defined power system and climate system. 

Checking Climate 

2. Inspect the airflow path in the RBS, and ensure that the airflow is not 

obstructed. 

3. If the temperature is between 45 and 55 C, install a fan unit. For more 

information, see Chapter Installation of RBS in this manual. If the 

temperature is below -15 C, then the RBS should be powered with AC. AC 

power is needed for the RBS to start the heater. For more information, see: 




Checking Incoming AC Power (Optional) 

4. Open the MBU cover and use 

a multimeter to check that the 

power input is either 100 V AC 

to 127 V AC, or 200 V AC to 250 

V AC. 

EN/LZT 720 0058 



Checking Incoming DC Power (Optional) 



voltage supplying the RBS, is 

between −40.5 and −60.0 V DC. 

If a DC supply is not detected, 

then check the DC supply 

source. 

9.3.8 SO CF RU:34/ IDB 


This section describes how to localise an SO CF RU:34/ IDB. 



page 157. 


Resetting IXU 

1. Press the IXU Reset button on the IXU Interface panel. 

Reinstalling IDB 

2. Reinstall the IDB. For more information, see Chapter Site Installation Tests 

in this manual. 

Replacing Flash Card 

3. Replace the flash card, see Section 9.5.1 Flash Card Replacement on 

page 185. 

9.3.9 SO CF RU:40/ Antenna 


This section describes how to localise an SO CF RU:40/ Antenna fault. 


167


Related RU 


it is present, then go to the related section before handling this RU. 





page 157. 


Reading ARAE Alarm Status 

Note: This step is only valid if ‘‘SO CF EC2:13/ Auxiliary equipment fault’’ 

appears in the OMT. 

1. In the Configuration menu, select Read IDB and click Yes. 

2. In the Maintenance menu, select Monitor. 

3. Select ARAE Alarm Status. 

4. In the Available monitors box, select “Alarm inlets” and click → to add it 

in the Monitors to start box. 

5. Click Start Monitor. 

6. Check the Display Status window to see which ARAE alarm are active. 

7. Check that the ARAE fault is correctly defined in the IDB. 

8. Check the cable to the equipment supervised by the ARAE alarm. 

9. Replace the faulty equipment supervised by that alarm. 

Checking RX Diversity 

10. Ensure that the cell is configured, in the BSC, with the correct diversity 

(RXD). 

11. Confirm that radio cables are connected to the correct RRUs and antennas. 

Performing DTF Test 

12. Disconnect the faulty feeder and locate the fault, by performing a Distance 

To Fault (DTF) test. For more information, see chapter Antenna System 

Tests in this manual. 

13. Replace the faulty equipment identified in the DTF test. 



Note: The RXBP and MCB are not included in the DTF test. 

14. If no faulty equipment was identified, replace the antenna. 

9.3.10 SO CF RU:48/ GPS Receiver 

This section describes how to localise an SO CF RU:48/ GPS Receiver. To 

avoid complete loss of traffic, have the BSC operator configuring PCM as 

backup synchronisation source (SYNCSRC=DEFAULT). 

Related RUs 





• If ‘‘SO CF RU:0/ IXU’’ appears in the OMT, then proceed with Section 9.3.2 




page 157. 


Replacing GPS Receiver 

1. Disconnect the power to the GPS, for example by disconnecting the 

connector in the OVP. Wait a few minutes and then reconnect the power. 

2. Replace the GPS receiver. 

9.3.11 SO CF RU:49/ GPS Receiver DXU Cable 

This section describes how to localise an SO CF RU:49/ GPS Receiver DXU 

cable. To avoid complete loss of traffic, ensure that the BSC operator configures 

PCM as backup synchronisation source (SYNCSRC=DEFAULT). 

Related RUs 






• If ‘‘SO CF RU:0/ IXU’’ appears in the OMT, then proceed with Section 9.3.2 


169




page 157. 


Precondition 

Before starting this procedure, ensure that the GPS system has no fault and is 

properly installed. 

Check IXU GPS Cable 

1. Check that the IXU GPS cable is free from damage. Replace if needed. 

2. Check that the IXU GPS cable is correctly connected to the GPS/AUX 

port on the IXU. 

3. If an EBB-01 is used, then check that the GPS and GPS/AUX cables on the 

EBB-01 are correctly connected. 

Localising Fault on GPS Receiver 

4. Check all cables and equipment (including the GPS receiver) connected to 

the signal chain between the IXU GPS cable and the GPS receiver. 

5. Check the power supply to the GPS by checking the DC LED in the OVP. 

Refer to manufacturer’s documentation to perform fault localisation on the GPS 

receiver. 

Checking DC Supply 

6. Check that both the −48 V LINK cable and the termination block are 

correctly connected, as shown in the figures below. 




Figure 70 Cable Connection Check 

- 48 V 

LINK 

48 V 

48 V_RTN 


Figure 71 Connector Connection Check 


7. Perform a cold reset on the GPS by disconnecting the termination block for 

a few seconds. 

8. Check that both the −48 V LINK cable and the conductor are free from 

damage. Replace if needed. 

171


9. Check that the voltage is −48 V 

DC, using a multimeter. 

9.3.12 SO TRXC RU:0/ RRU 

2 mm 

This section describes how to localise an SO TRXC RU:0/ RRU fault. 

Related RUs 




• If ‘‘SO CF RU:3/ Y link’’ appears in the OMT, then proceed with Section 

9.3.3 SO CF RU:3/ Y Link on page 159 

• If ‘‘SO CF RU:31/ Environment’’ appears in the OMT, then proceed with 

Section 9.3.7 SO CF RU:31/ Environment on page 165 



Two TXs are used when TX diversity is activated, but only the first TX sends the 

alarm. The fault is therefore located in a different RRU. 



page 157. 



Resetting RRU 


1. Press the RRU reset button on the RRU interface panel. 

Restarting RRU 

2. Switch off the RRU, wait for one minute and switch it on again. 

Replacing RRU 

3. Replace the RRU, see Section 9.5.8 RRU Replacement on page 209. 

9.4 Troubleshooting Using the RBS Indicators 


This section describes troubleshooting procedures using the RBS indicators. 

If no faults are detected in the RBS, then the indicators should be in accordance 

with the tables below. 

Table 52 RRU Indicator Status When the RBS is in Operation 


Fault Off 


Local Off 

RF off Off 



RRU temp. Off 


Table 53 IXU Indicator Status When the RBS is in Operation 


Fault Off 


Local Off 





173


Table 53 IXU Indicator Status When the RBS is in Operation 

IXU temp. Off 




If the indicators indicate a fault, see the applicable Section below. 

9.4.1 Corrective Actions for the IXU 

Fault 

If the fault indicator is ON (red), IXU HW fault(s) are detected. Perform the 

following actions step-by-step until the fault ceases: 

• Use the OMT to display fault information, see Section 9.3 Fault Localisation 

Using OMT on page 156. If the OMT cannot be connected, then proceed 

with the steps below 

• Ensure that the flash card has been properly inserted in the IXU 

• Replace the IDB and SW on the flash card, see Section 9.5.1 Flash Card 

Replacement on page 185 

• Replace the flash card, see Section 9.5.1 Flash Card Replacement on 

page 185 

• Replace the IXU, see Section 9.5.3 IXU Replacement on page 193 

Operational 

If the Operational indicator is flashing (green) then configuration activity, initiated 

from the BSC, is in progress. Example: SW download or synchronisation is 

in progress. A SW download from the BSC can take 30 – 60 minutes, and 

synchronization 5 – 10 minutes. 

• Wait until activity is finished, that is until the flashing stops 

Local 

If the Local indicator is ON (yellow) and it is not possible to bring the IXU into 

remote mode, either by using the OMT or by pressing the IXU Local/Remote 

button, then perform the following actions step-by-step until the fault ceases: 

• Reset the IXU 

• Install a new IDB using a OMT, see chapter Site Installation Tests 

• Replace the IXU. See Section 9.5.3 IXU Replacement on page 193 



If the Local indicator is flashing (yellow) and the anticipated BSC communication 

cannot be established, then perform the following actions step-by-step (in close 

cooperation with the BSC operator) until the fault ceases: 


• Ensure that the expected Transmission OK LEDs are ON 

Note: Transmission OK LEDs only indicate that the incoming transmission 

signal is present electrically. The physical transmission connection 

should still be checked. 

• Ensure that the TEI value in the RBS IDB corresponds with the CF TEI value 

set in the BSC for this RBS. Request that the BSC operator checks that no 

other RBSs are using the same CF TEI value on the transmission line 

• Ensure that the following transmission parameters in the RBS IDB are 

correct: 

− Transmission Interface (E1 or T1) 

− CRC-4 

− Spare Bits 

− Sync Source 

− Receiver Sensitivity 

− LBO 

• Ensure that all RBSs, connected on the same transmission line between the 

BSC and this RBS, have Cascade defined as Network Topology in the IDB 

• Ensure that the BSC has a correctly configured A-bis path to the RBS 

• Ensure that the corresponding TRH and RBLT devices in the BSC are 

working 

RBS Fault 

If the RBS fault indicator is ON(yellow), an RBS fault(s) is detected. Perform the 


• Use the OMT to display fault information, see Section 9.3 Fault Localisation 

Using OMT on page 156 

External Alarm 


If the External alarm indicator is on (yellow), external alarm(s) is active in the 

RBS. Perform the following actions step-by-step until the fault ceases: 

• Use the OMT to display fault information. See the following instructions: 

175


1. Start the OMT. 

2. In the Maintenance menu, select Monitor. 

3. Select External Alarms Status. 

4. In the Available monitors box, select Alarm inlets and click → to add it 

to the Monitors to start box. 

5. Click Start Monitor. 

6. Check the Display Status window to see which external alarms are active. 

7. Check that the external alarms are correcly defined in the IDB. 

8. When the faults are corrected, close the Display Status window. 

AC Power On 

If the AC power on indicator is OFF (green), and if AC mains power is supposed 

to be available, then perform the following actions step-by-step until the fault 

ceases or until the IXU power is confirmed: 

For more information about RBS AC mains voltage, see: 




EN/LZT 720 0058 

1. Ensure that the RBS AC mains power switch on the MBU is ON 



power input is either 100 V AC 

to 127 V AC, or 200 V AC to 

250 V AC. 

3. Disconnect the power cable from the IXU and use a multimeter 

to check that the power supply to the IXU is either 100 V AC to 

127 V AC, or 200 V AC to 250 V AC, see table below. 



2 

1 

3 


Not used 

Figure 72 Measuring AC Voltage on IXU Power Cable 



1 DC_P 

2 DC_N 

3 PE 

5 AC_L2 

6 AC_L1 

6 

5 

4. Replace the PIB in the MBU, see Section 9.5.6 PIB Replacement 

on page 203 


DC Power On 



If the DC power on indicator is OFF (green), and if DC supply should be 

available, then perform the following actions step-by-step until the fault ceases, 

or until the IXU power is confirmed: 

For more information about RBS DC supply voltage, see: 




EN/LZT 720 0058 

177


1. Ensure that the RBS DC supply switch on the MBU is ON. 



incoming voltage is between 

−40.5 V DC and −60.0 V DC. 

3. Disconnect the power cable from the IXU and use a multimeter to 

check that the voltage supplying the IXU is between −40.5 V DC 

and −60.0 V DC, see table below. 

2 

1 

3 

Not used 

Figure 73 Measuring Voltage on IXU Power Cable 


Connector 

Pin 

Function 

1 DC_P 

2 DC_N 

3 PE 

6 


5 




Connector 

Pin 

Function 

5 AC_L2 

6 AC_L1 


4. Replace the PIB in the MBU, see Section 9.5.6 PIB Replacement 

on page 203 


IXU Temp 

If the IXU temp indicator is ON (yellow) and the conditions are hot, perform the 


• Ensure that airflow is not obstructed above or below the RRU, or through its 

cooling flanges 

• Install the IXU cabinet at a colder location 

If the IXU temp indicator is ON (yellow) and the conditions are cold, perform the 


Note: The IXU will not start if it is too cold. It can take up to 75 minutes for the 

internal heater to warm up the IXU. 

• Ensure that the IXU is provided with AC Mains power, since the heater in 

the IXU only works when AC Mains power supply is available 

• Install the IXU cabinet at a warmer location 



If a Transmission OK port LED indicator is OFF (green), even though 

transmission is expected, then perform the following actions step-by-step until 

the fault ceases: 

• Ensure that the TIM is properly mounted, and the selector switch for 

transmission impedance selection is set correctly for each port 

• Ensure that the transmission cables have been properly connected to the 

right port in the IXU, and each cable thread connected to the correct inlet 

Note: The order of the ports in the IXU is: A C B D. 

• Ensure that the external transmission equipment is working properly and 

that cables are connected correctly 

179


• Swap the cable thread pairs 

• Perform a transmission test, see chapter RBS Site Integration 

• Check the transmission cable. If it is faulty, replace it 

• Replace the TIM, see Section 9.5.7 TIM Replacement on page 206. 

• Replace the IFB, see Section 9.5.2 IFB Replacement on page 189. 

9.4.2 Corrective Actions on the RRU 

Fault 

If the fault indicator is ON (red), an RRU HW fault(s) is detected. Perform the 


• Use the OMT to display fault information, see Section 9.3.1 Reading Fault 

Status on page 157 

Operational 

If the Operational indicator is flashing (green), then a configuration activity, 

initiated from the BSC or the IXU, is in progress. For example, SW download 

or synchronisation is is progress. A SW download from the BSC can take 

30 – 60 minutes, a SW download from the IXU flash card 5 – 10 minutes and 

synchronization 5 – 10 minutes. 

• Wait until activity is finished, that is until the flashing stops 

Local 

If the Local indicator is ON (yellow) and if it is not possible to bring the RRU into 

remote mode, either by using the OMT or by pressing the RRU Local/Remote, 

then perform the following actions step-by-step until the fault ceases: 

• Reset the RRU 

• Replace the RRU, see Section 9.5.8 RRU Replacement on page 209 

If the Local indicator is flashing (yellow) and BSC communication (though 

expected) is not established, check the Local indicator on the IXU. 

If the Local indicator on the IXU is flashing, see Page 174. 

If the IXU has established a BSC connection, perform the following actions 

step-by-step until the fault ceases: 

• Ensure that the BSC has deblocked the TRXCs for the RBS 



• Ensure that the BSC has a correct configured A-bis path to the RBS [Digital 

Connection Point (DCP)]. 

• Reset the RRU 

• Ensure that the Y link cable is undamaged and properly connected to the 

correct ports, both on the RRU and the IXU 

• Check that each transmission line is connected to the correct ports in both 

the RRU and the IXU 

Note: The IXU could be able to establish BSC connection even if the 

transmission lines have been connected to the ports wrongly. The 

order of the ports in the IXU is: A C B D. 

• Ensure that the RRU is defined in the installed IDB. To create a new IDB, 

see Chapter Site Installation Tests in this manual. 


• Replace the Y link cable, see Section 9.5.11 Y Link Cable Replacement 

on page 217 


• Replace the IXU, see Section 9.5.3 IXU Replacement on page 193 

RF Off 

RRU is not transmitting on any of its radio ports. No TX in the RRU is enabled 

at the BSC. 

AC Power On 


If the AC power on indicator is OFF (green), and if AC Mains power should be 

available, perform the following actions step-by-step until the fault ceases: 

For more information about RBS AC mains voltage, see: 




EN/LZT 720 0058 

• Ensure that the RBS AC supply and RRU power switches on the MBU 

are ON 

• Open the MBU cover and use a multimeter to check that the power input is 

either 100 V AC to 127 V AC, or 200 V AC to 250 V AC 

181



Figure 74 Measuring Incoming AC Voltage 

• Disconnect the power cable from the RRU and use a multimeter to check 

that the power supply to the RRU, is either 100 V AC to 127 V AC, or 200 V 

AC to 250 V AC, see table below. 

2 

1 

3 

6 

5 

Not used 

Figure 75 Measuring Voltage on the RRU Power Cable 





1 DC_P 

2 DC_N 

3 PE 

5 AC_L2 

6 AC_L1 


• Replace the PIB in the MBU, see Section 9.5.6 PIB Replacement on page 

203 


DC Power On 


If the DC power on indicator is OFF (green) and if DC supply should be 

available, perform the following actions step-by-step until the fault ceases: 

For more information about RBS DC supply voltage, see: 




EN/LZT 720 0058 

• Ensure that the RBS DC supply and RRU switches on the MBU are ON 

• Open the MBU cover and use a multimeter to check that the incoming 

voltage is between −40.5 V DC and −60.0 V DC 


Figure 76 Measuring the Incoming DC Voltage 

183


• Disconnect the power cable from the RRU and use a multimeter to check 

that the voltage, supplying the RRU, is between −40.5 and −60.0 V DC. 

See figure and table below. 

2 

1 

3 

6 

5 

Not used 

Figure 77 Measuring the Voltage on RRU Power Cable 



1 DC_P 

2 DC_N 

3 PE 

5 AC_L2 

6 AC_L1 


• Replace the PIB in the MBU, see Section 9.5.6 PIB Replacement on page 

203 


RRU Temp 

If the RRU temp indicator is ON (yellow), and the conditions are hot, perform 

the following actions step-by-step until the fault ceases: 



• Ensure that airflow is not obstructed above or below the RRU, or through its 

cooling flanges 

• Install a fan unit to the RRU 

• Install the RRU cabinet at a colder location 

If the RRU temp indicator is ON (yellow) and the conditions are cold, perform 

the following actions step-by-step until the fault ceases: 

Note: The RRU will not start if it is too cold. It can take up to 75 minutes for 

the internal heater to warm up the RRU. 

• Ensure that the RRU is provided with AC Mains power, since the heater in 

the RRU only works when AC Mains power is available 

• Install the RRU cabinet at a warmer location 

9.5 HW Replacement 

This section describes how to replace faulty units identified in Section Fault 

Localisation. 

9.5.1 Flash Card Replacement 

This section describes how to replace a faulty flash card. 

Loading IDB and SW (Optional) 

This section describes how to load the IDB and SW onto the new flash card. 

1. Create and save an IDB. For more information, see chapter Site Installation 

Tests in this manual. 

2. From the Configuration menu in the OMT, select Load flash card. 

3. In Flash card location, click Browse and select the location of the flash 

card driver. 

4. In Select IDB to use on flash card, click Browse and select the IDB to use. 

5. In Select RBS SW to use on flash card, click Browse and select the 

SW to use. 

6. Click Load. 


185


Taking the RBS out of Operation 

1. Open the sunshields. 

2. Contact the OMC operator to obtain permission to temporarily take 

cells out of service. Wait until the RF off indicator (on all RRU 

interface panels) shows a continous light. 

3. Press the Local/Remote button 

on the IXU to set the RBS to 

local mode. Wait until the local 

indicator on the IXU shows a 

continous light. 

4. Open the two clasps and pull 

the RRU to the left side, to gain 

access to the power switches. 

5. Switch off the AC Mains power 

and DC power supply. 

AC DC 




Replacing Flash Card 


6. Disconnect the AC/DC cable and 

the earth cable from the IXU. 

7. Disconnect the OMT cable. 

8. Open the IXU cover. 


and loosen the cables from the 

IFB. Remove the Y link cable(s). 





187


Note: Make a note of which connectors the Y link cables were connected to. 

10. Loosen the two securing screws 

under the IXU and remove the 

unit. 

11. Remove the cover for the flash 

card. To remove the flash card, 

lift up the release lever and then 

push it in. 

12. Insert the new flash card, reset the lever, then refit the cover. 

Note: The flash card should be preloaded with the correct software and IDB. 

For instructions, see Chapter Site Installation Tests. 

13. Mount the IXU and secure it with the two screws under the IXU. 

14. Connect the Y link cable(s). Ensure the Y link cable(s) are connected 

to the correct connector(s). 

15. Mount the connection frame and connect all cables. Close the IXU 

cover. 

16. Connect the earth cable and the AC/DC cable. 




Putting the RBS into Operation 


17. Switch on the appropriate power supply: AC Mains, DC, or both AC 

and DC. 

18. If new SW has earlier been prepared for loading, it now starts. This 

may take up to 10 minutes. 

19. Close the RRU. 

20. Inform the OMC operator that the applicable cells are to be put into 

service. 

21. Press the Local/Remote button on the IXU, and the RRUs to set the 

RBS to remote mode. Wait until the RF off indicator on the RRU 

interface panel goes off and the Operational indicator lights up. 

22. Close the sunshields. 

Handling Replaced Units 

Unless under contractual warranty, after replacement, the flash card should be 

disposed of locally by the customer according to environmental regulations. Do 

not return the flash card to Ericsson for replacement, repair or disposal. 

9.5.2 IFB Replacement 


This section describes how to replace a faulty IFB. 











189





5. Switch off AC Mains power and 

DC power supply. 

AC DC 




Replacing IFB 




and all cables from the IFB. 

8. Loosen, but do not remove, the Y 

link cable(s) from the cable inlet. 





191


9. Remove the TIM after loosening 

the three screws. 

10. Remove the IFB after loosening 

the seven screws. 

(x 3) 

11. Put back the new IFB, the connection frame, and all cables. 

12. Put back the TIM. Tighten the screws to 1.7 Nm. 

13. Secure the Y link cable(s). 

14. Reconnect the IXU cover. 


15. Switch on the appropriate power supply: AC Mains, DC, or both 

AC and DC. 



service. 

18. Press the Local/Remote button on the IXU to set the RBS to remote 

mode. Wait until the RF off indicator on the RRU interface panel 

goes off and the Operational indicator lights up. 







Unless under contractual warranty, after replacement, the IFB should be 


not return the IFB to Ericsson for replacement, repair or disposal. 

9.5.3 IXU Replacement 


This section describes how to replace a faulty IXU. 











193





5. Switch off AC Mains power and 

DC power supply. 

Replacing IXU 

6. Disconnect the AC/DC cable and 

the earth cable. 

7. Remove the OMT cable. 

AC DC 








and loosen the cables from the 

IFB. Remove the Y link cable(s). 


Note: Make a note of which connectors the Y link cables were connected to. 



195


10. Loosen the two securing screws 

under the IXU, and remove the 

unit. 

11. Remove the cover for the flash 

card. To remove the flash card, 

lift up the release lever and then 

push it in. 

12. Remove the cover for the flash card. Insert the old flash card in the 

new unit and push it down and reset the release lever, ensuring that 

the flash card is in position. 

13. Open the cover of the new IXU and set the switch positions on the 

TIM in accordance with installed transmission cables. 

14. Mount the connection frame delivered with the new IXU into the old 

IXU, and close the cover. 

15. Mount the IXU and secure it with the two screws under the IXU. 

16. Connect the Y link cables. Ensure the Y link cable(s) are connected 

to the correct connector(s). 

17. Mount the connection frame and connect all cables. Close the IXU 

cover. 

18. Connect the earth cable and the AC/DC cable. 






19. Switch on the appropriate power supply: AC Mains, DC or both AC 

and DC. 



service. 






The IXU should be returned to Ericsson for repair with a repair delivery note, 

LZF 084 84 (Blue Tag) attached. Include a clear description of the fault 

found. See Section 9.5.12 Performing Concluding Routines on page 220 for 

instructions on completing a repair delivery note. 

9.5.4 Fan Unit Replacement 


This section describes how to replace a faulty fan unit and how to test the new 

unit. 

Caution! 





197


Replacing Fan Unit 

1. Remove the fan unit cover 

2. Disconnect the fan power cable 

from the RRU. 

3. Loosen the three screws and 

remove the fan unit. 





4. Install the new fan unit and fasten 

the three screws. 

5. Connect the fan power cable to 

the RRU. 

Testing Fan Unit 





Fault 

Operational 

Test 




199


The fan unit performs a self test 

7. Check that the test sequence below is carried out: 




8. Ensure that the indicator status of the fan unit is in accordance with 

the table below: 


Fan Unit Indicator Status 

Fault Off 


7. Reinstall the fan unit cover. 


Unless under contractual warranty, after replacement, the fan unit should be 


not return the fan unit to Ericsson for replacement, repair or disposal. 

9.5.5 MCB Replacement 

This section describes how to replace a faulty MCB. 

Caution! 

Sharp metal edges may exist that can cause cuts to the skin or clothing. Wear 

protective gloves when handling this equipment. 



Taking the RRU out of Service 




the TRXs connected to the RRU out of service. Wait until the RF off 

indicator shows a continous light. 


on the RRU to set the unit to 


indicator on the RRU shows a 


201


Replacing MCB 

4. Remove the MCB protection 

cover under the RRU. 

5. Make a note of the cable positions. 

6. Remove the MCB cable 

connected to the RRU and 

the cables connected to the 

antenna(s). Remove the MCB 

after loosening the two screws, 

then disconnect it. 

Note: The figure shows an example of an MCB configuration. 

7. Mount the new MCB and connect all cables. 

8. Put back the MCB protection cover. 

Note: Ensure that cables are not trapped or damaged by the cover. 


ANT 1 

ANT 2 

TX(/RX) 

MCB 

TX(/RX) 

LOAD 



Putting the RRU into Service 


9. Inform the OMC operator that the TRXs connected to the RRU are to 

be put into service. 

10. Press the Local/Remote button on the RRU to set the unit to remote 





Unless under contractual warranty, after replacement, the MCB is disposed of 

locally by the customer according to environmental regulations. Do not return 

the MCB to Ericsson for replacement, repair or disposal. 

Note: Since the MCB contains Beryllium oxide, BeO, the unit must be handled 

according to applicable regulations for handling of such products. 

9.5.6 PIB Replacement 


This section describes how to replace a faulty Power Interface Board (PIB). 

The PIB is located in the MBU. 


Note: If the PIB is mounted in an extension cabinet, only that cabinet needs 

to be taken out of operation. 



cells out of service. Wait until the RF off indicator shows a continous 

light. 

203




local mode. If it is an extension 

cabinet, press the Local/Remote 

button on the RRU to set the unit 

to local mode. 

4. Switch off the AC Mains power and DC power supply outside the 

cabinet. 

Replacing PIB 




6. Switch off the AC and DC switches on the MBU. 

7. Remove the MBU cover. 


RRU 

AC 

1 

1 

0 

DC 

1 

0 0 



8. Disconnect the upper AC/DC 

cables and the applicable power 

cable at the bottom. 

9. Remove the PIB after loosening 

the securing screws. 


Note: Be careful not to drop the washer attached behind the lower left screw 

when loosening it. 

10. Insert the new PIB and secure it. 

(x8) 

11. Ensure that the ground selector swicth is in the correct position. 

Note: Remember to insert the washer behind the lower left screw. 

12. Reconnect the upper AC/DC cables. 

13. Reconnect the applicable AC/DC cable at the bottom. 

14. Reconnect the protection earth cable. 

15. Refit the cover. 




205


16. Switch on the AC and DC switches. 



18. Switch on the AC Mains power and DC power supply outside the 

cabinet. 

19. Inform the OMC operator that the applicable TRXs are to be put 

into service. 

20. Press the Local/Remote button on the IXU to set the units to remote 

mode. If it is an extension cabinet, press the Local/Remote button 

on the RRU to set the unit to remote mode. Wait until the RF off 

indicator on the RRU interface panel goes off and the Operational 

indicator lights up. 



Unless under contractual warranty, after replacement, the PIB should be 


not return the PIB to Ericsson for replacement, repair or disposal. 

9.5.7 TIM Replacement 

This section describes how to replace a faulty TIM. 






206 EN/LZT 720 0027 Uen R3A 2005-01-12










5. Switch off the AC Mains power 

and DC power supply. 


AC DC 



207


Replacing TIM 


7. Remove the TIM after loosening 

the three screws securing it. 


(x 3) 



8. Mount the new TIM and ensure 

that the switches are set 

correctly. Tighten the screws to 

1.7 Nm. 

9. Close the IXU cover 


10. Switch on the AC and DC switches. 



Port A 

100/ 

120 75 

TIM 

Port A Port C Port B Port D 

100/ 

120 75 

100/ 

120 75 

100/ 

120 75 

100/ 

120 75 

Port C 

100/ 

120 75 

Port B 

100/ 

120 75 


service. 

Port D 

100/ 

120 75 






Unless under contractual warranty, after replacement, the TIM should be 


not return the TIM to Ericsson for replacement, repair or disposal. 

9.5.8 RRU Replacement 


This section describes how to replace a faulty RRU. 

P010154D 

209

















5. Switch off the RRU power. 


RRU 

6. Remove any optional units mounted on the RRU, and, if applicable, 

the upper sunshield. 

Replacing RRU 


7. Disconnect the earth cable. 

8. Remove the protection cover (if 

present). 




211


9. Remove the MCB protection 

cover (if present) under the RRU. 

10. Remove the MCB cable (if 

present) connected to the RRU 

and the cable to the antenna. 

Remove the MCB after loosening 

the two screws and disconnect it. 


ANT 1 

ANT 2 

TX(/RX) 

MCB 

TX(/RX) 

LOAD 




11. Remove the cables belonging to 

the RXBP (if present) from the 

RRU. Remove the RXBP after 

loosening the securing screws. 

12. Disconnect the Y link cable and 

the AC/DC cable from the RRU. 


RXBP 

RX 2 

RXBP 2 

RX 1 RXBP1 



213


13. Loosen the screw under the RRU 

and unhook the RRU. 

14. Hang the new RRU onto the upper hinge. Position the lower hinge 

and tighten the screw. 

15. Connect the earth cable, AC/DC cable and Y link cable. 

16. Mount the RXBP (if required) and connect all cables. 

17. Mount the MCB (if required) and connect all cables. 

18. Fit the protection cover under the RRU. 


19. Switch on the RRU power and close the RRU. 

20. Put back the sunshield and fan unit, if present. 








The RRU should be returned to Ericsson for repair with a repair delivery 

note, LZF 084 84 (Blue Tag) attached. Include a clear description of the fault 

found. See Section 9.5.12 Performing Concluding Routines on page 220 for 

instructions on completing a repair delivery note. 



9.5.9 RXBP Replacement 

This section describes how to replace a faulty RXBP. 












Replacing RXBP 


4. Remove all cables connected to 

the RXBP and remove it after 

loosening the screws securing it. 

5. Mount the new RXBP and connect all cables. 

RXBP 

RX 2 

RXBP 2 

RX 1 RXBP1 


215










Unless under contractual warranty, after replacement, the RXBP should be 


not return the RXBP to Ericsson for replacement, repair or disposal. 

9.5.10 Sunshield Replacement 

This section describes how to replace a faulty sunshield. 

Note: Ericsson does not recommend removing the left and front sunshields. 

1. Remove the faulty sunshield. 

2. If a fan unit is not used, then install the top sunshield and fasten two 

screws to the RRU. If there is no RRU, then fasten the screws to the 

IXU instead.see Figure below. 


P010232D


3. If a fan unit is used, then install the fan unit cover on top of the RRU, 

see Figure below. 

4. Attach the front sunshield to the left sunshield. 

5. Close the front sunshield and attach it to the top shield (fan unit 

cover) and to the right sunshield. 

6. Lock the shield. 



Unless under contractual warranty, after replacement, the sunshield should be 


not return the sunshield to Ericsson for replacement, repair or disposal. 

9.5.11 Y Link Cable Replacement 


This section describes how to replace a faulty Y link cable. 

217















5. Switch off the RRU power. 


RRU 



Replacing Y Link Cable 


6. Remove the faulty Y link cable 

from the RRU by opening the Y 

link cover and disconnecting it. 


RRU 

7. Connect the new Y link cable to the RRU and close the cover. 

8. Open the IXU cover and remove 

the faulty Y link cable from the 

IXU. 

9. Connect the new Y link cable to the IXU and close the cover. 

10. Switch on the RRU power and close the RRU. 


11. Inform the OMC operator that the RRU is to be put into service. 





IXU 



219


9.5.12 Performing Concluding Routines 

This section describes the routines to be completed before leaving the site. 

Note: Ericsson strongly advises that when cleaning up after maintenance 

work on the RBS cabinet, the personnel performing maintenance pay 

particular attention to the environment. Recycle all waste materials that 

can be recycled and sort waste so that it can be disposed of according 

to local regulations. 

Table 59 Objects to be Recycled or Disposed of After Cabinet Maintenance 

Item Sort or recycle? 

Cable insulation from 

crimping, brazing or 

welding 

Packing chips 

Foam 

Polystyrene 

Bubble plastic 

Cable tie clippings 

Sorted with plastics 

Paper and wood Paper recycling 

Waste metal from cable 

ladders 

Pieces of cable 

Nuts, bolts, washers and 

screws 

Recycled or sorted as metals. 

Note: All packing material should be recycled, and shock absorbers disposed 

of, in accordance with local recycling regulations. 

Updating Site Installation Documentation 

1. Check the Site Installation Documentation for deviations from the 

installation. 

2. Update the documents with the changes that apply. 

3. Send to the person responsible for Site Installation Engineering. 

Checking RRU and IXU Indicators 

This section describes how to check that the RRU and IXU indicators show the 

correct status, when the RBS is connected to the BSC and is fully operational. 

The check should be performed before leaving the site. 




Check that the indicators on the RRU(s) and the IXU have the status shown in 

the tables below: 

Table 60 RRU Indicators After Maintenance 


Fault Off 


Local Off 

RF off Off 



RRU temp. Off 


Table 61 IXU Indicators After Maintenance 


Fault Off 


Local Off 





IXU temp. Off 




Performing Final Checks 

This section describes the checklist to be filled in after the maintenance has 

been completed. 

The following checklist is not mandatory, but it is strongly recommended. 

Local procedures and safety regulation must be evaluated and included in 

this checklist. 

221




1. The indicators on the RRU and the IXU are in the approved 

status. 

2. The test equipment has been disconnected from the RBS 

3. The RBS cabinet and the mounting base are free from foreign 

objects. 

4. All cabinets and cables are free of damage. 

5. All EMC sealants and cable penetrations are intact. 

6. Top and bottom of cabinet are free of obstructions (for airflow). 

7. The cabinet has been locked, and the screws have been 

tightened. 

8. All tools have been accounted for. 

9. All paperwork has been completed. 


10 Glossary 



This glossary lists abbreviations and acronyms used in texts dealing with RBS 

2000 cabinets. Some basic terms and acronyms needed for cross-reference 

are included in the list. 

Terms and Abbreviations 

An arrow ⇒ is used to indicate a reference to another entry in the list. 

1–P One-Pair connection with echo cancellation (= two 

wires) 

2–P Two-Pair connection with echo cancellation (= four 

wires) 

AAU Active Antenna Unit 

Abis GSM interface standard defining attributes of the 

communication between the BSC and the BTS. 

AC Alternating Current 

ACB Alarm Collection Board 

ACCU Alternating Current Connection Unit 

ACCU-CU ACCU Connection Unit 

ACCU-DU ACCU Distribution Unit 

A/D converter Analog to Digital converter 

ADM Auxiliary Distribution Module 

AFS AMR Full-rate speech 

AGW Abis Gateway 

AHR AMR Half-rate speech 

Air conditioner One version of the climate unit (Active cooler) 

AIS Alarm Indication Signal 

ALBO Automatic Line Build Out 

ALNA Antenna Low Noise Amplifier 

223


ALPU Antenna Lightning Protection Unit 

AMR Adaptive Multi-Rate 

AO Application Object 

ARAE Antenna Related Auxiliary Equipment 

ARFCN Absolute Radio Frequency Channel Number 

ARP Antenna Reference Point 

ARU Active Replaceable Unit 

ASIC Application Specific Integrated Circuit 

ASU Antenna Sharing Unit 

AT Alphanumeric Terminal 

ATRU Adaptive Transceiver Unit 

ATSR Air Time Slot Resource 

AU Antenna Unit 

AWG American Wire Gauge 

BALUN BALance and UNbalance transformer 

Batt Battery 

BB Battery Box 

BBS Battery Back-up System 

BCCH Broadcast Control CHannel 

Downlink only broadcast channel for broadcast of 

general information at a base station, on a base station 

basis. 

BCS Block Check Sequence 

BDM Battery Distribution Module 

BER Bit Error Rate 

BFF Bit Fault Frequency 

BFI Bad Frame Indication 

The BDM is an IDM with a battery and a local processor. 



BFU Battery Fuse Unit 


Bias injector A unit which injects DC power into the coaxial cable 

to feed the TMA. Isolates the DC power from the RF 

signal fed to the CDU. 

Bm Denotes a full-rate traffic channel 

BPC Basic Physical Channel 

BS Base Station 

Denotes the air interface transport vehicle formed 

by repetition of one time slot on one or more radio 

frequency channels. 

BSC Base Station Controller 

GSM network node for control of one or more BTSs. 

BSCSim Base Station Controller Simulator 

BSIC Base Transceiver Station Identity Code. 

BSS Base Station System 

GSM network logical unit comprising one BSC and 

one or more BTSs. 

BTS Base Transceiver Station 

GSM network unit operating on a set of radio frequency 

channels in one cell. 

burst A portion of digital information, the physical content, that 

is transferred within the time interval of one time slot. 

cabinet The physical housing of a base station 

Cascading Connection of several cabinets by the PCM cable. 

Similar to serial connection. 

CBCH Cell Broadcast CHannel 

This is a downlink only channel used by the GSM 

defined SMSCB function. 

CCCH Common Control CHannel 

Channel combining the following common control 

channels: 

• PCH Paging CHannel 

225


• RACH Random Access CHannel 

• AGCH Access Grant CHannel 

CCU Climate Control Unit 

CDU Combining and Distribution Unit 

CE Conformité Européenne 

cell An area of radio coverage identified by the GSM 

network by means of the cell identity. 

CEU Coverage Extension Unit 

CF Central Functions 

channel The common term channel denotes the virtual 

connection, consisting of physical and logical channels, 

between BSS and MS, during a call in progress. 

Channel 

Combination 

⇒ Logical Channel ⇒ Physical Channel 

A physical channel on an air interface carrying a defined 

set of logical channels. 

Channel group A channel group is a group of dedicated logical 

channels to a specific MS. 

CM Control Module (for TMA) 

CMD Digital Radio Communication Tester 

CME 20 Cellular Mobile Europe 

- CME 20 Ericsson digital land mobile telecommunication 

system based on the GSM standards. 

- CME 201 Ericsson GSM system comprising Ericsson 

equipment only. 

CMRU Central Main Replaceable Unit. 

The RBS is physically connected to the Base Station 

Controller (BSC) via the CMRU. There is only one 

CMRU in each RBS (DXU or IXU). For RBSs without 

DXU or IXU the whole RBS is regarded as CMRU. 

Macro CMRU = DXU 

Micro CMRU = The whole RBS 

RBS 2308 CMRU = IXU 




RBS 2309 CMRU = IXU 

RBS 2109 CMRU = IXU 

CMS 40 Cellular Mobile System 

Ericsson digital land mobile telecommunication 

system based on the Joint Technical Committee (JTC) 

specification for PCS 1900. 

CNU Combining Network Unit 

Compr Compressor 

CON LAPD concentrator 

Config Configuration 

LAPD concentration is used to reduce the number of 

required physical links between the BSC and BTS. 

Co-siting Co-siting is the operation of radio equipment from more 

than one mobile telephone system and/or frequency on 

the same site sharing common equipment. 

CPI Communication and Power Interface 

CPI Customer Product Information 

CPU Central Processing Unit 

CRC Cyclic Redundancy Check 

CS Coding Scheme 

CSA Canadian Standards Association 

CSES Consecutive Severely Errored Second 

CSU Channel Service Unit 

CU Combining Unit (RU in CDU_D) 

CXU Configuration Switch Unit 

dB decibel 

dBm Decibel per 1 milliwatt 

DB DataBase 

DC Direct Current 

227


DCC Digital Cross Connector 

DCCH Dedicated Control CHannel 

DCCU DC Connection Unit 

Dedicated control channels carry signalling data. 

ddTMA dual duplex Tower Mounted Amplifier 

DF Distribution Frame 

DF Disturbance Frequency 

DFU Distribution and Fuse Unit 

DIP DIgital Path 

DM Degraded Minute 

DM Distribution Module 

The name of the function used for supervision of the 

connected PCM lines. 

DMRU Distributed Main Replaceable Unit 

If a Main RU is subordinated to the CMRU, it is said to 

be distributed. 

downlink Signalling direction from the system to the MS. 

DP Digital Path 

DP Distribution Panel 

DPX Duplexer 

DS1 Digital Signal level 1 (1544 kbit/s) 

DSP Digital Signal Processor 

DT Data Transcript 

DTE Data Terminal Equipment 

DTF Distance To Fault 

dTMA duplex TMA 

dTRU double TRansceiver Unit 

DU Distribution Unit (RU in CDU-D) 



DUT Device Under Test 

DX Direct Exchange 

DXB Distribution Switch Board 

DXC Digital Cross Connector 

DXU Distribution Switch Unit 


DXX Ericsson Cellular Transmission System including NMS 

E1 Transmission standard, G.703, a 2048 kbit/s PCM link 

E-GSM Extended GSM 

EACU External Alarm Connection Unit 

EBB External Battery Backup 

EC1 External Condition Map Class 1 

EC2 External Condition Map Class 2 

ECU Energy Control Unit 

EDGE Enhanced Data rate for Global Evolution 

EDGE dTRU EDGE double TRansceiver Unit 

⇒ EDGE 

EDT Electrical Down Tilt 

EEPROM Electrically Erasable Programmable Read-Only Memory 

EIRP Effective Isotropic Radiated Power 

EMC ElectroMagnetic Compatibility 

EMF ElectroMotive Force 

EMF ElectroMagnetic Field 

EMI Electromagnetic Interference 

ENV Environmental 

EOC Embedded Operations Channel 

EPC Environmental and Power Control 

ES Errored Second 

229


ESB External Synchronization Bus 

ESD ElectroStatic Discharge 

ESF Extended Superframe Format 

ESO Ericsson Support Office 

ETS European Telecommunication Standard 

ETSI European Telecommunication Standard Institute. 

EXT External 

FACCH Fast Associated Control CHannel 

Main signalling channel in association with a TCH. 

FCC Federal Communications Commission 

FCCH Frequency Correction CHannel 

FCOMB Filter COMBiner 

FCU Fan Control Unit 

FDL Facility Data Link 

FDU Feeder Duplexer Unit 

FER Frame Erasure Ratio 

FIU Fan Interface Unit 

FS Function Specification 

FSC Field Support Centre 

FU Filter Unit (RU in CDU-D) 

FUd Filter Unit with duplexer (RU in CDU-D) 

FXU Future Expansion Unit 

G01 MO model for RBS 200 

G12 MO model for RBS 2000 

G.703 Physical/electrical characteristics of hierarchical digital 

interfaces, as defined by the ITU. 

G.704 Synchronous frame structures used at 1544, 6312, 

2048, 8448 and 44 736 kbit/s, as defined by the ITU. 



GPRS General Packet Radio Services 

GPS Global Positioning System 

GS General Specification 

GSL GPRS Signalling Link 


GSM Global System for Mobile communications 

International standard for a TDMA digital mobile 

communication system. Originally, GSM was an 

abbreviation for Group Special Mobile, which is a 

European mobile telecommunication interest group, 

established in 1982. 

GSM 800 GSM system 800 MHz (generic) 




HCE HDSL Central Equipment 

HCOMB Hybrid COMBiner 

HDLC High level Data Link Control 

HDSL High bit rate Digital Subscriber Line 

Heat Exchanger A version of the climate unit 

HEU Heat Exchanger Unit 

HISC Highway Splitter Combiner 

HLIN High Level IN 

HLOUT High Level OUT 

HMS Heat Management System 

HTU HDSL Terminating Unit 

Hum Humidity 

HW HardWare 

HWU HardWare Unit 

231


An HWU consists of one or more SEs. An HWU is 

a functional unit within the RBS. The HWU is either 

active (equipped with a processor) or passive (without 

processor). 

I1A Internal Fault Map Class 1A 

I1B Internal Fault Map Class 1B 

I2A Internal Fault Map Class 2A 

IA Immediate Assignment 

IC Integrated Circuit 

ICMI Initial Codec Mode Indicator 

ID Identity 

IDB Installation DataBase 

IDM Internal Distribution Module 

IEC International Electric Commission 

IFB Interface Board 

IF Box Interface Box 

IMSI International Mobile Subscriber Identity 

INIT Initial 

INT Internal 

IOG Input/Output Group 

IOM Internal Operation and Maintenance bus 

IR InfraRed 

IS Interface Switch 

IWD InterWork Description 

IXU Interface and Switching Unit 

JTC Joint Technical Committee 

LAN Local Area Network 

LAPD Link Access Procedures on D-channel 


LBO Line Build Out 

LED Light Emitting Diode 

LLB Line Loop Back 

LNA Low Noise Amplifier 


LAPD is the data link layer (layer 2) protocol used for 

communication between the BSC and the BTS on the 

Abis interface. 

Abis layer 2 is sometimes used synonymously with 

LAPD. 

Local bus The local bus offers communication between a central 

main RU (DXU) and distributed main RUs (TRU and 

ECU). 

Local mode When the RU is in Local mode, it is not communicating 

with the BSC. 

Local/Remote 

switch 


LOF Loss Of Frame 

A switch used by the operator to order the RU to enter 

Local or Remote mode. 

Logical Channel A logical channel represents a specified portion of the 

information carrying capacity of a physical channel. 

GSM defines two major categories of logical channels: 

• TCHs – Traffic CHannels, for speech or user data 

• CCHs – Control CHannels, for control signalling 

⇒ Physical Channel ⇒ Channel Combination 

Logical RU A unit which can be referred to, but is not a single 

physical unit. 

LOS Loss Of Signal 

LVD Low Voltage Directive 

LVF Low Voltage Filter 

MAC Medium Access Controller 

MADT Mean Accumulated DownTime 

magazine A magazine is a reserved space in the cabinet, which 

may hold one or more RUs. 

233


Main RU Contains one or more processors, to which software 

can be downloaded from the BSC. A Main RU is either 

Central (CMRU) or Distributed (DMRU). A Main RU may 

or may not have a direct signalling link to the BSC. 

MBU Mounting Base Unit 

MCB MultiCasting Box 

MHS Modification Handling System 

Ericsson trouble report database 

MiniLink Ericsson’s microwave transmission system. 

MMI Man-Machine Interface 

MO Managed Object 

MR Measurement Receiver 

MRT Mean Repair Time 

MS Mobile Station 

MSC Mobile services Switching Centre 

GSM network unit for switching, routing and controlling 

calls to and from the Public Switched Telephone 

Network (PSTN) and other networks. 

MSTP Mobile Station Test Point 

MTBF Mean Time Between Failure 

MTBCF Mean Time Between Catastrophe Failure 

Multidrop Two or more RBSs connected in a chain to the same 

transmission system. All the relevant time slots are 

dropped out by each RBS. (This function is sometimes 

called cascading.) 

N/A Not Applicable 

NCS National Colour System 

NEBS Network Equipment Building System 

NMS Ericsson Network Management System in DXX 

Nominal Power The nominal power is the power level defined when 

configuring the transceiver. 




N terminal Neutral terminal in an AC mains connection 

NTU Network Terminating Unit 

OL/UL Overlaid/Underlaid 

O&M Operation and Maintenance 

General term for activities such as configuration, 

utilization of channels (frequency bands), cell 

planning, system supervision, hardware and software 

maintenance, subscriber administration, and so on. 

OMC Operation and Maintenance Centre 

OML Operation and Maintenance Link 

Layer 2 communication link for operation and 

maintenance services on Abis. 

OMT Operation and Maintenance Terminal 

The OMT is a PC application for O&M of an RBS. 

Operation Operation is the normal, everyday running of the RBS 

with full functions. 

OPI OPerational Instructions 

OTU Outdoor Terminating Unit 

OVP OverVoltage Protection 

OXU Space for Optional Expansion 

P-GSM Primary GSM 

PA Power Amplifier 

PAM Power Amplifier Module 

Passive RU A passive replaceable unit has a very low level of 

intelligence and is independent of the processor system. 

PBA Printed Board Assembly 

PBC Power and Battery Cabinet 

PC Personal Computer 

PCB Printed Circuit Board 

PCH Paging CHannel 

235


Downlink only subchannel of CCCH for system paging 

of MSs. 

⇒ CCCH 

PCM Pulse Code Modulation 

PCU Packet Control Unit 

PDCH Packet Data Channel 

PE terminal Protective Earth terminal in an AC mains connection 

PFWD Power Forward 

Physical Channel An air interface physical channel carries one or 

more logical channels. A physical channel uses a 

combination of frequency and time division multiplexing 

and is defined as a sequence of radio frequency 

channels and time slots. 

⇒ TDMA frame ⇒ Logical channel 

PIB Power Interface Board 

PIN Personal Identification Number 

PLB Payload Loop Back 

PLMN Public Land Mobile Network 

A network, established and operated by an 

administration or its licensed operator(s), for the specific 

purpose of providing land mobile communication 

services to the public. It provides communication 

possibilities for mobile users. For communication 

between mobile and fixed users, interworking with a 

fixed network is necessary. 

PPE Personal Protective Equipment 

PREFL Power Reflected 

PSA Power Supply Adapter 

PSTN Public Switch Telephone Network 

PSU Power Supply Unit 

PWU Power Unit 



RACH Random Access CHannel 


Uplink only subchannel of CCCH for MS request for 

allocation of a dedicated channel. 

⇒ CCCH 

RAI Remote Alarm Indication 

RAM Random Access Memory 

RBER Radio Bit Error Ratio 

RBS Radio Base Station 

All equipment forming one or more Ericsson base 

station. 

⇒ BTS 

RCB Radio Connection Box 

RD Receive Data 

Remote mode When the RU is in RU Remote mode, a link is 

established between the BSC and the Central Main 

RU (CMRU). 

RF Radio Frequency 

RFCH Radio Frequency CHannel 

A radio frequency carrier with its associated bandwidth. 

RFTL Radio Frequency Test Loop 

RLC Radio Link Control 

RLC Repair Logistic Centre 

RRU Remote Radio Unit 

RSL Radio Signalling Link 

R-state Release state 

RS232 American standard for term/MODEM interconnection. 

rTMA Receiver TMA 

RTN Return 

RU Replaceable Unit 

237


RX Receiver 

An RU consists of one or more HWUs. An RU may be 

replaced by another RU of the same type. The RU is 

the smallest unit that can be handled on site. 

RX1 Receiver antenna branch 1 

RX2 Receiver antenna branch 2 

RXA Receiver antenna branch A 

RXB Receiver antenna branch B 

RXBP Receiver BandPass filter 

RXD Receiver Divider 

RXDA Receiver Divider Amplifier 

RXDP Receiver Distribution Plane 

RXLEV Measure of signal strength as defined in 

GSM:05.08:8.1.4 

RXQUAL Measure of signal quality as defined in GSM:05.08:8.2.4 

SACCH Slow Associated Control CHannel 

SCC Site Cell Configuration 

SCH Synchronization CHannel 

SCU Switching and Combining Unit 

SDCCH Stand alone Dedicated Control CHannel 

SE Supervised Entity 

Main dedicated signalling channel on the air interface, 

mainly used for call locating and establishment. 

SEC Site Extension Configuration 

SES Severely Errored Second 

SF Slip Frequency 

SID Silence Descriptor 

SIG Signalling 

SIM Subscriber Identity Module 




SMS Short Message Service (point to point) 

SO Service Object 

SS Swedish Standard 

A short message, up to 160 alphanumeric characters 

long, can be sent to or from an MS (point to point). 

sTRU single Transceiver Unit 

Sub-RU A sub-replaceable unit is always connected to a 

superior Main RU. This connection is used for example 

for retrieval of the RU identity. A sub-RU normally does 

not have a processor. Note that an RU with a processor, 

which cannot be loaded, is classified as a sub-RU. 

SVS System Voltage Sensor 

SW SoftWare 

SWR Standing Wave Ratio 

SYNC Synchronous 

T1 Transmission standard, G.703, a 1544 kbit/s PCM link 

TA Timing Advance 

A signal sent by the BTS to the MS which the MS uses 

to advance its timing of transmissions to the BTS to 

compensate for propagation delay. 

TC Transaction Capabilities 

TCB Transceiver Control Board 

TCH Traffic CHannel 

The traffic channels carry either encoded speech or 

user data. 

TCH/F Traffic Channel, Full-rate 

TCH/H Traffic Channel, Half-rate 

TCC Transmission Coherent Combining 

TCH SIG Traffic CHannel Signalling 

TD Transmit Data 

TDMA Time Division Multiple Access 

239


Multiplexing of several channels in a common frequency 

band. Each channel is assigned a certain time division, 

a time slot. 

TDMA frame GSM air interface time frame comprising eight time 

slots. 

TEI Terminal Endpoint Identifier 

TEMS TEst Mobile Station 

TF Timing Function 

TG Transceiver Group 

TEI is an identification code carried by a LAPD frame 

as a terminal connection endpoint within a Service 

Access Point (SAP). 

TIM Transmission Interface Module 

Timing bus The timing bus carries air timing information from the 

timing unit in the DXU to the TRUs. 

TLS Terrestrial Link Supervision 

TM Transport Module 

The Transport module is non-RBS equipment belonging 

to the transport network. 

TMA Tower Mounted Amplifier 

TMA-CM Tower Mounted Amplifier – Control Module 

TN Time slot Number 

TN O&M Transport Network Operation and Maintenance (in 

general) 

TRA Transcoder Rate Adapter 

TRS Transceiver System 

TRU Transceiver Unit 

The TRA Unit (TRAU) in BSC performs transcoding 

of speech information and rate adaptation of data 

information. 

TRX Transceiver (combined transmitter and receiver) 

TRXC Transceiver Controller 



TS Time Slot 


A 0.577 ms period (TDMA frame subunit) corresponding 

to 156.25 raw bits of information. The eight time slots of 

each TDMA frame are numbered 0...7. 

⇒ Burst 

TT Total Time 

TU Timing Unit 

TX Transmitter 

TXA Transmitter Antenna A 

TXB Transmitter Antenna B 

TXBP Transmitter BandPass filter 

TXU Radio Transmitter Unit 

UAS Unavailable Seconds 

UAST UnAvailable STate supervision 

UL Underwriter Laboratories 

uplink Signalling direction from the MS to the system. 

UPS Uninterrupted Power Supply 

VCO Voltage Controlled Oscillator 

VSWR Voltage Standing Wave Ratio RF signal measure. The 

quotient between transmitted and reflected voltage. 

X bus The X bus carries transmit air data frames between 

transceivers. 

Y link The interface between the DXU and each DSP System 

in core based TRUs. 

241

E 1 

EN/LZT 720 0458 Uen R3A 


External Battery Backup 01 


This document describes the procedure for installation of the External Battery 

Backup 01 (EBB-01). 


(22)


Contents 



1.1 Target Group 3 

1.2 Revision History 3 

2 Preconditions 4 

2.1 Health and Safety Information 4 

2.2 Tools 4 

2.3 Space Requirements 5 

3 Installation Procedure 6 

3.1 Installing the Wall Bracket (Option) 6 

3.2 Installing the Wallplate 8 

3.3 Installing the Battery Cabinet 11 

3.4 Connecting the Earth Conductor 12 

3.5 Connecting Power 13 

3.6 Connecting the Alarm Cable 17 

3.7 Connecting the GPS Cable 19 


2 (22) EN/LZT 720 0458 Uen R3A

EBB-01 External Battery Backup 01 


1.1 Target Group 

This document describes the procedure for installation of the External Battery 


The target group for these instructions is the installation personnel performing 

the installation of an EBB-01. 

1.1.1 Qualifications for Installation Personnel 

Ericsson recommends that personnel performing the installation procedure 

possess the following skills: 

• Technical college or equivalent education with emphasis on electrical 

engineering 

• Familiarity with the equipment used during the installation process 

• An understanding of technical English 

1.2 Revision History 

1.2.1 R2A to R3A 

1.2.2 R1A to R2A 

1.2.3 R1A 




• Updated the figure for the space requirements 

• Updated the concluding routines 

• Added new safety admonitions 

• Information for connecting the alarm cable was updated. 

This is the first issue of this document. 

3 (22)


2 Preconditions 

This section provides information on health and safety, tools, equipment 

required and conditions to be met before starting this procedure. 

2.1 Health and Safety Information 

2.2 Tools 


Personnel should exercise care when working on or around electrical 

equipment. In addition to this safety information, the specific safety instructions 

for all products involved in the installation procedure should be adhered to. 

Caution! 




Before starting the installation, see Chapter Safety Instructions in: 

RBS 2308, RBS 2309, EBB-01 and 

EBB-06 User’s Guide 

RBS 2109, EBB-01 and EBB-06 


The following tools are required: 

• Tool set with hammer drill 

• Personal Tool Kit, LTT 601 135/1 

For further information on tools, see: 


Catalogue 

EN/LZT 720 0027 

EN/LZT 720 0090 


4 (22) EN/LZT 720 0458 Uen R3A


2.3 Space Requirements 


EBB-01 installation requires a minimum spacing to provide a sufficient working 

area. 

Note: Space for future site expansion must be considered when installing 

an EBB-01 unit. 

500 

Minimum space requirements 

Units of measurement: mm 

400 

300 

EBB 

250 

Figure 1 Space Requirements 


500 

250 

500 


100 225 100 

80 

180 

110 


The EBB-01 cannot be placed more than about 2 m from the RBS because the 

alarm cable and DC cable are 2.5 m in length. 

Note: Before installing the EBB-01, ensure that the cables can be connected 




2.5 m 

Cable length 


Figure 2 Distance Between EBB-01 and the RBS 

5 (22)


3 Installation Procedure 

This section provides instructions for how to install the EBB-01. 

3.1 Installing the Wall Bracket (Option) 

Note: This section is only applicable for walls with very rugged surfaces or 

when the RBS is to be mounted on a pole. 

This section describes how to install the wall bracket. 


The wall bracket is for use as a complement to the mounting interface of the 

wallplate. Typical applications are rough surfaces and other conditions where 

the mounting interface for the wallplate is not flat. The wall bracket must also 

be used if the EBB is to be installed on a pole. 

3.1.1 Installing the Wall Bracket on a Wall (Alternative) 

1. Place the drilling template in the position where the EBB is to be situated, 

with the side marked ‘‘UP’’ pointing to the right. (‘‘UP’’ indicates the 

direction for RBS mounting.) 

2. Use a spirit level to check that the drilling template is placed in a 

horizontal position. 

3. Mark the position of the holes to 

be drilled. 

Note: 

The wall bracket must not be 

used as a drilling template, to 

avoid damaging the rust protection 

surface. 

6 (22) EN/LZT 720 0458 Uen R3A 



UP 


UP 

P010150C


4. Remove the template and drill the holes for the fasteners. 

5. Install the wall bracket and 

secure it into position with all 

screws. 

6. Loosen the four nuts, on which the wall bracket is to be hung, until 

only a few threads remain embedded. 

3.1.2 Installing the Wall Bracket on a Pole (Alternative) 


The wall bracket may be mounted on a horizontal or a vertical pole. 


A 

Figure 3 Holes used for Horizontal or Vertical Poles 

A Holes used for horizontal poles 

B Holes used for vertical poles 

B 

B 

UP 

A 

UP UP 



7 (22)


2. Ensure that the washers are mounted correctly, and then attach the two 

mast-mounting fixtures with the screws and washers. See figure below. 

Note: Ensure that the recess is attached in the correct direction. 

Figure 4 Fastening Mast-Mounting Fixtures to the Wall Bracket 

UP 

Recess 

Recess 



3. Position the wall bracket on the pole and mount the mast-mounting fixtures, 

tightening the screws alternately to avoid bending them. Ensure that the 

washers are mounted correctly. 

Figure 5 Installing the Wall Bracket on the Pole 

3.2 Installing the Wallplate 

P010170C 

This section describes how to install the wallplate on a wall bracket or directly 

onto a wall. 

8 (22) EN/LZT 720 0458 Uen R3A


3.2.1 Installing the Wallplate on a Wall Bracket (Alternative) 

1. Hang the wallplate on the 

four screws situated on the 

wall bracket. Ensure that the 

fastening screws are properly 

fitted in the key holes. 

2. Tighten the four nuts. 

3.2.2 Installing the Wallplate on a Wall (Alternative) 


1. Place the wallplate in the position where the EBB is to be situated. 

2. Use a spirit level to check that the wallplate is placed in a horizontal 

position. 

3. Mark the position of the applicable 

holes to be drilled. 



9 (22)


4. Remove the wallplate and drill 

holes for the fasteners most 

suitable for the wall material. 

5. Insert plugs or expander bolts into each hole. 

6. Insert the screws and tighten them, remembering to leave enough 

threads protruding to hang the wallplate on. 



7. Hang the wallplate on the bolts, applying just enough downward pressure 

to ensure that the screws fit in the keyholes. 

8. Tighten the four bolts. 

10 (22) EN/LZT 720 0458 Uen R3A 



3.3 Installing the Battery Cabinet 


1. Hook the upper part of the battery 

cabinet onto the wallplate. 

2. Secure the battery cabinet with 

the two screws. 



11 (22)


3.4 Connecting the Earth Conductor 

1. Loosen the 10 torx screws on the 

battery cabinet door. 

2. Open the battery cabinet door. 

3. Connect site earthing to the lower-left corner of the battery unit. Use 

an earthing kit, see: 




15 Nm 




4. Connect the other end of the earth cable to the existing lightning system 

close to the equipment. 

Note: If there is no lightning protection system, use the earthing bar, see: 

12 (22) EN/LZT 720 0458 Uen R3A




3.5 Connecting Power 



This section describes how to connect the power cables to the EBB-01. It 

includes instructions for both the DC cables and the AC cable. 

Fuses AC 

Figure 6 Interfaces 


-48 V DC 

AC 

L 

L 

PE 

-48 V DC 

-48 V DC RTN 

-48 V 

-48 V DC RTN 

Danger! 

Link 

-48 V DC 

IXU 

GPS/AUX GPS 

Battery 





Danger! 




13 (22)




The protective earth terminal is located in the EBB, indicated by the earth 

symbol, see figure below. 




strip the conductors. 


14 (22) EN/LZT 720 0458 Uen R3A 





3. Route the cable into the inlet and 

tighten the cable gland. 

Loosening the Interface Box Gland Plate (Optional) 



To simplify the mounting of the cables to the interface box the gland plate can 

be loosened. For example it is easier to mount the cable inlet and the cable 

termination block at ground level instead of at a height, for example on a ladder. 

1. Unscrew the two torx screws. 

2. Loosen the gland plate. 


15 (22)


3.5.1 Connecting AC Mains 

This section describes how to connect the AC Mains cable. 


2. Connect the AC cable to the 


3. Ensure that the protective earth is properly connected. 

3.5.2 Connecting DC Backup Power to RBS 

This section describes how to connect the DC supply cable. 


2. Connect the DC cable to the 


Note: 

The −48 V DC wire is black and 

the −48 V DC_RTN wire is grey. 

For information on how to connect the DC cable to the RBS, see: 



EN/LZT 720 0027 


16 (22) EN/LZT 720 0458 Uen R3A 






3.5.3 Connecting DC Power to MINI-LINK 

EN/LZT 720 0090 

Connect the DC MINI-LINK cable to the right of the DC backup RBS cable. The 

MINI-LINK cable is connected in the same way as the AC cable. 

3.6 Connecting the Alarm Cable 


17 (22)


1. Loosen the D-sub cover plate. 

2. Connect the alarm cable and 

secure it. 

3. Connect the other end of the 

cable to the RBS. 


18 (22) EN/LZT 720 0458 Uen R3A 





3.7 Connecting the GPS Cable 


1. Loosen the GPS cover plate. 

2. Connect the GPS cable and 

secure it. 


19 (22)



1. Make sure that the battery on/off 

switch is on. 

2. Make sure that the AC on/off 

switch is on. 

3. 

Check that the indicators are in 

the following states: 

Fault 

Operational 

Charging 

Check battery 

OFF 

ON 

ON or OFF 

OFF 

Fault 

Operational 

Charging 

Check 

battery 


20 (22) EN/LZT 720 0458 Uen R3A 






4. Close the battery cabinet door and fasten the 10 Torx screws. 

5. Fasten the sunshield’s attached 

safety string to the lower-left side 

of the wallplate. 

6. Hold the sunshield with both 

hands. Push the left side of the 

sunshield towards the EBB until it 

snaps into position on the left side 

of the wallplate. Pull the right side 

of the sunshield outwards and 

then attach it in the same way. 

7. Ensure that the sunshield is properly fitted. 

8. Check with the Base Station Controller (BSC) on the Operation and 

Maintenance Terminal (OMT) that no external alarms remain. 


P011601A 

9. Check the DC power to the RBS. Ensure that the DC power indicator is on. 

10. Check that the DC on/off switch on the RBS is on. 

21 (22)


Ericsson AB 

SE-164 80 Stockholm 

Sweden 

asq.us@ericsson.com 


No part of this document may be reproduced in any form without 

the written permission of the copyright owner. 

The contents of this document are subject to revision without 

notice due to continued progress in methodology, design and 

manufacturing. Ericsson shall have no liability for any error or 

damage of any kind resulting from the use of this document. 

© Ericsson AB 2005 — All Rights Reserved 

22 (22) EN/LZT 720 0458 Uen R3A

E 1 




Maintenance Instructions 

This document describes the procedure for maintenance of the External Battery 



(38)


Contents 







2.2 Tools 5 

3 Fault Identification 7 

4 Fault Localisation 11 

4.1 Search Procedure 11 

5 HW Replacement 15 

5.1 Preparations 15 

5.2 Replacing the Battery 15 

5.3 Replacing the Fuses 17 

5.4 Replacing the DC Backup Cable to the RBS 18 

5.5 Replacing the Alarm Cable 23 

5.6 Replacing the Sunshield 23 

5.7 Replacing the EBB-01 24 


6 Miscellaneous Equipment 33 

6.1 MINI-LINK Equipment 33 

6.2 GPS Equipment 33 

7 Useful Battery-Backup Information 37 

2 (38) EN/LZT 720 0463 Uen R2A




This document describes the procedure for maintenance of the External Battery 





The following qualifications are minimum requirements: 




1.2.1 R1A to R2A 

1.2.2 R1A 




• Updated references to the User’s Guides 

• Added new safety admonitions 


3 (38)



4 (38) EN/LZT 720 0463 Uen R2A




procedures, including tools and safety. 


2.2 Tools 




for all products involved in the installation procedure should be adhered to. 

Caution! 




Before starting the installation, see Chapter Safety Instructions in: 





The following tool set is required: 

• Maintenance Tool Set, LTT 601 137/1 

For further information on tools, see: 

Torque Values 


Catalogue 

EN/LZT 720 0027 

EN/LZT 720 0090 


The recommended torque wrench settings are listed in the table below. 

5 (38)


Table 1 Recommended Torque Wrench Settings 

Dimension Torque (Nm) Remark 

M8 15 General 

M6 6.0 General 

M4 1.5 General 


6 (38) EN/LZT 720 0463 Uen R2A


3 Fault Identification 

Follow this procedure to determine the fault correction action required: 

1. Loosen the right side of the 

sunshield by pulling it outwards. 

Loosen the left side and let the 

sunshield hang in the safety 

string. 

The Fault indicator is illuminated 

to indicate that there is an 

EBB-01 fault. 


2. Use the tables below to identify the appropriate action required to resolve 

the fault. 

Table 2 Action Depending on Indicator Status and Alarm 


Indicator 

Fault ON DC power OFF 

Check battery 

ON 

Operational ON 

Fault OFF 

Battery OFF 


RBS Indicator RBS Alarm Action 

DC power OFF 

DC power OFF 

External: 

• BATTERY 

BACKUP FAULT 

Unit: 

• SO CF RU:14 

External: 

• CHECK BATTERY 

Unit: 


External: 

– 

Unit: 


Follow the instructions in 

Section 5.7 Replacing the 

EBB-01 on page 24. 

Check the battery switch and 

the battery cable. If the fault 

remains, follow the instructions 

in Section 5.2 Replacing the 

Battery on page 15. 


Section 5.4 Replacing the DC 

Backup Cable to the RBS on 

page 18. 

7 (38)


Table 2 Action Depending on Indicator Status and Alarm 


Indicator 

Operational ON DC power ON 

– DC power OFF 

Operational ON DC power ON 

RBS Indicator RBS Alarm Action 

External: 


• BATTERY 

BACKUP FAULT 

• BATTERY 

BACKUP IS 

ABOUT TO END 

Unit: 

– 

External: 

• BATTERY 

BACKUP FAULT 

Unit: 


External: 

• BATTERY 

BACKUP IS 

ABOUT TO END 

Unit: 


Table 3 Action Depending on Visual HW Inspection 

Visual HW Inspection Action 



Alarm Cable on page 23. 


Section 4.1 Search Procedure 

on page 11. 


This alarm does not request 

an action. It informs that less 

than 30 s, and more than 10 s, 

of remaining backup time is 

available at present discharge 

level. 

Sunshield is damaged Follow the instructions in Section 5.6 

Replacing the Sunshield on page 23. 

8 (38) EN/LZT 720 0463 Uen R2A



Table 4 Action for Miscellaneous Equipment 

RBS Alarm RBS Indicator Action 

– Transmission OK OFF Follow the instructions in 

Section 6.1 MINI-LINK 

Equipment on page 33. 

Unit: 

• SO CF RU:48/49 

– Follow the instructions 

in Section 6.2 GPS 

Equipment on page 33. 

9 (38)



10 (38) EN/LZT 720 0463 Uen R2A


4 Fault Localisation 

Follow this procedure to locate the faulty HW unit. 

Precondition 

The RBS has generated at least one of the following alarms: 


• BATTERY BACKUP FAULT 


The alarm BATTERY BACKUP IS ABOUT TO END can also be generated, but 

it does not request an action. It informs that less than 30 s, and more than 10 s, 

of remaining backup time is available at present discharge level. 

4.1 Search Procedure 






11 (38)


3. Switch off the AC on/off switch. 

4. Remove the fuseholder. 

5. Switch on the AC on/off switch. 

6. Use a digital multimeter to check 

the voltage at the fuseholder. 

If the multimeter shows 

110 – 230 V AC, continue 

with the next step. Otherwise, go 

to step 13. 


8. Use the digital multimeter to check the fuses. 

If the fuses are broken, continue with the next step. Otherwise, go to 

step 11. 

9. Remove the two fuses from the fuseholder. 


12 (38) EN/LZT 720 0463 Uen R2A 






10. Snap two new T 6.3 A H 440 V 

fuses (product number 

NGH 324 02/0630) onto the 

fuseholder. 

11. Switch on the AC on/off switch. 

12. Depending on the current situation, do one of the following: 


• If the fault remains and the incoming AC power has not been checked, 

continue with step 13. 

• If the fault remains and the incoming AC power has been checked, 

follow the instructions in Section 5.7 Replacing the EBB-01 on page 24. 

• If the fault is cleared, follow the instructions from step 3 in Section 5.8 

Performing Concluding Routines on page 31. 

13. Use the digital multimeter to check the AC switch to the EBB-01 on the 

AC mains distribution central (if applicable). 

14. Check the fuses on the AC mains distribution central. 

15. Go back and repeat the search procedure from step 1. 

13 (38)



14 (38) EN/LZT 720 0463 Uen R2A


5 HW Replacement 

5.1 Preparations 

This section describes how to replace HW units for the EBB-01. 

1. If the sunshield is not already 

removed, loosen its right side by 

pulling it outwards. Loosen the 

left side and let the sunshield 

hang in the safety string. 




5.2 Replacing the Battery 


The battery should only be replaced if the CHECK BATTERY alarm has been 

activated and the following is true: 

• The battery cable is properly fitted 

• The battery switch is on 



15 (38)


1. Loosen the four torx screws on 

the battery cover. 

Note: 

Steps 2 to 6 must be performed 

within 2 minutes. 

2. Switch off the battery on/off 

switch. 

3. Disconnect the battery cable, 

by pushing to release the cable 

locking device. 



16 (38) EN/LZT 720 0463 Uen R2A 




4. Remove the battery. 

5. Insert the new battery, and connect the battery cable. 

6. Switch on the battery on/off switch. 

7. Fasten the battery cover with the four screws. 

8. Follow the instructions in Section 5.8 Performing Concluding Routines 

on page 31. 

5.3 Replacing the Fuses 


The fuses should only be replaced if the following is true: 

• The AC power to the EBB–01 has been checked 

• All indicators on the EBB-01 are off 

• The DC Power indicator on the RBS is off 


17 (38)



2. Remove the fuseholder. 

3. Remove the two fuses from the fuseholder. 

4. Snap two new T 6.3 A H 440 V 

fuses (product number 

NGH 324 02/0630) onto the 

fuseholder. 


on page 31. 

5.4 Replacing the DC Backup Cable to the RBS 





The DC backup cable to the RBS should only be replaced if the following is true: 

18 (38) EN/LZT 720 0463 Uen R2A



• There is DC power from the EBB-01, but the RBS indicates that the DC 

power is off 

• The DC switch on the RBS is on 

Danger! 




Danger! 




19 (38)




switch. 

3. Switch off the AC power to the RBS. 

4. Disconnect the DC cable at the RBS. See: 





EN/LZT 720 0027 

EN/LZT 720 0090 


20 (38) EN/LZT 720 0463 Uen R2A 





5. Disconnect the DC cable at the 

EBB-01. 

6. Mounting of the DC cable to the 

interface box can be simplified 

by loosening the gland plate. Do 

this by unscrewing the two torx 

screws. 

7. Remove the DC cable from the cable gland. 


strip the conductors from the new 

DC cable. 




21 (38)



10. Route the new DC cable into the cable gland. 

11. Connect the new DC cable to the EBB-01. 

Note: 

The −48 V DC wire is black and the −48 V DC_RTN wire is grey. 

12. If the gland plate has been loosened, fasten it with the two screws. 

13. Tighten the cable gland. 

14. Connect the new DC cable to the RBS. 


on page 31. 




16. Switch on the RBS according to the instructions in chapter Site Installation 

Tests in: 





EN/LZT 720 0027 

EN/LZT 720 0090 

22 (38) EN/LZT 720 0463 Uen R2A


5.5 Replacing the Alarm Cable 

The alarm cable should only be replaced if the following is true: 

• All the EBB-01 alarms are activated at the RBS 

• Only the Operational indicator on the EBB-01 is illuminated 

1. Disconnect the alarm cable at the 

EBB-01. 

2. Disconnect the alarm cable at the 

RBS. 

3. Connect the new alarm cable to the EBB-01 and secure it. 

4. Connect the new alarm cable to the RBS. 


on page 31. 

5.6 Replacing the Sunshield 


The sunshield should only be replaced if one of the following is true: 



23 (38)


• It is not intact 

• There is mechanical damage 

• There is a risk that the sunshield will fall off 

1. Loosen the right side of the 

sunshield by pulling it outwards, 

then loosen the left side. 

2. Remove the safety string from the 

lower-left side of the wallplate. 

3. Take the new sunshield and fasten the attached safety string on the 

wallplate. 




4. Hold the sunshield with both hands. Push the left side of the sunshield 

towards the EBB-01 until it snaps into position on the left side of the 

wallplate. Pull the right side of the sunshield outwards and then attach it 

the same way. 


5.7 Replacing the EBB-01 

The EBB-01 should only be replaced if at least one of the following is true: 

• The BATTERY BACKUP FAULT alarm is activated 

• The Fault indicator on the EBB-01 is illuminated 

24 (38) EN/LZT 720 0463 Uen R2A



• The fuses and the AC mains power to the EBB-01 has been checked, 

but the EBB–01 does not power up 

Danger! 




Danger! 






The protective earth terminal is located in the EBB-01, indicated by the earth 

symbol, see figure below. 



25 (38)




switch. 

3. Disconnect the AC power at the AC mains distribution central. 

4. Loosen the gland plate by 

unscrewing the two torx screws. 

5. Disconnect the AC terminal, and remove the protective earth. 

6. Disconnect the MINI-LINK terminal (if applicable). 


26 (38) EN/LZT 720 0463 Uen R2A 






7. Disconnect the DC backup RBS 

cable. 

8. Disconnect the earth cable at the lower-left corner of the EBB-01. 

9. Disconnect the alarm cable. 

10. Disconnect the Global Positioning System (GPS) cable (if applicable). 



27 (38)


11. Loosen the two screws in the 

lower corners of the EBB-01. 

12. Unhook the upper part of the EBB-01 from the wallplate, and remove 

the EBB-01. 

13. Hook the new EBB-01 onto the 

wallplate. 

14. Secure the EBB-01 with the two screws in the lower corners. 


28 (38) EN/LZT 720 0463 Uen R2A 





15. Loosen the 10 torx screws on the battery cabinet door, and then open 

the door. 

16. Reconnect the site earthing to the 

lower-left corner of the EBB-01. 

17. Remove the terminals for AC and MINI-LINK. 

18. Loosen the gland plate by 

unscrewing the two torx screws. 

15 Nm 

19. Fasten the previously removed gland plate with the two screws. 

20. Connect the AC cable to the dedicated terminal. 

Note: 

Ensure that the protective earth is properly connected. 

21. Connect the MINI-LINK cable to the dedicated terminal (if applicable). 

22. Connect the DC backup RBS cable to the dedicated terminals. 

Note: 

The −48 V DC wire is black and the −48 V DC_RTN wire is grey. 



29 (38)


23. Connect the alarm cable and secure it. 

24. Connect the GPS cable and secure it (if applicable). 

25. Connect the battery cable. 

26. Reconnect the AC power at the AC mains distribution central. 



27. Switch on the RBS according to the instructions in chapter Site Installation 

Tests in: 





EN/LZT 720 0027 

EN/LZT 720 0090 


on page 31. 

30 (38) EN/LZT 720 0463 Uen R2A



1. Make sure that the battery on/off 

switch is on. 

2. Make sure that the AC on/off 

switch is on. 

3. 


Check that the indicators are in 

the following states: 

Fault 

Operational 

Charging 

Check battery 

OFF 

ON 

ON or OFF 

OFF 

Fault 

Operational 

Charging 

Check 

battery 

4. Close the battery cabinet door and fasten the 10 torx screws. 




31 (38)


5. Fasten the sunshield’s attached 

safety string onto the lower-left 

side of the wallplate. 

6. Hold the sunshield with both 

hands. Push the left side of the 

sunshield towards the EBB-01 

until it snaps into position on the 

left side of the wallplate. Pull 

the right side of the sunshield 

outwards and then attach it the 

same way. 


8. Check with the Base Station Controller (BSC) on the Operation and 

Maintenance Terminal (OMT) that no external alarms remain. 




9. Check the DC power to the RBS. Ensure that the DC power indicator is 

illuminated. 

10. Check that the DC on/off switch on the RBS is on. 

32 (38) EN/LZT 720 0463 Uen R2A


6 Miscellaneous Equipment 

6.1 MINI-LINK Equipment 

If the EBB power supplies a MINI-LINK and the RBS indicates transmission 

failure, there is a possibility that the EBB-01 is faulty. 

1. Use a digital multimeter to check the voltage at the MINI-LINK unit. 

If the multimeter shows 0 V DC, continue with the next step. Otherwise, 

use the applicable MINI-LINK manual to locate the fault. 

2. Use the digital multimeter to check the voltage at the MINI-LINK terminals 

on the EBB-01. 

6.2 GPS Equipment 


If the multimeter shows approximately −48 V DC, replace the MINI-LINK 

power cable. Use the same procedure as in Section 5.4 Replacing the 

DC Backup Cable to the RBS on page 18. 

If the multimeter shows 0 V DC, remove the MINI-LINK cable and check 

both the MINI-LINK cable and the MINI-LINK unit for short circuits. 

Resolve the fault by taking the appropriate action, as follows: 

• If the cable is broken, replace it 

• If the MINI-LINK is broken, search it for fault 

• Otherwise replace the EBB-01 

If the EBB-01 is connected to a GPS antenna and the following is true, there 

is a possibility that the GPS equipment is broken: 

• The RBS alarms SO CF RU:48, SO CF RU:49 and GPS RECEIVER are 

activated 

• The Operational indicator on the EBB-01 is illuminated 

33 (38)


1. Disconnect the GPS antenna 

cable from the EBB-01. 

2. Disconnect the GPS/AUX cable 

from the RBS. 

3. Connect the GPS antenna cable to the RBS. 




4. If the transmission starts, use a digital multimeter to check the GPS/AUX 

cable between the EBB-01 and the RBS. 

If the GPS cable is broken, replace it. Otherwise, replace the EBB-01 

according to the instructions in Section 5.7 Replacing the EBB-01 on 

page 24. 

5. If the transmission does not start, search for fault on the RBS and the 

GPS antenna. See: 

GPS Solution Synchronization, 




EN/LZT 720 0435 

EN/LZT 720 0027 

34 (38) EN/LZT 720 0463 Uen R2A





EN/LZT 720 0090 

35 (38)



36 (38) EN/LZT 720 0463 Uen R2A


7 Useful Battery-Backup Information 


When replacing the battery, the level of pre-charging defines the time remaining 

until full backup can be provided. After the battery has been replaced it takes 

up to 24 hours to achieve full backup capacity. 

If the battery has performed a backup, it can take some time before it is cool 

enough to start charging. 

If the battery has performed a full backup (that is, the battery is empty) it takes 

approximately 30 minutes of charging before the EBB-01 can provide backup 

power. 

In very warm environments, the heat can prohibit the battery from charging. 

37 (38)


Ericsson AB 


Sweden 










38 (38) EN/LZT 720 0463 Uen R2A

E 1 





This document describes the procedure for installing the External Battery 

Backup 06 (EBB-06) for the RBS 2308, RBS 2309, and RBS 2109. 


(48)


Contents 







2.2 Preparations 4 

2.3 Documents 5 

2.4 Tools 6 

2.5 Torque Settings 6 

2.6 Space Requirements 6 

3 Installation Procedure 7 

3.1 Unpacking 8 

3.2 Installing the Wall Bracket 10 

3.3 Installing the MBU-02 14 

3.4 Connecting the External Cables 19 

3.5 Installing the Battery Cabinet 30 

3.6 Mounting the Sunshields 41 

3.7 Starting Up the EBB-06 44 

3.8 Concluding Routines 46 

2 (48) EN/LZT 720 0475 Uen R2A




This document describes how to mount and install the External Battery Backup 

06 (EBB-06). 

The target group for these instructions is EBB-06 installation personnel. 

1.1.1 Qualifications for Installation Personnel 

Ericsson recommends that personnel performing the installation procedure 

possess the following: 

• Technical college, or equivalent education, with emphasis on electrical 

engineering 

• Familiarity with the equipment used during installation 

• An understanding of technical English 


1.2.1 R1A to R2A 

1.2.2 R1A 



• Updated the references to the User’s Guides 

• Updated the concluding routines 




This section provides information to be read, and conditions to be met, before 

starting the installation procedure. 

3 (48)



2.2 Preparations 




for all products involved in the installation procedure must be adhered to. 

Caution! 




Before starting the installation, see Chapters System Safety Information and 

Personal Health and Safety Information in: 





Ensure that the following conditions are met: 

• Site access permission received 

EN/LZT 720 0027 

EN/LZT 720 0090 

• Ordered EBB-06, equipment, specified tools, and other necessary facilities 

have been delivered 

• Electrical ducting is ready and AC mains power is available 

• When the cabinet is mounted outdoors, or if the ambient temperature 

changes between hot and cold, it must not be left without power for more 

than 48 hours due to the risk of condensation 

• Earth terminal is available 

• During bad weather conditions it may be necessary to protect the cabinet 

during installation 

• Always use an approved ESD wrist strap to avoid damage to components 

mounted on printed board assemblies 

4 (48) EN/LZT 720 0475 Uen R2A


2.3 Documents 


Figure 1 Connecting the ESD Wrist Strap 

Preparations for Wall-Mounted EBB-06 

These conditions are in addition to those described above. 


• Ensure that the selected wall bolt is suitable for the type of wall material on 

which the cabinet is to be mounted 

• Ensure that the wall surface is even 

Preparations for Pole-Mounted EBB-06 

These conditions are in addition to those described above. 

• The pole must have the required dimensions (60 – 114 mm in diameter) 

Ensure that the following documents are available: 


• Site installation documentation prepared by Installation Engineering 

personnel 




5 (48)


2.4 Tools 

The following tools are required: 

• Tool set with hammer drill 

• Personal Tool Kit, LTT 601 135/1 

2.5 Torque Settings 

The recommended torque wrench settings are listed in the table below. 

Table 1 Recommended Torque Values 

Dimension 

Torque 


M3 110 +/- 7 – 9.7 +/- 0.6 – – 

Notes 

M3 80 +/- 7 – 7.1 +/- 0.6 – Reduced torque for plastic 

covers 

M4 260 +/- 15 – 23.1 +/- 1.3 – – 

M4 170 +/- 15 – 15.1 +/- 1.3 – Reduced torque for captive 

screws 

M5 540 +/- 30 – 47.8 +/- 2.6 – Torque for battery poles 

M6 – 8.8 +/- 0.5 – 6.5 +/- 0.4 – 

M8 – 21 +/- 1.3 – 15.5 +/- 1 – 

M10 – 41 +/- 2.5 – 30.2 +/- 1.8 – 

2.6 Space Requirements 

The EBB-06 has a minimum space requirement to provide sufficient working 

area. 

Note: Space for future site expansion must be considered when installing 

an EBB-06 unit. 


6 (48) EN/LZT 720 0475 Uen R2A


1000 

2850 

990 



290 

575 

640 

715 

Minimum space requriements. Units of measurement: mm 

Figure 2 Space Requirements 

2070 


640 

Optional 

placement 


77 

275 

250 

59 229 137 

The DC cable is 2.5 m / 5 m in length, depending upon the configuration. 

Consequently, the EBB-06 cannot be placed more than 2 m or 4 m from the 

RBS. 

The limit for the total cable length between the RBS and the last EBB-06 

in the chain is 10 m. 


Note: Before installation, ensure that the cabinets are not positioned too far 

apart for the cable length. 



4 m 4 m 

EBB EBB 

5 m 5 m 

4 m 2 m 2 m 

EBB EBB EBB 

5 m 2,5 m 2,5 m 

Figure 3 Maximum Distance Between Cabinets 

3 Installation Procedure 


This section provides instructions for how to install the EBB-06. 


7 (48)


3.1 Unpacking 

Figure 4 Work Process for Installation of EBB-06 

Caution! 





To avoid damage to components due to electrostatic discharge during 

unpacking, avoid contact with the connectors on the battery cabinet. 

1. Unpack the equipment and check that the correct items have been 

delivered. If any equipment is damaged, then make an immediate 

complaint to the supervisor or transport company. 

8 (48) EN/LZT 720 0475 Uen R2A



Figure 5 Unpacking the Standard Equipment 

DC cable 

Batteries 

Fixture 

Figure 6 Unpacking the Optional Equipment 

P004231B 

9 (48)


3.2 Installing the Wall Bracket 

This section describes how to install the wall bracket, which is used as a 

complement to the mounting interface of the wallplate. 


Note: If the installation site is elevated and work cannot be carried out without 

aid, a skylift or scaffold must be used. 

Figure 7 Mounting the Wall Bracket 

3.2.1 Installing the Wall Bracket on a Wall (Alternative) 

35_0331B 

1. Place the wall bracket drilling template in the position where the EBB-06 

is to be situated. 

Figure 8 Marking the Holes 

UP 


10 (48) EN/LZT 720 0475 Uen R2A 

- RBS 2302 

- RBS 2308 

- PBC and EBB 


For Wall Bracket 


For Wall Bracket 

Only for RBS 2308 

mounted without Wall Bracket 




3. Use a pen to mark the required hole positions. 

4. Remove the template, and drill the holes for the fasteners best suited to 

the wall material. 

Note: The wall bracket must not be used as a drilling template in order to 

avoid damaging the rust protection surface. 

5. Mount the wall bracket and secure it in position, using all the screws 

provided. 

Figure 9 Wall Bracket 

UP 

35_0331C 

6. Loosen the four nuts on which the Mounting Base Unit 02 (MBU-02) is to 

be hung, until only a few threads remain in the nut. 

3.2.2 Installing the Wall Bracket on a Pole (Alternative) 


The wall bracket can be mounted on a horizontal or a vertical pole by using 

different holes. 

11 (48)


Figure 10 Wall Bracket on a Horizontal or a Vertical Pole 


A 

Figure 11 Holes Used for Horizontal or Vertical Poles 

A Holes used for vertical poles 

B Holes used for horizontal poles 

2. Ensure that the washers are mounted correctly. See figure below. 

B 

B 

UP 

A 


12 (48) EN/LZT 720 0475 Uen R2A 

P003699A 




Figure 12 Fastening Mast-Mounting Fixtures to the Wall Bracket 

UP 

Recess 


3. Fasten the two clamps with the screws and washers. For the correct torque 

setting, see Table 1 on page 6. 

Note: Ensure that the recess is attached in the correct position. 

Recess 

Figure 13 Fitting the Wall Bracket on the Pole 

4. Position the wall bracket at the correct height on the pole and mount the 

clamps. 

5. Ensure that the washers are mounted correctly. See figure above. 


13 (48)



6. Mount the screws and tighten them, alternating between the left and right 

sides to avoid bending the screws. For the correct torque setting, see 

Table 1 on page 6. 

7. Loosen the four nuts on which the MBU-02 is to be hung, leaving a few 

threads protruding. 

3.3 Installing the MBU-02 

1. Mount the Mounting Base Unit 02 (MBU-02) on the four screws on the 

wall bracket. Ensure that the fastening screws are properly fitted in the 

key holes. 

Figure 14 Mounting the MBU-02 on the Wall Bracket 


2. Use a spirit level to check that the MBU-02 is vertical. If it is vertical, then 

go to step 5, otherwise proceed to the next step. 

3. Remove the MBU-02 from the wall bracket. 

Do not loosen the inner nuts. The lock nuts secure the bolts in the wall 

bracket. 

14 (48) EN/LZT 720 0475 Uen R2A


Locking Nut 

Fastening screws 

Figure 15 Adjusting the Distance Nuts 

Distance Nut 

Inner Nut 

Fastening 

screws 

Locking Nut 

Distance Nut 

Inner Nut 

4. Adjust the vertical inclination using the four distance nuts, then return to 

step 1. 

P003484A 

5. Tighten the four lock nuts. For the correct torque setting, see Table 1 on 

page 6. 

3.3.1 Mounting the Installation Box Door 


Figure 16 Mounting the Installation Box Door 

P005103A 

15 (48)


1. Hook the lower left-hand corner of the door on to the installation box. 

2. Press down the spring locking pin on the upper right-hand corner of the 

installation box. 


3. Insert the installation box door by pushing the upper left-hand corner of the 

door into position. Ensure that the spring locking pin snaps into position. 

4. Connect the earth cable to the installation box door by screwing the torx 

screw into position. 

Figure 17 Connecting the Earth Cable 

3.3.2 Fitting the Fuses 

P005104B 

1. Remove the protection cover by unscrewing the two torx screws and allow 

the cover to hang by the earth wire. 

16 (48) EN/LZT 720 0475 Uen R2A



Figure 18 Removing the Protection Cover 

2. Fit the recommended fuses, according to the table below. 

Table 2 Recommended Fuses 

Voltage Fuses Data Dimension 

100 – 127 V AC Ceramic Slow Blow 8 A T, 250 V (1) 


(1) Fuse rating according to standard EN 60127. 

6.3 x 32 mm 

5 x 20 mm 


17 (48)


Figure 19 Fitting the Fuses 

3. Put back the protection cover. 

230V 

115V 

Note: Ensure that the lens for the optical indicators is not damaged. 

3.3.3 Connecting Earth and Lightning Protection 

Earth 

Figure 20 Connecting Earth and Lightning Protection 

Protect the equipment from lightning as follows: 


18 (48) EN/LZT 720 0475 Uen R2A 

P004136B 

P003168A


1. Route the earth cable through the cable inlet down right at the bottom 

of the rear sunshield. 

2. Connect the earth cable on the MBU-02, using the earthing kit. See: 




3. Connect the other end of the earth cable to the existing lightning protection 

system close to the equipment. 

Note: If there is no lightning protection system, then connect the earth 

cable to the earth collection bar. See: 



3.4 Connecting the External Cables 

This section describes the connections to the EBB-06. 

3.4.1 Opening the Interface Box 



Before the connection procedure can begin, the interface box must be opened. 

1. Loosen the screws securing the interface box on the MBU-02 and pull 

down the interface box. 

19 (48)


Figure 21 Pulling Down the Interface Box 



2. Unscrew the nine torx screws on the interface box cover. Allow the cover 

to hang by the strap. 

20 (48) EN/LZT 720 0475 Uen R2A


Figure 22 Opening the Interface Box 

3.4.2 Connecting AC Mains 


This section describes how to connect the AC mains cable. 

Danger! 





Danger! 




21 (48)


Protective Earth 

A reliable incoming Protective Earth (PE) must be connected to the earth 

terminal when connecting power supply. 

The earth terminal is located in the interface box, indicated by PE and the 

earth symbol. 


Note: A Protective Earth connection is essential. 

Connecting AC 


The gland plate for the AC cable can not be loosened from the interface box, so 

the AC cable must be connected during installation. 

Follow the procedure below to connect the AC mains power cable. 

Note: Ensure the AC mains is switched off before beginning the AC 

installation procedure. 

1. Route the AC mains cable to the interface box, leaving enough cable to 

allow the interface box to be pulled back up into the battery cabinet. 

If a flexible conduit is to be used, replace the AC mains cable inlet (feed 

through) with the flexible conduit and its fastening device. 

22 (48) EN/LZT 720 0475 Uen R2A



Figure 24 Example of Use of Flexible Conduit 

2. Cut the cable to the appropriate length. 

Note: Remember that extra cable is required to allow the interface box to 

be mounted back on the MBU-02. 

Figure 25 Dismantling and Mounting the Cable Inlet 

3. Prepare the cable end. 

4. Adjust the sealing grommet to the cable diameter. 

23 (48)


5. Mount all cable inlet components, see figure above. 

6. Route the cable into the inlet and tighten the cable gland. 

Figure 26 Connecting the AC Mains and Protective Earth 

7. Connect the AC mains cable. 

8. Ensure that the PE is properly connected. 

3.4.3 Routing the DC Power and External Alarm Cables 

Loosening the cable gland plate simplifies the fitting of cables. 

The following cables, if used, are to be routed through the cable gland plate 

before it is put back: 

• RBS 1 



• AUX EQUIP 

• Outgoing external alarm 

• Incoming external alarm 


24 (48) EN/LZT 720 0475 Uen R2A



Note: Ericsson recommends that, whenever possible, cable inlets and 

terminal blocks are fitted and terminated at ground level. This should 

be done before the cabinet is raised to an inaccessible height. 

Routing Cables to RBS 

1. Loosen the cable gland plate by unscrewing the two torx screws. 

Figure 27 Loosening the Gland Plate 

2. Cut the applicable cables to the appropriate length. 


Note: Remember that extra cable is required to allow the interface box to 

be mounted back on the MBU-02. 

3. Route the cables to the RBS, leaving enough cable to allow the interface 

box to be pulled back up into the battery cabinet. 

Routing Cables through Cable Gland Plate 

The following procedure is to be repeated for each cable: 

25 (48)


Figure 28 Assembling the Cable Gland 

1. Prepare the cable end. 

2. Remove the sleeve and plug from the cable gland. Discard the plug. 

3. Fit the sleeve over the cable, and route the cable into the cable gland. 

4. Adjust the cable length, and tighten the sleeve. 



5. Go back to step 1 and repeat the procedure for the next cable, if applicable. 

6. Put back the cable gland plate and secure it with the two screws. 

3.4.4 Connecting the DC Backup Power to RBS 

This section describes the procedure for connecting the −48 V DC backup 

power supply to the RBS. 

Note: Ensure that both the AC and the battery switches are in the OFF 

position before working with the output power connections. 

1. Insert the cable wires into the dedicated terminal, and secure it. 

26 (48) EN/LZT 720 0475 Uen R2A


Figure 29 Connecting the −48 V DC Backup Power Supply 

2. Repeat step 1 for RBS 2 and RBS 3, if applicable. 

3.4.5 Connecting the −48 V DC to MINI-LINK Equipment (Optional) 


This section describes the procedure for connecting power to the optional radio 

link equipment. The EBB-06 can supply −48 V DC to the optional radio link. 

Note: Ensure that both the AC and the battery switches are in the OFF 

position before working with the output power connections. 

1. Loosen the termination block. 

Figure 30 Loosening the Termination Block 

2. Insert the cables for outgoing and incoming external alarms. 

27 (48)


Figure 31 Connecting the −48 V DC Cable to MINI-LINK Equipment 

3.4.6 Connecting the Alarm Cables 


The external alarm output from the EBB-06 is either connected directly to the 

RBS, or indirectly through an EBB-06. 

The external alarm input is connected to the next EBB-06 in the chain. 

RBS EBB-06 EBB-06 

Figure 32 External Alarms for Two EBB-06 Connected to One RBS 


1. Loosen the termination block. Use the same procedure as shown in Figure 

30 on page 27. 

2. Insert the cables for the outgoing external alarm. 

Note: For the last EBB-06 in the chain, the jumper must remain in the two 

positions for the incoming alarm. 

28 (48) EN/LZT 720 0475 Uen R2A


Figure 33 Connecting the Alarm Cable from EBB-06 1 

3. If a second EBB-06 is to be connected, then insert the incoming alarm 

cable from EBB-06 2. 

4. Refit the termination block. 

3.4.7 Closing the Interface Box 


1. Put back the interface box cover by screwing the nine torx screws back 

into position. 

2. Push the interface box upwards. Ensure that the AC cable from the 

installation box is not trapped between the interface box and the MBU-02. 

3. Tighten the two torx screws situated on the MBU-02. 

29 (48)


Figure 34 Closing the Interface Box 

3.5 Installing the Battery Cabinet 



To facilitate mounting, a lifting device can be used. Refer to the RBS Installation 

Instructions for details. 

Note: The lifting device is not dimensioned for lifting the EBB-06 with 

batteries fitted. 

1. If the lifting handle (optional) is to be used, mount it on the battery cabinet. 

Figure 35 Mounting the Lifting Handle 

30 (48) EN/LZT 720 0475 Uen R2A 

P003192A



2. Lift the battery cabinet on to the MBU-02. 

Figure 36 Mounting the Battery Cabinet 

P003171A 

3. Align the left side of the battery cabinet with the MBU-02. Hold the battery 

cabinet a few centimeters above the MBU-02. Ensure that the hooks are 

positioned according to the figure below. 

Hook on the battery cabinet by pushing it against the MBU-02 and lowering 

it on to the hooks. 

30-40mm 

Align 

Figure 37 Mounting the Battery Cabinet on the MBU-02 

4. Ensure that the battery cabinet is properly mounted by checking the 

following: 

P003193A 

31 (48)


• The mounting screws in the installation box are aligned with the holes 

in the cabinet 

• The AC cable from the installation box is not trapped between the 

battery cabinet and the MBU-02 

5. Secure the locking cleats behind the cabinet by turning the torx screws 

clockwise, as far as possible. 

Secure 

(x2) 

Figure 38 Securing the Battery Cabinet 

6. Remove the lifting handle, if it has been used. 


P003482B 

7. Fasten the installation box by turning each of the six torx screws until they 

engage the threads. When all screws have engaged their threads, tighten 

them. 

32 (48) EN/LZT 720 0475 Uen R2A


Figure 39 Fastening the Installation Box 

3.5.1 Connecting Internal Cables 


1. Ensure that the AC power and battery switches are in the OFF position. 

Operational Fault 

Up 

Down 

BATTERY 

Figure 40 Position of the AC Power and Battery Switches 

2. Connect the internal cables in the following order: 

• AC power cable 

• Display cable 

• DC/Alarm cable 

D1 D2 D3 

I 

O 

P003173A 

AC 


33 (48)


Figure 41 Connecting Internal Cables 

3.5.2 Installing the Batteries 

DC/Alarm cable 

connectors 

Display 

cable connector 

AC power 


The batteries must be installed for the EBB-06 to be fully functional. 

The figure below shows the battery installation order. 

WARNING 

CONNECT THIS CABLE LAST 

1 LOAD 

2 LINE 

WARNING 


2 4 

1 3 

1 LOAD 

2 LINE 

Figure 42 Battery Installation Order 

2 

1 

4 

3 


34 (48) EN/LZT 720 0475 Uen R2A 





When connecting the cables, it is important that the cable lugs are properly 

fitted. If fitted incorrectly, then the lugs can break. 

Figure 43 Connecting Cable Lugs to Batteries 

Caution! 




1. Unscrew the 18 torx screws. Ensure that the screws are disengaged, then 

open the EBB-06 door. 

35 (48)


Figure 44 Opening the Battery Compartment 


P003273A 

2. Ensure that the automatic circuit breaker is in the OFF position, according 

to the label. See Figure below. 

Figure 45 Automatic Circuit Breaker in OFF Position 

OFF 


3. On all batteries, remove the precut tape covering the inlet to the ventilation 

hose. 

4. Place the first battery in compartment 1, then connect the cable leading 

from the battery switch panel to the positive (+) pole. 

Note: Ensure that the cable lugs are properly terminated. 

36 (48) EN/LZT 720 0475 Uen R2A



Figure 46 Installing Battery 1 

Note: Remember to fit the protective caps over the battery poles after each 

connection. 

5. Place the second battery in compartment 2, then connect the battery 

jumper cable between battery 1 and battery 2. 

Figure 47 Connecting the First and Second Batteries 

6. Connect the ventilation hose to batteries 1 and 2, and route it to the 

ventilation outlet, down the left side, at the bottom of the battery cabinet. 

37 (48)


Figure 48 Connecting the Ventilation Hose to Batteries 1 and 2 

7. Place the third battery in compartment 3, and the fourth battery in 

compartment 4. Then connect the battery jumper cable between battery 

3 and 4. 


Note: Do not connect the battery jumper cable between batteries 2 and 4. 

Figure 49 Connecting the Jumper Cable Between Batteries 3 and 4 

8. Connect the ventilation hose to batteries 3 and 4. 

38 (48) EN/LZT 720 0475 Uen R2A 




Figure 50 Connecting the Ventilation Hose to Batteries 3 and 4 

9. Connect the negative (−) pole of battery 3. 

Figure 51 Connecting the Negative (-) Pole of Battery 3 

10. Connect the battery jumper cable from battery 2 to battery 4. 


39 (48)


Figure 52 Connecting Jumper Cable Between Batteries 2 and 4 

11. Ensure the following conditions are met: 

• All cables and hoses are in the correct positions, allowing the door 

to be closed 

• All protective caps are fitted over the battery poles 

• The ventilation hoses are not blocked 

Figure 53 Battery Cabinet with All Four Batteries 

12. Set the automatic circuit breaker in the ON position. 

13. Close the EBB-06 door and screw the 18 torx screws back into position. 


40 (48) EN/LZT 720 0475 Uen R2A 


P012501A


3.6 Mounting the Sunshields 


The figure below shows the order in which the sunshields must be fitted. 

Figure 54 Sunshields 

41 (48)


3.6.1 Mounting the Upper Sunshield 

Figure 55 Mounting the Upper Sunshield 

1. Hook on the upper sunshield on the left side, then push it down until it 

snaps into position. 


P003199C 

2. Seal the two holes, intended for the handle, with the supplied screw plugs. 

Note: The plugs are to be screwed, not pressed. 

3.6.2 Mounting the Left Sunshield 

Figure 56 Mounting the Left Sunshield 

1. Tilt the sunshield to the right and hook it on the battery cabinet. 

42 (48) EN/LZT 720 0475 Uen R2A 

P003812A


2. Push the sunshield forward so that it sits clear of the hinges. 

3. Push on the lower-left part of the sunshield until it snaps into position. 

3.6.3 Mounting the Lower Sunshield 


Note: The lower sunshield can only be fitted if the left sunshield is already 

fitted. 

1. Hook the lower sunshield on the left side of the battery cabinet, and push it 

up until it snaps into position. The fasteners are situated in the middle of 

the battery cabinet. 

Figure 57 Mounting the Lower Sunshield 

P003201B 

43 (48)


3.6.4 Mounting the Front Sunshield 

Figure 58 Mounting the Front Sunshield 

1. Mount the short hinge-pin on the left side of the battery cabinet, and the 

long hinge-pin on the right side. 

2. Hook the front sunshield on the hinges and fold down the cover. 

3. Press on the lower left-hand corner so that the spring locking pin snaps 


3.7 Starting Up the EBB-06 

1. Switch on the following switches in the listed order: 

• AC mains power switch 

• AC switch 

• Battery switch 


44 (48) EN/LZT 720 0475 Uen R2A 

P003203A



AC Mains 

Power switch 

1 

0 

BATTERY 

Figure 59 Switches for AC Mains Power, AC, and Battery 

Fault 

AC 

AC switch 

Battery switch 

2. Check that the indicators and the numerical fault code are according to 

the figure below. If not, then see: 

External Battery Backup 06, 


OPERATIONAL FAULT 

D1 D2 D3 

P004197A 

Figure 60 Fully Charged Batteries 

EN/LZT 720 0476 


Note: The display enters power saving mode if no fault occurs or no button 

is pressed within three minutes. Reactivate the display by pressing 

any button. 

3. Secure the upper and lower sunshields by closing the installation box door. 

4. Lock the installation box door, using a key, and fasten the screws. 

45 (48)


Figure 61 Closing the Installation Box Door 

3.8 Concluding Routines 

Before leaving the site, ensure the following: 


Check that: OK 

1 The following switches are in the ON position: 

• AC to EBB-06 

• AC in the installation box 

• Battery in the installation box 

• Automatic circuit breaker inside EBB-06 

2 All cables are connected 

3 The EBB-06 has no alarms 

4 The RBS has no alarms 

5 All power output connections have the correct output power 

6 The RBS connected to the EBB-06 indicates that it has DC 

or battery voltage 

7 The “Operational” LED is on 

8 The sunshields are attached 


46 (48) EN/LZT 720 0475 Uen R2A 

P003166A



Note: The EBB-06 must be powered up within 48 hours of the installation, 

because if the battery cabinet is left without power there is a risk of 

humidity damage to the components in the battery cabinet, if ambient 

temperature changes between hot and cold. 

47 (48)


Ericsson AB 


Sweden 










48 (48) EN/LZT 720 0475 Uen R2A

E 1 





This document describes the maintenance procedure for External Battery 



(65)


Contents 







2.2 Tools 6 

3 Fault Identification 9 

3.1 Control Panel 9 

3.2 Alarm Connected to the RBS 10 

3.3 Cable Connections Overview 11 

4 Fault Localisation 13 

4.1 Optical Indicators 13 

4.2 Fault Code List 15 

4.3 Fault Tracing Hints 21 

5 HW Replacement 25 

5.1 Shutting Down the EBB-06 25 

5.2 Replacing the AC-Surge Board 26 

5.3 Replacing the Batteries 29 

5.4 Replacing the Battery Cabinet 35 

5.5 Replacing the Cables 40 

5.6 Replacing the DCC Board 42 

5.7 Replacing the EMC-IN Board 45 

5.8 Replacing the Incoming AC Mains Fuses 47 

5.9 Replacing the AUX EQUIP −48 V DC Fuse 49 

5.10 Replacing the MBU-02 52 

5.11 Replacing the Sunshields 57 

5.12 Starting Up the EBB-06 60 

6 Preventive Maintenance for the EBB-06 63 

6.1 Sunshields 63 

6.2 Cooling Flanges 63 

6.3 Batteries 63 

7 Performing Concluding Routines 65 

2 (65) EN/LZT 720 0476 Uen R2A




This document describes the maintenance procedure for External Battery 





The following are minimum requirements: 




1.2.1 R1A to R2A 

1.2.2 R1A 




• Updated the references to the User’s Guides 

• Updated the references to the Spare Parts Catalogue 

• Updated the instructions for Temp Sensor Fault 

• Updated the instructions for Low Battery Voltage 


3 (65)



4 (65) EN/LZT 720 0476 Uen R2A




procedures, including safety and tools. 


Personnel must exercise care when working on or around electrical equipment. 

In addition to this safety information, the specific safety instructions for all 

products involved in the installation procedure must be adhered to. 

Caution! 




Before starting the installation, see Chapters System Safety Information and 

Personal Health and Safety Information in the relevant document: 

2.1.1 Electrostatic Discharge 






EN/LZT 720 0027 

EN/LZT 720 0090 

To avoid damage to components mounted on printed board assemblies, always 

use an approved antistatic wrist strap. 

There are two ESD connection points on the EBB-06: 

• One in the interface box 

• One in the installation box, behind the installation box door 

5 (65)


2.2 Tools 

Figure 1 Connection Points for the ESD Wrist Strap 

The following tool set is required: 

• Maintenance Tool Set, LTT 601 137/1 

Torque Settings 



When replacing units, tighten screws and nuts according to the table below. For 

captive screws, battery poles, and plastic covers inside installation boxes and 

interface boxes, the screws must be tightened with a reduced torque. 


Dimension Torque 


M3 110 +/− 7 – 9.7 +/− 0.6 – – 

Notes 

M3 80 +/− 7 – 7.1 +/− 0.6 – Reduced torque for 

plastic covers 

M4 260+/− 15 – 23.1 +/− 1.3 – – 


captive screws 


battery poles 

M6 – 8.8 +/− 

0.5 

– 6.5 +/− 

0.4 

6 (65) EN/LZT 720 0476 Uen R2A 

–



Dimension Torque 


M8 – 21 +/− 

1.3 

M10 – 41 +/− 

2.5 


– 15.5 +/− 

1 

– 30.2 +/− 

1.8 

Notes 

– 

– 

7 (65)



8 (65) EN/LZT 720 0476 Uen R2A


3 Fault Identification 

3.1 Control Panel 

3.1.1 Fault Codes 


This chapter contains information regarding the user interface of the EBB-06. 

Explanations are given on how to read the alarms, and execute commands 

using the EBB-06. 

The control panel is located behind the installation box door. The panel consists 

of optical indicators, a display for fault codes, control buttons, and switches for 

battery and AC. 

Operational Fault 

Up 

Down 

BATTERY 

Figure 2 Control Panel Location in the EBB-06 

D1 D2 D3 

I 

O 

AC 


The alarms consist of a three digit fault code (representing segments D1, D2 

and D3), showing the origin of the fault, the alarm class, and the fault. 

Figure 2 on page 9 shows a display with no faults. 

If no fault occurs or no button is pressed within three minutes, then the display 

enters power saving mode. The display is reactivated when an alarm is 

generated, or if any button is pressed. 

When the power is switched on, the EBB-06 display starts flashing. The power 

up takes about 5 seconds, then the active system status appears on the display. 

With the exception of temperature alarms, all fault codes originate from current 

faults, that is, no fault history is displayed. 

9 (65)


Origin of the Fault (D1) 

Table 2 Fault Codes on Display Element 1 (D1) 

Code Fault Origin 

0 EBB-06 

Alarm Class (D2) 

Table 3 Alarm Codes on Display Element 2 (D2) 

Code Alarm Class 

0 Not classified 

1 Severe 

2 Warning 

Fault (D3) 


If the decimal point in segment D3 is illuminated, then this means that more 

than one alarm is present. Use the Up and Down push buttons to step through 

the fault codes. 

Table 4 Fault Codes on Display Element 3 (D3) 

Code Fault 

0 AC fault (no mains) 

1 AC/DC fault 

2 Temp sensor fault 

3 Heater fault 

4 Battery fault 

5 Battery disconnected 

6 Low battery voltage 

7 Over temperature 

8 Continuous DC overloaded 

3.2 Alarm Connected to the RBS 

The EBB-06 alarm is connected to an RBS external alarm input. All alarms 

transmitted to the RBS are active alarms. Ericsson recommends that external 

alarms are defined in the RBS, according to the table below: 

10 (65) EN/LZT 720 0476 Uen R2A


Table 5 Alarm Connected to the RBS 

Inlet 

Usage 

External 

Alarm 

Type Id Severity Comment 

Breaking (1) Level 2 BATTERY BACKUP FAULT 

Note: The external alarm inputs to the RBS must be defined at installation, 

see: 





EN/LZT 720 0027 

EN/LZT 720 0090 

The external alarm is active if the EBB-06 is shut down, or if one of the following 

alarms is present: 

• Temp sensor fault 

• Heater fault 

• Battery fault 

• Battery disconnected (must be active for 15 minutes before the external 

alarm is triggered) 

• Low battery voltage 

• Over temperature 

3.3 Cable Connections Overview 


The schematic diagram below shows the cable connections, including the 

options, depending upon the configuration at a particular site. 

11 (65)


Figure 3 EBB-06 Cable Connections 


12 (65) EN/LZT 720 0476 Uen R2A


4 Fault Localisation 

This section describes how to identify a fault, using optical indicators, fault 

codes, and fault tracing hints. 

To access the optical indicators and the fault codes, the installation box door 

must be opened. This is done as follows: 

1. Loosen the eight screws securing the installation box door. 

2. Unlock the installation box door, using the key, then open the door. 

Figure 4 Sealing Screws and Key for the Installation Box Door 

4.1 Optical Indicators 


This section explains the different combinations of illuminated and not 

illuminated indicators for the ‘‘Fault’’ and ‘‘Operational’’ optical indicators. 

Both Operational and Fault On 

The red "Fault" and green 

"Operational" LEDs indicate a 

warning. If both LEDs are illuminated, 

then one or more units require service 

or replacement. See Section 4.2 Fault 

Code List on page 15, to solve the 

problem. 


P003166A 

P004240A 

13 (65)


Operational On and Fault Off 

No alarms are active if only the green 

"Operational" LED is illuminated. 

Both Operational and Fault Off 

If neither of the two LEDs "Operational" 

or "Fault" are illuminated, then there 

are three possible causes: 

• The battery cabinet has no 

power, and the batteries have 

been discharged. 

Check that 115/230 V is 

present in the battery cabinet by 

measuring the internal AC cable. 

• Fuses in the installation box 

(behind the protective cover) are 

broken, and the batteries have 

been discharged. 

Switch off the Mains power 

switch and the AC switch on the 

battery cabinet. Measure the 

resistance of the fuses, using a 

multimeter, to check that they 

are not broken. (The resistance 

must be low.) 




14 (65) EN/LZT 720 0476 Uen R2A 

230V 

115V 

V 

V 

P004239A 

P004241A 

P004270A 

P003944B


• The display cable is faulty. 

4.2 Fault Code List 


If 115/230 V is present in the 

battery cabinet, check that 

the display cable is properly 

connected and functional. 

This is done by measuring 

the resistance from pin to pin. 

Replace the cable if necessary, 

see Section 5.5 Replacing the 

Cables on page 40. 

0 

1 2 3 4 5 6 

7 8 9 10 11 12 

1 2 3 4 5 6 

7 8 9 10 11 12 

This section presents the fault codes, and the procedures used to find faulty 

units. 

Note: If no fault occurs, or no button is pressed within three minutes, then 

the display enters power saving mode. Reactivate the display by 

pressing any button. 

Operational 

No alarms are present. 


D1 D2 D3 

P004271A 

P004197A 

15 (65)


AC Fault 

115/230 V is not present in the battery 

cabinet. 

1. Check that 115/230 V is present 

at the incoming AC terminal 

block, on the AC-Surge board 

in the interface box, using a 

multimeter. 


at the upper AC terminal block, 

on the AC-Surge board, to verify 

that the AC-Surge board is not 

faulty. 

For more information, see 


AC-Surge Board on page 26. 


at the incoming AC terminal 

block, on the EMC-IN board, to 

verify that the cables are not 

faulty. 



EMC-IN Board on page 45. 


V 

D1 D2 D3 


16 (65) EN/LZT 720 0476 Uen R2A 

V 

V 

P004017A 

P004244A 

P004246A 




4. Confirm that both the Mains 

power switch and the AC switch 

on the EBB-06 are ON. 

AC Mains 

Power switch 

1 

BATTERY 

0 

Fault 

AC 

AC switch 

Battery 

switch 


5. Switch off the Mains power 

switch and the AC switch on the 

230V 

115V 

EBB-06. Measure the resistance 

of the fuses in the installation 

box (behind the protective 

cover), using a multimeter, to 

check that they are not broken. 

(The resistance must be low.) 

Switch the power back on if 

there is no fault. P003944B 


at the connector to the internal 

AC cable, to verify that the 

EMC-IN board is not faulty. 



EMC-IN Board on page 45. 

V 

V 

P004245A 

17 (65)



at the connector of the internal 

AC cable, attached to the battery 

cabinet, to verify that the internal 

AC cable is not faulty. If voltage 

is present, then replace the 

battery cabinet. See Section 5.4 

Replacing the Battery Cabinet 

on page 35. 

AC/DC Fault 

1. Replace the battery cabinet. 

See Section 5.4 Replacing the 

Battery Cabinet on page 35. 

Temp Sensor Fault 

1. Check the temperature sensors 

for damage. The sensors are 

located on the negative (−) pole 

of the lower-right battery, and on 

the heater in the middle of the 

battery cabinet (see the figure 

under alarm 023). 

2. Reset the cabinet. If the fault 

goes away, it is an intermittent 

fault. Replace the cabinet. State 

“intermittent fault” on the blue 

tag. 

3. If the fault remains, then replace 

the battery cabinet. See Section 


Cabinet on page 35. State 

“constant fault” on the blue tag. 


V 

V 

D1 D2 D3 


D1 D2 D3 


18 (65) EN/LZT 720 0476 Uen R2A 

P004270A 

P004018A 

P004019A



Heater Fault 

1. Check that the cables to the 

heater in the battery cabinet are 

not short circuited. 

2. Restart the EBB-06. 

3. If the cables are intact, then 

replace the battery cabinet. 



Battery Fault 

Defective batteries or charging circuits 

are malfunctioning. 

1. Replace the batteries. See 


Batteries on page 29 

2. Replace the battery cabinet. 




D1 D2 D3 


D1 D2 D3 

P004020A 


P004021A 

19 (65)


Battery Disconnected 

1. Check that all battery cables 

are properly connected and not 

damaged. 

2. Check that the automatic circuit 

breaker is in the ON position. 

3. Check that the battery switch in 

the installation box is in the ON 

position. 

4. Check that the display cable 

is properly connected and not 

damaged. 

5. If the fault remains, then replace 

the battery cabinet. See Section 


Cabinet on page 35. 

6. If the fault remains, replace 

MBU-02. See Section 5.10 

Replacing the MBU-02 on page 

52. 

Low Battery Voltage 

The battery cabinet is in backup mode 

and running out of battery power. 

1. Reconnect the AC mains supply. 

Overtemp Active 

The ambient temperature is above 

45 C. 

1. If the ambient temperature 

is normal, then replace the 

battery cabinet. See Section 5.4 

Replacing the Battery Cabinet 

on page 35. 


D1 D2 D3 


D1 D2 D3 


D1 D2 D3 


20 (65) EN/LZT 720 0476 Uen R2A 

P004022A 


P004023A 

P004024A


Continuous DC Overloaded 

1. Check that the RBS outlets are 

not loading the battery cabinet. 

2. Check that the AUX equipment 

outlet is not overloaded. 

3. Start up the EBB-06. See 

Section 5.12 Starting Up the 

EBB-06 on page 60. 

• If no alarm appears, then put 

the site into service according 

to the EBB-06 Installation 

Instruction 

• If alarm appears, then replace 

the battery cabinet. See 



4.3 Fault Tracing Hints 


This section describes how to handle faults that are not indicated by the EBB-06. 

No DC Power to RBS and No Alarms Generated in EBB-06 

1. Check the power on the RBS outlet in the EBB-06 interface box. 

• If the power is within the range −46 to −59 V DC, 

then check that the cable at the RBS is properly 

connected and not damaged. 

• If the power is not within the range −46 to −59 V DC, 

then continue with the next step. 

2. Check that the DC/alarm cable is properly connected and not damaged. 

• If the DC/alarm cable is properly connected and not 

damaged, then replace the battery cabinet. See 

Section 5.4 Replacing the Battery Cabinet on page 

35. 

• If the DC/alarm cable is faulty, then replace it. See 

Section 5.5 Replacing the Cables on page 40. 

No DC Power to AUX Equipment and No Alarms Generated in EBB-06 

1. Check the power to the AUX EQUIP outlet in the EBB-06 interface box. 

21 (65)


• If the power is within the range –46 to –59 V DC, 

then check that the cable at the AUX equipment is 

properly connected and not damaged. 

• If the power is not within the range –46 to –59 V DC, 

then continue with the next step. 


2. Measure the resistance of the fuse in the interface box, using a multimeter. 

(The resistance must be low.) 

Figure 5 Location of the Fuse in the Interface Box 

• If the fuse is broken, then replace it. See Section 

5.9 Replacing the AUX EQUIP −48 V DC Fuse on 

page 49. 

• If the fuse is not broken, then continue with the next 

step. 

3. Check that the DC/alarm cable is properly connected and not damaged. 

• If the DC/Alarm cable is properly connected and 

not damaged, then replace the battery cabinet. See 

Section 5.4 Replacing the Battery Cabinet on page 

35. 

• If the DC/Alarm cable is faulty, then replace it. See 

Section 5.5 Replacing the Cables on page 40. 

External Alarm Behaviour Not as Expected in RBS 

1. Check that the cables in the interface box are properly connected and 

functioning. 


2. For the last EBB-06 in chain, check that the jumper is fitted in the positions 

for incoming alarm. 

22 (65) EN/LZT 720 0476 Uen R2A



3. In the RBS, ensure that the external alarm cable is properly connected. 

4. Ensure that the RBS IDB is correctly configured, according to Table 5 on 

page 11. 

23 (65)



24 (65) EN/LZT 720 0476 Uen R2A


5 HW Replacement 

This section describes how to replace hardware units in the EBB-06. 

5.1 Shutting Down the EBB-06 


The EBB-06 must be shut down before any component is replaced. 

Danger! 




Note: Dangerous voltages remain on the AC-Surge board, in the interface 

box, after AC power to the EBB-06 is switched off at the AC power 

switch. Dangerous voltages also remain on the EMC-IN board, in the 

installation box, up to the power switch. 

1. Loosen the eight screws securing the installation box door. Unlock the 

door, using the key, then open the door. 

Figure 6 Opening the Installation Box Door 

2. Switch off the following switches in the listed order: 

P003166A 

25 (65)



• AC switch 

• AC Mains Power switch 

Note: When turning off the AC Mains Power switch, ensure that only the 

EBB-06 is switched off. 

AC Mains 

Power switch 

1 

0 

BATTERY 

Figure 7 Switches for Battery, AC, and AC Mains Power 

5.2 Replacing the AC-Surge Board 

Fault 

Danger! 

AC 

AC switch 







1. Follow the instructions in Section 5.1 Shutting Down the EBB-06 on page 

25. 

2. Loosen the screws securing the interface box on the MBU-02, and pull 

the box down. 

26 (65) EN/LZT 720 0476 Uen R2A



Figure 8 Loosening the Interface Box 


3. Unscrew the nine torx screws on the interface box cover. Allow the cover 

to hang by the strap. 

27 (65)


Figure 9 Loosening the Interface Box Cover 

4. Check that there is no incoming AC power, using a multimeter. 

Caution! 






5. Connect the ESD wrist strap to the ESD connection point in the interface 

box. See Figure 1 on page 6. 

6. Disconnect the AC In and the AC Out terminal blocks connected to the 

AC-Surge board. 

Note: Do not remove the Protective Earth (PE) connection. 

7. Remove the AC-Surge board by unscrewing the four torx screws. Save the 

washer for later use. 

28 (65) EN/LZT 720 0476 Uen R2A


Figure 10 Removing the AC-Surge Board 

8. Mount the new AC-Surge board, using the washer and the four torx screws. 

9. Put back the AC In and AC Out terminal blocks. 

10. Remove the ESD wrist strap. 

11. Put back the interface box cover by screwing the nine torx screws back 


12. Push the interface box upwards. Ensure that the AC cable from the 

installation box is not trapped between the interface box and the MBU-02. 

13. Follow the instructions in Section 5.12 Starting Up the EBB-06 on page 60. 

5.3 Replacing the Batteries 


Caution! 




Removing the Batteries 



29 (65)


Figure 11 Opening the Installation Box Door 

2. Switch off the battery switch. See Figure 7 on page 26. 


P003166A 

3. Remove the front sunshield by pushing the spring locking pin located in the 

lower left hand corner, and carefully bending the right top side off the hinge. 

Figure 12 Location of the Spring Locking Pin 

4. Unscrew the 18 screws securing the EBB-06 door, using a torx 20 

screwdriver. Ensure that the screws are disengaged, then open the door. 

30 (65) EN/LZT 720 0476 Uen R2A




5. Switch off the automatic circuit breaker. 

Figure 14 Automatic Circuit Breaker in OFF Position 

OFF 

P003273A 


31 (65)


WARNING 


1 LOAD 

2 LINE 

WARNING 


2 4 

1 3 

1 LOAD 

2 LINE 

Figure 15 Battery Position Overview 

2 

1 

6. Disconnect the battery jumper cable from between the batteries in 

compartments 2 and 4. 

7. Disconnect the battery jumper cable from between the batteries in 

compartments 3 and 4. 

8. Disconnect the negative (-) pole of the battery in compartment 3. 

9. Remove the battery from compartment 4. 


11. Remove the ventilation hoses from the batteries. 

4 

3 


32 (65) EN/LZT 720 0476 Uen R2A 




Figure 16 Removing the Ventilation Hoses 

12. Disconnect the battery jumper cable between the batteries in compartments 

1 and 2. 

13. Disconnect the positive (+) pole of the battery in compartment 1. 



Installing the Batteries 

Note: Ericsson recommends that all four batteries be replaced at the same 

time. 

Batteries must be approved according to the Spare Parts Catalogue. 

See: 

Spare Parts Catalogue RBS 2308, 

RBS 2309, RBS 2109, EBB-01 and 


EN/LZT 720 0028 

1. Remove the precut tape covering the inlet to the ventilations hose on all 

batteries. 

2. Place the first battery in compartment 1, and connect the cable from the 

battery switch panel to the positive (+) pole. 

Note: Ensure that the cable lugs are properly connected. 

33 (65)


Figure 17 Connecting Cable Lugs to Batteries 


3. Place the second battery in compartment 2, and connect the battery jumper 

cable between battery 1 and battery 2. 

4. Connect the ventilation hose to batteries 1 and 2, and route it to the 

ventilation outlet located in the lower left side of the battery cabinet. 

5. Place the third battery in compartment 3, and the fourth battery in 

compartment 4. Connect the battery jumper cable between batteries 3 

and 4. 

Note: Do not connect battery jumper cable between batteries 2 and 4. 

6. Connect the ventilation hose to batteries 3 and 4. 

7. Connect the negative (-) pole of battery 3. 

8. Connect the battery jumper cable from battery 2 to battery 4. 

9. Ensure that the following conditions are met: 

• All cables and hoses are in the correct positions, allowing the door to 

be closed without trapping cables 

• All protective caps are fitted to cover the battery poles 

• The ventilation hoses are not blocked 

10. Set the automatic circuit breaker to the ON position. 

11. Close the EBB-06 door and screw the 18 torx screws back into position. 

Note: Ensure that no cables are trapped. 

12. Put back the front sunshield. 


34 (65) EN/LZT 720 0476 Uen R2A


5.4 Replacing the Battery Cabinet 


A lifting device can be used when replacing the cabinet, see: 





EN/LZT 720 0027 

EN/LZT 720 0090 

Note: The lifting device is not dimensioned for the EBB-06 with batteries 

installed. 


25. 

2. Remove the sunshields (front, lower, left, and upper), see Section 5.11 

Replacing the Sunshields on page 57. 


4. Disconnect the following cables from the battery cabinet: 

• DC Power cable 

• AC Power cable 

• Alarm cable 


35 (65)



connectors 

Display 


AC power 


Figure 18 Loosening the DC/Alarm Cable, Display Cable, and AC Power 

Cable 

5. Free the installation box from the cabinet, by loosening the six screws. 

Figure 19 Loosening the Installation Box 



P003173A 

6. Remove the batteries according to Section 5.3 Replacing the Batteries on 

page 29. Ignore Step 3 on page 30 since the front sunshield has already 

been removed. 

36 (65) EN/LZT 720 0476 Uen R2A



7. Loosen the two screws holding the battery cabinet. 

Note: The two locking parts may become jammed together, causing the 

screw to move downwards, instead of the wedge part moving up. 

Correct this by striking the back of the torx screwdriver with the 

hand, when the screw has been screwed down approximately 

20 mm. 

Unsecure 

Secure 

Figure 20 Loosening the Battery Cabinet 

P003172A 

8. If the lifting handle (optional) is to be used, then mount it at the top of the 

cabinet. 

37 (65)


Figure 21 Mounting the Optional Lifting Handle 

9. Remove the cabinet by lifting it up and away from the MBU-02. 

Figure 22 Unhooking the EBB-06 

P003192A 

10. Hook on the new battery cabinet by pushing it against the MBU-02 and 

lowering it on to the hooks. Ensure that the battery cabinet is properly 

mounted by verifying the following: 

• The mounting screws in the installation box correspond to the holes 

in the cabinet 

• The AC cable from the installation box is not trapped between the 

battery cabinet and the MBU-02 

11. Secure the locking cleats behind the cabinet by turning the torx screws 

clockwise until they stop. 


38 (65) EN/LZT 720 0476 Uen R2A 

P003800A



Secure 

(x2) 

Figure 23 Securing the Battery Cabinet 

12. Remove the lifting handle, if used. 

P003482B 

13. Unscrew the 18 screws securing the EBB-06 door, using a torx 20 

screwdriver. Ensure that the screws are disengaged and open the door. 


14. Install the batteries according to steps 1 – 11 on Page 33. 

P003273A 

39 (65)



15. Fasten the installation box by turning each of the six torx screws until they 

engage in the threads, then tighten them. 

Figure 25 Fastening the Installation Box 

P003173A 

16. Reconnect the DC/Alarm Cable, Display Cable, and the AC Power Cable to 

the cabinet. 

17. Put back the sunshields according to Section 5.11 Replacing the 

Sunshields on page 57. 


5.5 Replacing the Cables 

Danger! 




40 (65) EN/LZT 720 0476 Uen R2A



Figure 26 Overview of the Cables 


connectors 

Display 


AC power 




25. 


Caution! 




3. Connect the ESD wrist strap to the ESD connection point in the installation 


4. Disconnect the faulty cable and connect the new cable. 

5. Disconnect the ESD wrist strap. 


41 (65)


5.6 Replacing the DCC Board 



25. 

2. Loosen the screws securing the interface box on the MBU-02 and pull 

the box down. 


3. Open the cover of the interface box by removing the nine torx screws. 

42 (65) EN/LZT 720 0476 Uen R2A 






Caution! 







6. On the DCC board, remove the three orange terminal blocks. 

7. On the DCC board, note the cable positions of the top left eight cables. 

Then unscrew the cable connectors and remove the cables. 

8. On the DCC board, note the cable positions of the RBS -48 V DC cables. 

Then unscrew the cable connectors and remove the cables. 

9. Remove the cable gland plate by unscrewing the two torx screws. 

43 (65)


Figure 29 Loosening the Cable Gland Plate 

10. Remove the DCC board by unscrewing the eight screws. 

Figure 30 Removing the DCC Board 

11. Fit the new DCC board and tighten the screws. 

12. Put back the cable gland plate. 

13. Reinstall the cables to the DCC board. 

14. Reconnect the terminal blocks. 



44 (65) EN/LZT 720 0476 Uen R2A 




16. Put back the interface box cover and secure it in position with the nine 

torx screws. 

17. Push the interface box up and secure it in the upper position with the two 

torx screws. 


5.7 Replacing the EMC-IN Board 



25. 

2. Remove the protection cover by removing the two torx screws, and allow 




Caution! 





45 (65)




5. Disconnect the following cables connected to the EMC-IN board: 


• AC Power cable 

• Incoming AC cable 

Figure 32 Loosening the Display Cable and the AC Power Cable 

Figure 33 Loosening the Incoming AC Cable 

Display cable 

AC power cable 


46 (65) EN/LZT 720 0476 Uen R2A 

P003693A 

P012606A


6. Remove the DC/Alarm cable from the three clamps on the EMC-IN board. 

7. Remove the EMC-IN board by removing the seven screws and the 

stand-off. 

Figure 34 Removing the EMC-IN Board 


8. Fit the new EMC-IN board and tighten the screws and the stand-off. Ensure 

that the clamps are refitted according to the figure above. 

9. Refit the DC/Alarm cable to the three clamps on the EMC-IN board. 

10. Reconnect the cables to the EMC-IN board. 

11. Move the fuses from the old EMC-IN board to the new EMC-IN board. 


13. Refit the protective cover, securing it with the two torx screws. 

Note: Ensure that the lens on the optical indicators is not damaged. 


5.8 Replacing the Incoming AC Mains Fuses 



25. 

2. Remove the protection cover by removing the two torx screws, and allow 


47 (65)




Caution! 








5. Replace faulty fuses with new fuses, according to the table below. 

Table 6 Recommended AC Mains Fuses 

Voltage Fuses Data Dimension 




6.3 x 32 mm 

5 x 20 mm 

48 (65) EN/LZT 720 0476 Uen R2A


Figure 36 Replacing AC Mains Fuses 


7. Refit the protective cover by securing the two torx screws. 

230V 

115V 

Note: Ensure that the lens on the optical indicators is not damaged. 

P004136B 


5.9 Replacing the AUX EQUIP −48 V DC Fuse 



25. 


the box down. 

49 (65)






50 (65) EN/LZT 720 0476 Uen R2A 






Caution! 






6. Replace the faulty fuse with a new fuse, according to the table below. 

Table 7 Recommended AUX EQUIP −48 V DC Fuse 

Fuse Data Dimension 

Ceramic Slow Blow 2.5 A T, 250 V (1) 


Figure 39 Replacing the AUX EQUIP −48 V DC Fuse 


5 x 20 mm 

8. Refit the interface box cover and secure it in position with the nine torx 

screws. 



torx screws. 


51 (65)


5.10 Replacing the MBU-02 



25. 

2. Remove the battery cabinet, see step 1 – 9 in Section 5.4 Replacing the 



the box down. 

Figure 40 Releasing the Interface Box 


52 (65) EN/LZT 720 0476 Uen R2A 






Caution! 







7. Remove the AC connection terminal block, and remove the AC cables 

from the block. 

8. Loosen the PE in the AC section of the interface box. 

9. Loosen the two screws on the AC strain-relief clamp. 

10. Loosen the sleeve and pull out the AC cable. 

11. Remove the following terminal blocks: 

53 (65)


• AUX EQUIP –48 V DC 

• Alarm 

12. Unscrew the RBS –48 V DC cables. 

13. Remove the cable gland plate by removing the two torx screws. 

Figure 42 Loosening the Cable Gland Plate 



14. Remove the ESD wrist strap from the ESD connection point in the interface 

box. 

15. Remove the earth cable from the MBU-02. 

Earth 

Figure 43 Removing the Earth Cable from the MBU-02 

54 (65) EN/LZT 720 0476 Uen R2A 

P003168A



16. Remove the earth cable from the installation box door. 

Figure 44 Removing the Earth Cable from the Installation Box Door 

17. Remove the installation box door the following way: 

P005104B 

• Press down the spring locking pin on the upper right-hand corner of the 

installation box door, then unhook the upper part of the door. 

• Unhook the lower part of the door. 

Figure 45 Removing the Installation Box Door 

18. Loosen the four nuts securing the MBU-02 to the wall bracket. 

19. Lift up the MBU-02 and unhook it by pulling it away from the wall bracket. 


55 (65)



20. Mount the new MBU-02 on the mounting plate. Ensure that the fastening 

screws are properly positioned in the key holes. 

Figure 46 Mounting the MBU-02 on the Wall Bracket 

21. Secure the MBU-02 by tightening the four nuts. 

22. Refit the installation box door, starting with the lower part of the door. 

Ensure that the spring locking pin snaps into position on the upper part 

of the door. 

23. Terminate the earth cable to the MBU-02. 

24. Terminate the earth cable to the installation box door. 


box. 

26. Refit the cable gland plate and fasten the screws. 

27. Refit the RBS –48 V DC cables. 

28. Connect the AUX EQUIP –48 V DC and Alarm terminal block. 

29. Route the AC cable into the cable gland and tighten the sleeve. 

30. Tighten the two screws on the AC strain-relief clamp. 

31. Reconnect the PE to the interface box. 

32. Refit the AC Connection terminal block and the AC cables. 


34. Refit the interface box cover and secure it in position with the nine torx 

screws. 

56 (65) EN/LZT 720 0476 Uen R2A 




torx screws. 

36. Remount the battery cabinet, see step 10 – 18 in Section 5.4 Replacing the 


5.11 Replacing the Sunshields 


The sunshields are inter-connected and must be removed and installed in a 

specific order. The figure below shows the order in which the sunshields are to 

be removed. 

Left sunshield 

1 

3 

Front sunshield 

Figure 47 Overview of Sunshields 

2 

Lower sunshield 

4 

Upper sunshield 


For example, when replacing the left sunshield, the lower and front sunshields 

must be removed first. The sunshields are then installed in the following order: 

left, lower, and then front. 

Removing the Front Sunshield 



57 (65)


Figure 48 Sealing Screws and Key for the Installation Box Door 


P003166A 

2. Remove the front sunshield by pushing the spring locking pin, located in the 

lower left hand corner, and carefully bending the right top side off the hinge. 

Figure 49 Location of the Spring Locking Pin 

3. If more sunshields are to be removed, then remove the lower sunshield. 

Otherwise, follow the instructions for installing the sunshields given on 

Page 59. 

Removing the Lower Sunshield 

1. Pull down the lower sunshield by pressing the fasteners located on the 

middle of the sunshield, and unhooking the left side. 

2. If more sunshields are to be removed, then remove the left sunshield. 


Page 59. 

58 (65) EN/LZT 720 0476 Uen R2A


Removing the Left Sunshield 

1. Remove the left sunshield by unsnapping its lower part, then pushing the 

sunshield back, until it is clear of the EBB-06 hinges. 

2. If more sunshields are to be removed, then remove the upper sunshield. 


Page 59. 

Removing the Upper Sunshield 

1. Remove the screw-plugs of the upper sunshield, and unsnap it by pressing 

the middle of the sunshield. 

Installing the Sunshields 

1. If the upper sunshield has been removed, then mount the new upper 

sunshield. 

2. If the left sunshield has been removed, then mount the new left sunshield 

by hooking it on the top left side of the EBB-06 and pushing the lower part 

until it snaps into position. 

3. If the lower sunshield has been removed, then mount the new lower 

sunshield in its cut-out on the left side of the EBB-06 and snap it into 

position. 

4. Mount the new front sunshield. 


6. Lock the installation box door using a key, then fasten the screws. 

5.11.1 Replacing the Rear Sunshield 


1. Remove the MBU-02, see step 1 – 19 in Section 5.10 Replacing the 

MBU-02 on page 52. 

2. Place the MBU-02 on the ground. 

3. Remove the four lock washers, using a screwdriver. 

59 (65)


Figure 50 Removing the Lock Washers 

4. Separate the rear sunshield from the MBU-02. 

5. Mount the new rear sunshield and the new lock washers. 

6. Remount the MBU-02, see step 20 – 36 in Section 5.10 Replacing the 

MBU-02 on page 52. 

5.12 Starting Up the EBB-06 

1. Switch on the following switches in the listed order: 

• AC mains power switch 

• AC switch 



60 (65) EN/LZT 720 0476 Uen R2A 

P003676A



AC Mains 

Power switch 

1 

0 

BATTERY 

Figure 51 Switches for AC Mains Power, AC, and Battery 

Fault 

AC 

AC switch 



2. Check that the indicators and the numerical fault code corresponds to the 

figure below. If it is not, see: 

External Battery Backup 06, 



D1 D2 D3 

P004197A 

Figure 52 Fully Charged Batteries 

EN/LZT 720 0476 

Note: If no fault occurs, or no button is pressed within three minutes, then 

the display enters power saving mode. Reactivate the display by 

pressing any button. 


4. Lock the installation box door, using a key, then fasten the screws. 

61 (65)


Figure 53 Closing the Installation Box Door 


62 (65) EN/LZT 720 0476 Uen R2A 

P003166A


6 Preventive Maintenance for the EBB-06 

6.1 Sunshields 

This chapter provides information about the units requiring regular inspection at 

recommended intervals. Preventive Maintenance is performed to inspect and 

correct faults before they cause serious damage to the equipment. 

The interval between inspections at each RBS site varies, depending upon the 

environmental conditions. Outdoor sites are exposed to larger amounts of 

contamination and, therefore, require more maintenance than indoor sites. The 

RBS operator may decide to increase or decrease the recommended interval 

between inspections as required. 

EBB-06 Maintenance Schedule 

Table 8 EBB-06 Maintenance Schedule 

1) Inspect the sunshields Every time the EBB-06 unit is controlled 

or repaired 

2) Clean the cooling flanges 3 – 5 years between cleaning 

3) Replace the batteries Replace the batteries at 5 year intervals, 

or when faulty battery alarm occurs 

Replace sunshields that are damaged, discoloured, or deformed. 

For information regarding the replacement of the sunshields, see Section 5.11 

Replacing the Sunshields on page 57. 

6.2 Cooling Flanges 

6.3 Batteries 


1. Remove the sunshields, see Section 5.11 Replacing the Sunshields on 

page 57. 

2. Clean cooling flanges on the front, using a soft brush. 

3. Clean sunshields, if necessary. 

4. Clean cooling flanges on the back of the battery cabinet. 

For information regarding replacement of the batteries, see Section 5.3 

Replacing the Batteries on page 29. 

63 (65)


Table 9 Battery Checklist 

Check that: OK 

1 The batteries and battery compartment are free from dirt, 

excessive grease, oxidation, and corrosion 

2 The battery compartment is free from discolouration and is 

not deformed 

3 The batteries have not reached their replacement date 

4 The batteries do not leak acid 

Corrective Actions 


1. Clean the batteries and battery box, with a mild detergent and a soft brush. 

Remove oxidation and corrosion. 

2. Replace deformed or discoloured batteries. 

3. Replace batteries with damaged poles. 

4. If the lifetime of the batteries expires before the next scheduled 

maintenance, then replace the batteries. 

64 (65) EN/LZT 720 0476 Uen R2A


7 Performing Concluding Routines 


Before leaving the site, ensure the following: 

Table 10 EBB-06 Maintenance Checklist 

Check that OK 

The following switches are in the ON position: 

• AC to EBB-06 

• AC in the installation box 

• Battery in the installation box 

• Automatic circuit breaker inside EBB-06 

All cables are connected 

The EBB-06 has no alarms 

The RBS has no alarms 

All power output connections have the correct output power 

The RBS connected to the EBB-06 indicates that it has DC 

or battery voltage 

The “operational” LED is on 

The sunshields are attached 

65 (65)

RBS 2308, RBS 2309, EBB-01 and EBB-06 User's Guide

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