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Crocus SHDSL G703 

User and reference manual 

Version: 1.8 - 500871 

13 November 2007

ii Crocus SHDSL G703 

User manual 

Copyright, safety and statements 

Document properties 

Subject 

Manual type 



Version 1.8 

Code 500871 

Modification date 

13 November 2007 ©OneAccess 

Copyright notice 

The information and descriptions contained in this publication are the property of OneAccess. Such information 

and descriptions must not be copied or reproduced by any means, or disseminated or distributed 

without the express prior written permission of OneAccess. 

This publication could include technical inaccuracies or typographical errors, for which OneAccess never 

can or shall be held liable. Changes are made periodically to the information herein; these changes will 

be incorporated in new editions of this publication. OneAccess may make improvements and/or changes 

in the product(s) described in this publication at any time, without prior notice. 

Safety requirements 

Carefully read the safety instructions, installation precautions and connection precautions as stated in 

chapter 2 - Installing and connecting the Crocus SHDSL G703 on page 13.


User manual 


iii 

Statements 

www.oneaccess-net.com/telindus → Products → choose a product → Downloads → Certificates 

Hereby, OneAccess declares that this Crocus SHDSL G703 complies with the essential requirements 

and other relevant provisions of Directive 1999/5/EC. 

Hierbij verklaart OneAccess dat deze Crocus SHDSL G703 overeenstemt met de essentiële vereisten 

en andere relevante bepalingen van Richtlijn 1999/5/EC. 

Par la présente, OneAccess déclare que ce Crocus SHDSL G703 est en conformité avec les exigences 

essentielles et autres articles applicables de la Directive 1999/5/EC. 

Hiermit, OneAccess erklärt daß dieser Crocus SHDSL G703 in Fügsamkeit ist mit den wesentlichen 

Anforderungen und anderen relevanten Bereitstellungen von Direktive 1999/5/EC. 

Mediante la presente, OneAccess declara que el Crocus SHDSL G703 cumple con los requisitos esenciales 

y las demás prescripciones relevantes de la Directiva 1999/5/CE. 

A OneAccess declara que o Crocus SHDSL G703 cumpre os principais requisitos e outras disposições 

da Directiva 1999/5/EC. 

Col presente, OneAccess dichiara che questo Crocus SHDSL G703 è in acquiescenza coi requisiti 

essenziali e stipulazioni attinenti ed altre di Direttivo 1999/5/EC. 

Με το παρόν η OneAccess δηλώνει ότι το Crocus SHDSL G703 είναι συµµορφούµενο µε τις βασικές 

απαιτήσεις και µε τις υπόλοιπες σχετικές διατάξες της οδηγίας 1999/5/EC.

iv Crocus SHDSL G703 

User manual 


Environmental information 

The crossed-out wheeled bin means that within the European Union the product must be taken to separate 

collection at the product end of life. This applies to the device but also to any accessories marked with this symbol. 

Do not dispose of these products as unsorted municipal waste. 

If you need more information on the collection, reuse and recycling systems, please contact your local waste 

administration. You can also contact us for more information on the environmental specifications of our products. 

De doorgestreepte container wil zeggen dat binnen de Europese gemeenschap het product voor gescheiden afvalverzameling 

moet worden aangeboden aan het einde van de levensduur van het product. Dit geldt voor het toestel, maar ook voor alle 

toebehoren dia van dit symbool voorzien zijn. Bied deze producten niet aan bij het gewone huisvuil. 

Indien u meer informatie wenst over de systemen voor inzameling, hergebruik en recyclage, gelieve dan uw lokale afvaldiensten 

te contacteren. U kan ook ons contacteren wanneer u informatie wenst over de milieu aspecten van onze producten. 

Le symbole de la poubelle sur roues barrée d’une croix signifie que ce produit doit faire l’objet d’une collecte sélective en fin de 

vie au sein de l’Union Européenne. Cette mesure s’applique non seulement à vorte appareil mais également à tout autre 

accessoire marqué de ce symbole. Ne jetez pas ces produits dans les ordures ménagères non sujettes au tri sélectif. 

Si vous souhaitez plus d'information concernant les systèmes de collecte, de réutilisation et de recyclage, veuillez contactez votre 

service de gestion de déchets local. Vous pouvez également nous contacter pour obtenir plus d’information au sujet des 

spécifications environnementales de nos produits. 

Das Symbol der durchgestrichenen Abfalltonne auf Rädern bedeutet dass das Produkt in der Europäischen Union einer 

getrennten Mülsammlung zugeführt werden muss. Dies gilt sowohl für das Produkt selbst, als auch für alle mit diesem Symbol 

gekennzeichneten Zubehörteile. Diese Produkte dürfen nicht über den unsortierten Hausmüll entsorgt werden. 

Wenn Sie mehr Informationen brauchen über die Sammlung und Recycling Systemen, bitte konsultieren Sie Ihre örtliche Abfälle 

Verwaltung. Für mehr Informationen über die Umweltaspekten unserer Produkte, wenden Sie sich an unserer Kundendienst.


User manual 

Preface 

v 

Documentation set 

The documentation set of the Crocus SHDSL G703 currently consists of the following: 

Document 

Crocus SHDSL G703 manual 

(this manual) 

maintenance and management 

application manuals 

Description 

This is the manual you are reading now. 

It shows you how to install and connect the Crocus SHDSL G703 and 

gives you a basic configuration. It also contains a complete description 

of all the configuration, status, performance and alarm parameters 

for look-up purposes. 

The Crocus SHDSL G703 can be maintained and managed by a variety 

of maintenance and management tools. Refer to 1.5 - Maintenance 

and management tools on page 9 for an introduction on these 

tools and for a reference to the manual of these tools. 

cable documents A wide variety of cables exist to connect the Crocus SHDSL G703. 

The Data cables document (PDF) and the Management cables document 

(PDF) describe these cables. 

Organisation of this manual 

This manual contains the following main parts: 

Part 

User manual 

Reference manual 

Annex 

This part … 

shows you how to install and connect the Crocus SHDSL G703. It also gives a 

basic configuration of the Crocus SHDSL G703. 

gives more detailed information on the Crocus SHDSL G703, such as software 

download procedures, technical specifications, etc. It also contains a complete 

description of all the configuration, status, performance and alarm parameters 

for look-up purposes. 

gives additional information, such as product sales codes. 

Refer to the Table of contents on page x for a detailed overview of this manual.

vi Crocus SHDSL G703 

User manual 

Preface 

Typographical conventions 

The following typographical conventions are used in this manual: 

The format … 

Normal 

indicates … 

normal text. 

Italic • new or emphasised words 

• application windows, buttons and fields. E.g. In the File name field enter … 

Computer 

text you have to enter at the DOS or CLI prompt, computer output and code 

examples. 

E.g. NOK,1,1,Invalid command. 

Computer Bold 

text you have to enter at the DOS or CLI prompt when it is part of a mix of computer 

input and output. 

E.g. 

/o1003:"Edit Configuration" 

>get sysName 

sysName = "Orchid 1003 LAN" 

/o1003:"Edit Configuration" 

> 

Narrow 

 

Blue 

containment tree objects and attributes of a device when they are mentioned in 

the normal text. I.e. when they are not a part of computer input or output. 

E.g. Use the sysName attribute in order to … 

containment tree objects or attributes or part of them that are variable. I.e. 

depending on the product version, used interface, etc. the names of these 

objects or attributes are slightly different. 

E.g. topObject//someAttribute means that the name of the object 

depends on which modular interface you use. For example, v35 in 

case of a V.35 interface, g703 in case of a G.703 interface, etc. 

references to other parts in the manual. 

E.g. “Refer to xx - Title for more information”. 

Blue underline • a hyperlink to a web site. E.g. www.oneaccess-net.com 

• a reference to another manual. E.g. “Refer to the TMA manual (PDF) for 

more information”. The abbreviation between brackets is an indication of the 

file format (PDF = Portable Document Format / CHM = Compiled HTML 

Help).


User manual 

Preface 

vii 

Graphical conventions 

The following icons are used in this manual: 

Icon Name This icon indicates … 

Remark 

remarks or useful tips. 

Caution 

text to be read carefully in order to avoid damage to the device. 

Warning 

text to be read carefully in order to avoid injury. 

DIP switch 

a DIP switch or strap table. 

Basic attribute a basic attribute in the containment tree of the Crocus SHDSL G703. 

Advanced attribute 

Structured attribute 

an advanced attribute in the containment tree of the Crocus SHDSL 

G703. 

a structured attribute within another attribute in the containment tree 

of the Crocus SHDSL G703. 

Action an action in the containment tree of the Crocus SHDSL G703.

viii Crocus SHDSL G703 

User manual 

Preface 

Reading a DIP switch table 

At several places in this manual DIP switch tables are shown. To enable you to read such a table in a 

correct manner it is explained below. 

A DIP switch table has the following layout: 

The following table explains the DIP switch configuration table layout: 

Number 

This position displays … 

1 the DIP switch icon. 

2 the DIP switch name 

Example: 

Load default configuration 

3 the DIP switch position on the DIP switch bank. 

The abbreviations mean the following: 

DS1 no. 1: DIP switch bank number 1, switch position number 1 

4 the possible settings of the DIP switch: on and off. The default setting is printed in bold. 

5 the function associated with the corresponding DIP switch setting. 

Reading an attribute string 

At several places in this manual attribute strings are shown. To enable you to read such a string in a 

correct manner it is explained below. 

An attribute string has the following layout: 

The following table explains the attribute string layout: 

Number 

This position displays … 

1 the attribute icon. It indicates that the string which follows is an attribute string. Refer to 

Graphical conventions on page vii for more information. 

2 the attribute name and its position in the containment tree. 

3 the default value of a configuration attribute.


User manual 

Preface 

ix 

Hardware version 

This manual describes the hardware of the Crocus SHDSL G703 PCB version 2.0 and higher. 

Application software version 

This manual describes the features, containment tree and attributes of the Crocus SHDSL G703 application 

software version T2148/00500. 

Audience 

This manual is intended for computer-literate people, who have a working knowledge of computing and 

networking principles. 

Your feedback 

Your satisfaction about this purchase is an extremely important priority to all of us at OneAccess. Accordingly, 

all electronic, functional and cosmetic aspects of this new unit have been carefully and thoroughly 

tested and inspected. If any fault is found with this unit or should you have any other quality-related comment 

concerning this delivery, please submit the Quality Comment Form on our web page at 

www.oneaccess-net.com/telindus → Support. 

Rating plate 

For exact identification, you will find the model designation and serial number on the rating plate on the 

bottom of the housing. Please note this information here before installation in order to have it to hand in 

the event of queries or spare parts orders.

x Crocus SHDSL G703 


Table of contents 


User manual............................................................................................ 1 

1 Introducing the Crocus SHDSL G703 ................................................................3 

1.1 Crocus SHDSL G703 features ................................................................................... 4 

1.2 Crocus SHDSL G703 product overview ..................................................................... 5 

1.3 Identifying the Crocus SHDSL G703 non-RP and RP version ................................... 7 

1.4 Power back-off ........................................................................................................... 8 

1.5 Maintenance and management tools ......................................................................... 9 

1.6 Maintenance and management tools connection possibilities ................................. 11 

2 Installing and connecting the Crocus SHDSL G703.......................................13 

2.1 Safety instructions .................................................................................................... 14 

2.2 Unpacking ................................................................................................................ 15 

2.3 Selecting a site ......................................................................................................... 16 

2.4 Wall mounting........................................................................................................... 17 

2.5 Installation and connection precautions ................................................................... 19 

2.6 Connecting the Crocus SHDSL G703 Table Top..................................................... 20 

2.7 Remote power operation .......................................................................................... 25 

2.8 Using a repeater....................................................................................................... 29 

2.9 Front panel LED indicators....................................................................................... 30 

3 DIP switches and straps of the Crocus SHDSL G703 ....................................33 

3.1 DIP switches and straps........................................................................................... 34 

4 Maintaining the Crocus SHDSL G703 ..............................................................41 

4.1 Starting TMA on the Crocus SHDSL G703 .............................................................. 42 

4.2 Introducing the management attributes of the Crocus SHDSL G703....................... 47 

5 Step-by-step configuration ...............................................................................53 

5.1 Configuring the basic line parameters...................................................................... 54 

5.2 Configuring EOC handling........................................................................................ 57 

5.3 Configuring the timing mode .................................................................................... 64 

5.4 Clocking of Crocus devices to access PDH and SDH networks .............................. 65 

5.5 Configuring the clocking mode ................................................................................. 82 

5.6 Configuring the minimum line speed ........................................................................ 87 

5.7 Configuring framing and time slots........................................................................... 93 

5.8 Low speed limitations on the G703 interfaces.......................................................... 97 

5.9 Configuring the interface specific attributes ............................................................. 98 

5.10 Configuring the management attributes ................................................................... 99 

5.11 Configuring passwords........................................................................................... 111 

5.12 Executing configuration actions.............................................................................. 113 

5.13 Troubleshooting the Crocus SHDSL G703 ............................................................ 118 

5.14 Crocus SHDSL G703 compatibility with other SHDSL devices.............................. 119




xi 

Reference manual .............................................................................. 121 

6 Configuration attributes..................................................................................123 

6.1 Configuration attribute overview............................................................................. 124 

6.2 General configuration attributes ............................................................................. 126 

6.3 Line configuration attributes ................................................................................... 131 

6.4 Line pair configuration attributes ............................................................................ 145 

6.5 Repeater and end configuration attributes ............................................................. 147 

6.6 DTE Interface configuration attributes.................................................................... 148 

6.7 Management configuration attributes ..................................................................... 151 

7 Status attributes ..............................................................................................155 

7.1 Status attribute overview ........................................................................................ 156 

7.2 General status attributes ........................................................................................ 159 

7.3 Line status attributes .............................................................................................. 163 

7.4 Line pair status attributes ....................................................................................... 172 

7.5 Repeater and end status attributes ........................................................................ 175 

7.6 DTE Interface status attributes............................................................................... 180 

7.7 Operating system status attributes......................................................................... 184 

8 Performance attributes ...................................................................................187 

8.1 Performance attribute overview.............................................................................. 188 

8.2 Introducing the performance attributes................................................................... 190 

8.3 Line performance attributes.................................................................................... 193 

8.4 Line pair performance attributes............................................................................. 196 

8.5 Repeater and end performance attributes.............................................................. 199 

8.6 G703 interface performance attributes................................................................... 200 

8.7 Operating system performance attributes .............................................................. 204 

9 Alarm attributes ...............................................................................................207 

9.1 Alarm attribute overview......................................................................................... 208 

9.2 Introducing the alarm attributes.............................................................................. 210 

9.3 General alarms....................................................................................................... 218 

9.4 Line alarms............................................................................................................. 221 

9.5 Line pair alarms...................................................................................................... 223 

9.6 Repeater and end alarms....................................................................................... 226 

9.7 Interface alarms...................................................................................................... 229 

10 TMA subsystem picture of the Crocus SHDSL G703 ...................................231 

10.1 Displaying the subsystem picture........................................................................... 232 

10.2 Subsystem picture elements .................................................................................. 233 

11 Software download..........................................................................................235 

11.1 What is boot, loader and application software...................................................... 236 

11.2 Important download issues..................................................................................... 240 

11.3 Downloading with TMA........................................................................................... 241 

11.4 Downloading with TML ........................................................................................... 242 

11.5 Downloading in loader mode.................................................................................. 243

xii Crocus SHDSL G703 



12 Diagnostic tests ...............................................................................................245 

12.1 Introducing the diagnostic tests.............................................................................. 246 

12.2 Line tests ................................................................................................................ 247 

12.3 Interface tests......................................................................................................... 255 

13 Technical specifications .................................................................................257 

13.1 Crocus SHDSL G703 types.................................................................................... 258 

13.2 Line specifications .................................................................................................. 259 

13.3 RJ45 - RJ12 adapter specifications........................................................................ 261 

13.4 Maximum covered distance on a noise free line .................................................... 262 

13.5 G703 interface specifications ................................................................................. 263 

13.6 Management interface connectors ......................................................................... 264 

13.7 Control connector ................................................................................................... 265 

13.8 Diagnostic tests ...................................................................................................... 266 

13.9 Power requirements ............................................................................................... 267 

13.10Thermal behaviour when providing remote power ................................................. 268 

13.11Environmental compliance ..................................................................................... 269 

13.12Safety compliance .................................................................................................. 270 

13.13Over-voltage and over-current protection compliance ........................................... 270 

13.14EMC compliance .................................................................................................... 270 

13.15Mechanical dimensions .......................................................................................... 270 

Annex .................................................................................................. 271 

Annex A:product information ...............................................................................273 

Annex B:abbreviations ..........................................................................................279 

Index........................................................................................................ 1

Crocus SHDSL G703 1 

User manual 

User manual

2 Crocus SHDSL G703 

User manual

Crocus SHDSL G703 Chapter 1 3 

User manual 

Introducing the Crocus SHDSL G703 

1 Introducing the Crocus SHDSL G703 

This chapter introduces the Crocus SHDSL G703. The following gives an overview of this chapter: 

• 1.1 - Crocus SHDSL G703 features on page 4 

• 1.2 - Crocus SHDSL G703 product overview on page 5 

• 1.3 - Identifying the Crocus SHDSL G703 non-RP and RP version on page 7 

• 1.4 - Power back-off on page 8 

• 1.5 - Maintenance and management tools on page 9 

• 1.6 - Maintenance and management tools connection possibilities on page 11

4 Crocus SHDSL G703 Chapter 1 

User manual 


1.1 Crocus SHDSL G703 features 

The Crocus SHDSL G.703 (Symmetric High Bit Rate Digital Subscriber Line) is a manageable baseband 

modem offering full 2,3 Mbps duplex transmission over unconditioned unshielded twisted-pair cable. 

A dedicated 2-pair version offers the possibility to extend the reach to longer distances or higher speeds 

(up to 4.6 Mbps). For extreme long distances, the equipment can fall back to a lower transmission rate, 

offering reduced speeds on the Fractional E1 (FE1) operation. The equipment is based on the TC-PAM 

(Trellis Coded Pulse Amplitude Modulation) modulation, which guarantees higher speeds and longer 

loop performance. It also guarantees spectral compatibility with legacy and ADSL transmission systems 

in the same cable bundle. The unit can be used in a point-to-point configuration, or can be used with a 

central solution based on card-nest 4 (CN4) or the OneAccess 2300. The Crocus SHDSL G.703 is available 

as a locally or remotely powered (RP) unit. The remotely powered unit can also be locally powered 

at -48VDC directly or by 230Vac through an external power adapter. The unit is designed for integration 

into demanding network environments and can be controlled by the complete set of network maintenance 

and management tools.


User manual 


1.2 Crocus SHDSL G703 product overview 

The following Crocus SHDSL G703 product versions exist: 

Crocus SHDSL product 

• Crocus SHDSL BU 

• Crocus SHDSL 2P BU 

• Crocus SHDSL LCD BU 

• Crocus SHDSL 2P LCD BU 

• Crocus SHDSL TT G703 

• Crocus SHDSL 2P TT G703 

• Crocus SHDSL TT G703 RP 

• Crocus SHDSL 2P TT G703 RP 

• Crocus SHDSL INF G703 1P TT Vac 

• Crocus SHDSL INF G703 1P TT NPWR 

• Crocus SHDSL INF G703 1P TT RP 

• Crocus SHDSL INF G703 2P TT Vac 

• Crocus SHDSL INF G703 2P TT NPWR 

• Crocus SHDSL INF G703 2P TT RP 

• 

• Crocus SHDSL TT RS530 

• Crocus SHDSL 2P TT RS530 

• Crocus SHDSL TT RS530 RP 

• Crocus SHDSL 2P TT RS530 RP 

Manual 

These versions are described in the Crocus 

SHDSL manual. 

These versions are described in the manual Crocus 

SHDSL G703. 


SHDSL INF TT G703. 


SHDSL RS530. 

• OneAccess 2300 SHDSL Series These versions are described in the manual 

OneAccess 2300 SHDSL Series. 

• Crocus SHDSL 2P G703 CV TWIN-CN7 RP 

unframed 

• Crocus SHDSL 2P G703 NX64K TWIN-CN7 

RP 

• Crocus SHDSL 2P G703 NX64K TWIN-CN7 

• Crocus SHDSL G703 NX64K TWIN-CN7 RP 

• Crocus SHDSL G703 NX64K TWIN-CN7 

These versions are described in the Crocus 

SHDSL CN7 manual. 

The following table gives a description of the used abbreviations: 

Abbreviation In full Explanation 

1P 1 pair This version has 1 line pair. 

2P 2 pair This version has 2 line pairs. 

4P 4 pair This version has 4 line pairs. 

BU Basic Unit This is the Crocus SHDSL basic unit.


User manual 


Abbreviation In full Explanation 

TT Table Top This version is a stand-alone version of the Crocus 

SHDSL G703. It is available with or without an LCD 

display and keyboard. 

CV Card Version This version is a card that has to be inserted into the 

CN4 card nest. The connections (power and line) are 

made through the CN4 card nest. 

CV Twin Card Version Twin This version is a card that has to be inserted into the 

CN4 card nest. It incorporates two Crocus SHDSL 

G703 modems on one card (hence the name Twin). 

As a result, one CN4 card nest can contain up to 30 

modems. The connections (power and line) are 

made through the CN4 card nest. 

Vac Volts - Alternate Current This version has to be powered with 115 or 230 Vac. 

-48Vdc -48 Volts - Direct Current This version has to be powered with -48 Vdc. 

RP Remote Power This version can be powered with remote power (i.e. 

power coming from the central side, over the line). 

G703 G703 interface This version has a fixed G.703 DTE interface instead 

of an empty interface slot in which you can insert a 

modular interface. 

RS530 RS530 interface This version has a fixed RS530 DTE interface. 

CN7 Card Nest 7 This version is a card that has to be inserted into the 

CN7 card nest. The connections (power and line) are 

made through the CN7 card nest.


User manual 


1.3 Identifying the Crocus SHDSL G703 non-RP and RP version 

This manual describes both the Crocus SHDSL G703 and Crocus SHDSL G703 RP version. The front 

panel of the Crocus SHDSL G703 (i.e. the non-RP version) and the Crocus SHDSL G703 RP are the 

same. However, you can identify them by looking at the back panel: 

Version 

Back panel 

Crocus SHDSL G703 • 12 Vdc power connector 

• RJ45/BNC 

Crocus SHDSL G703 RP • 12 Vdc power connector 

• 48 Vdc power connector 

• RJ45/BNC 

For a view of the back panels of both Crocus SHDSL G703 versions, refer to 2.6 - Connecting the Crocus 

SHDSL G703 Table Top on page 20. 

The Crocus SHDSL G703 (i.e. the non-RP version) can not be powered by remote power. Only use the 

Crocus SHDSL G703 RP version in a remote power setup.


User manual 


1.4 Power back-off 

The Crocus SHDSL G703 features power back-off. Power back-off is a part of the ITU-T G.991.2 SHDSL 

recommendation. It reduces the maximum transmit power level if the line conditions are sufficiently good 

to operate at a lower transmit level. 

Power back-off is performed by default (no configuration attribute). During the ITU-T G.994.1 handshake, 

the two sides of the line mutually agree on the transmit level. The transmit level is lowered 

between 0 and 6 dB in steps of 1dB. 

Important remark 

When 2 devices are connected point to point using the lowest speeds, an attenuation is always needed 

to get into data state, despite the power back-off mechanism. Connecting the devices with a cable of 1 

meter for instance will not work. 

For the lowest speeds, a minimum distance of 2 kilometers (simulated or not) is required between the 

devices.


User manual 


1.5 Maintenance and management tools 

The Crocus SHDSL G703 is manageable in many different ways. This section gives a quick overview of 

the various maintenance and management tools. 

Maintenance or 

management 

tool 

TMA 

TMA CLI 

ATWIN 

CLI 

TMA Element 

Management 

TMA for HP 

OpenView 

Description and reference 

TMA (Total Maintenance Application) is a free Windows software package with a 

comprehensive graphical user interface that enables you to control the OneAccess 

products completely. I.e. to access their configuration attributes and look at status, 

performance and alarm information. 

Refer to 4 - Maintaining the Crocus SHDSL G703 on page 41 and the TMA manual 

(PDF) for more information. 

TMA CLI (TMA Command Line Interface) enables you to use its commands in 

scripts in order to automate management actions. This is particularly useful in 

large networks. 

Refer to the TMA CLI manual (PDF) for more information. 

ATWIN is a menu-driven user interface. You can read and change all attributes as 

with TMA, but in a more basic, textual representation using a VT100 terminal. 

Refer to the Maintenance tools manual (PDF) for more information. 

CLI is also a Command Line Interface, although not so extensive as TMA CLI. 

Experienced users who are familiar with the syntax can access the OneAccess 

devices more quickly than with TMA or ATWIN. 


TMA Element Management is a management application designed to monitor 

large numbers of OneAccess devices. It combines the easy to use graphical interface 

of the stand-alone version of TMA with an event-logging application called the 

Element Viewer. 

Refer to the TMA Element Management manual (PDF/CHM) for more information. 

TMA for HP OpenView is the management application that runs on the widely 

spread network management platform HP OpenView. It combines the easy to use 

graphical interface of the stand-alone version of TMA with the advantages and features 

of HP OpenView. 

Refer to the TMA for HP OpenView manual (PDF) for more information.


User manual 


Maintenance or 

management 

tool 

SNMP 

Web Interface 

Easy Configurator 

Description and reference 

You can manage the Crocus SHDSL G703 through SNMP using any SNMP 

browser. The Crocus SHDSL G703 supports MIB2 and a private MIB, including 

traps. 

The private MIB comes with your copy of TMA. After installation of the TMA data 

files, the private MIB file is available in directory C:\Program Files\TMA\snmp 1 with 

the name .mib 2 . 

Refer to the documentation of your SNMP browser for more information. 

The Web Interface is an ATWIN alike menu-driven user interface. You can read 

and change all attributes as with TMA, but in a more basic representation using a 

web browser. 


The Easy Configurator allows you to add HTML pages on top of the standard Web 

Interface by adding a set of specific files on the file system of the Crocus SHDSL 

G703. These files can be made either by OneAccess or by the customer itself. 

The goal is to offer a simple, custom made web interface which allows only to 

change or show those parameters that are relevant for a certain application or customer. 


1. The first part of the directory path may be different if you did not choose the default path during 

the installation of the TMA data files. 

2. The filename is product dependent. To determine which MIB file corresponds with which product, 

refer to the models.nms file (located in C:\Program Files\TMA\model 1 ).


User manual 


1.6 Maintenance and management tools connection possibilities 

The following table gives an overview of all the maintenance and management tools and how you can 

connect them with the Crocus SHDSL G703: 

Maintenance or management 

tool 

Tool - Crocus SHDSL G703 

connection 

Tool - management concentrator 

connection 1 

Serial 2 

IP 3 

Serial 2 IP 3 

Keyboard 4 

CLI X 5 

X 5 X 6 

ATWIN X 5 X 5 X 6 

TMA X X X 

TMA CLI X X X 

TMA Element Management 

TMA for HP OpenView 

SNMP 7 

Web Interface 8 

X 

X 

X 

X 

Easy Configurator X 9 

1. Examples of management concentrators are the Orchid 1003 LAN, the OneAccess 1030 

Router series, the OneAccess 2300 SHDSL series, etc. Refer to their corresponding manuals 

for more information on how to set these devices up as management proxy. 

2. A serial connection is a connection between the COM port of your PC and the control connector 

of the device using a male-female DB9 cable. 

3. An IP connection is a connection between your PC and the device over an IP network. 

4. Connection with the Crocus SHDSL G703 is internal. Keyboard and LCD are not available on 

all models. 

5. Using a VT100 terminal (emulation program). 

6. Using Telnet. 

7. Using an SNMP browser. 

8. Using a web browser. 

9. The proper XML files must be present on the file system of the management concentrator.


User manual 

Introducing the Crocus SHDSL G703


User manual 

Installing and connecting the Crocus SHDSL G703 

2 Installing and connecting the Crocus SHDSL G703 

First this chapter gives some important safety instructions. Then it explains how to install and connect 

the Crocus SHDSL G703. 

You are advised to read this chapter in a sequential manner, from the beginning to the end, without skipping 

any part. By doing so, your Crocus SHDSL G703 will be completely installed and ready for configuration 

when you reach the end of this chapter. 

The following gives an overview of this chapter: 

• 2.1 - Safety instructions on page 14 

• 2.2 - Unpacking on page 15 

• 2.3 - Selecting a site on page 16 

• 2.4 - Wall mounting on page 17 

• 2.5 - Installation and connection precautions on page 19 

• 2.6 - Connecting the Crocus SHDSL G703 Table Top on page 20 

• 2.7 - Remote power operation on page 25 

• 2.8 - Using a repeater on page 29 

• 2.9 - Front panel LED indicators on page 30


User manual 


2.1 Safety instructions 

IMPORTANT SAFETY INSTRUCTIONS 

Unplug the unit from the wall power outlet or remove it from the card nest before installing, adjusting or 

servicing. 

The safety of this unit depends upon the third pin (ground pin) of the 3-wire grounding type plug. Do not 

defeat this safety feature. If the power outlet at your site only has 2 pins, please consult a qualified electrician. 

WICHTIGE SICHERHEITSINSTRUKTIONEN 

Vor sämtlichen Arbeiten am Gerät (Installation, Einstellungen, Reparaturen etc.) sollten Sie den 

Netzstecker aus der Steckdose ziehen. 

Die Sicherheit dieses Gerätes ist abhängig von dem dritten Kontakt (dem Erdungspin) des 3-poligen 

Steckers. Beachten Sie unbedingt diese Sicherheitsstandard. Sollten Sie nur eine ältere 2-polige Steckdose 

zur Verfügung haben, lassen Sie diese von einem Elektriker gegen eine 3-polige Steckdose 

auswechseln. 

SAFETY WARNING 

To avoid damage to the unit, please observe all procedures described in this chapter. 

SICHERHEITSBESTIMMUNGEN 

Um eine Beschädigung des Gerätes zu verhindern, beachten Sie bitte unbedingt die Sicherheitsbestimmungen, 

die in diesem Abschnitt beschrieben werden. 

Ensure that the unit and its connected equipment all use the same AC power and ground, to reduce 

noise interference and possible safety hazards caused by differences in ground or earth potentials.


User manual 


2.2 Unpacking 

Checking the shipping carton 

Rough handling during shipping causes most early failures. Before installation, check the shipping carton 

for signs of damage: 

• If the shipping carton is damaged, please place a claim with the carrier company immediately. 

• If the shipping carton is undamaged, do not dispose of it in case you need to store the unit or ship it 

in the future. 

Package contents 

The box should contain the following items: 

• Crocus SHDSL G703 

• TMA CD-ROM including the TMA software and appropriate model files and the User and Reference 

manual in PDF format. 

• RJ45 to RJ12 adapter 

Optionally (depending which sales item you ordered): 

• 12 Vdc power connector and external power adapter 

• 48 Vdc power connector


User manual 


2.3 Selecting a site 

WARNING 

Always place the unit on its feet without blocking the air vents. 

Do not stack multiple units directly onto each other, as stacking can cause heat build-up that could damage 

the equipment. 

ACHTUNG 

Stellen Sie das Gerät niemals seitlich, sondern nur auf den Füßen auf und achten Sie darauf, daß die 

Lüftungsschlitze an der Seitenverkleidung frei bleiben. 

Stapeln Sie nicht mehrere Geräte direkt übereinander, dies kann zu einem Hitzestau führen. 

Install the unit in an area free of extreme temperatures, humidity, shock and vibration. Position it so that 

you can easily see and access the front panel and its control indicators. Leave enough clearance at the 

back for cables and wires. Position the unit within the correct distances for the different accesses and 

within 2m of a power outlet.


User manual 


2.4 Wall mounting 

The Crocus SHDSL G703 TT can be mounted on a wall. Proceed as follows: 

Step 

Action 

1 Drill two holes in the wall, according to the following specifications:· 

• diameter of the drill: 4 mm 

• distance between the holes: 120 mm 

• depth of the holes: at least 25 mm 

2 Insert two wall plugs in the holes, with following specifications:· 

• diameter: 4 mm· 

• length: 20 mm 

3 Screw two square hooks (steel zinc plated and white epox) in the plugs, with following 

dimensions: 

4 Slide the Crocus SHDSL G703 over the hooks until it touches the wall. This is indicated 

with a in the figure below. 

5 Slide the Crocus SHDSL G703 down until it is firmly attached. This is indicated with 

in the following figure. 

b


User manual 


The following figure illustrates how to mount the Crocus SHDSL G703 against the wall:


User manual 


2.5 Installation and connection precautions 

ESD WARNING 

The circuit boards are sensitive to electrostatic discharges (ESD) and should be handled with care. It is 

advisable to ensure an optimal electrical contact between yourself, the working area and a safety ground 

before touching any circuit board. Take special care not to touch any component or connector on the 

circuit board. 

EMC WARNING 

The complete Crocus family and the CN4 card nest are fully EMC compliant. Because of the modular 

structure of the CN4 card nest, all unused slots (power slots, card slots and interface slots) have to be 

covered with the appropriate blanking modules at installation time. 

To ensure compliance with EMC directive 89/336/EEC, shielded cables or ferrite beads have to be used. 

NOTE 

This unit may be powered by an IT Power System. 

The connectors of the Crocus SHDSL G703 should only be connected to the following circuit types: 

Connector name Connector label Connector type Circuit type 

line line RJ45 TNV-1 1 

TNV-3 2 

management CTRL subD SELV 

G703 interface - RJ45/BNC SELV 

1. Without Remote Power 

2. With Remote Power 

• SELV (Safety Extra Low Voltage): local connection (e.g. PC to Crocus SHDSL G703) or leased line 

inside the building. 

• TNV-1 (Telecom Network Voltage): leased line outside the building. 

• TNV-2: PSTN from PABX inside the building. 

• TNV-3: PSTN from operator PABX outside the building.


User manual 


2.6 Connecting the Crocus SHDSL G703 Table Top 

This section explains how to connect the Crocus SHDSL G703 TT. The following gives an overview of 

this section: 

• 2.6.1 - Table Top connections on page 21 

• 2.6.2 - Connecting the power supply to the Table Top on page 22 

• 2.6.3 - Signal and protective ground interconnection on page 23 

• 2.6.4 - Connecting the line to the Table Top on page 24


User manual 


2.6.1 Table Top connections 

All the connections have to be made at the back of the Table Top. 

Crocus SHDSL G703 (non-RP version) 

Crocus SHDSL G703 RP 

The following table labels the different parts located at the back of the Crocus SHDSL G703: 

Label 

12VDC 

48VDC 

G703 

CTRL 

LINE 

Part 

power inlet (12 Vdc / 48 Vdc) 

BNC / RJ45 interface connectors 

SUBD9 control connector 

RJ45 line connector


User manual 


2.6.2 Connecting the power supply to the Table Top 

The following table explains how to connect the power supply. The TT exists in two different models: 

TT model Connector type Connecting the power supply 

-48 Vdc 48 V power supply 

connector 

12 Vdc 12 V power supply 

connector 

For a -48 Vdc model, a power supply connector is delivered 

with the Crocus SHDSL G703.The + and - indications are with 

respect to each other, not to ground level. This means that for 

a standard -48 Vdc connection, the ground has to be connected 

to +, while the negative voltage has to be connected to 

the -.When the -48 Vdc power supply connector is wired, connect 

it to the power inlet. Refer to Crocus SHDSL G703 RP on 

page 21. 

Insert the plug of the 12 Vdc power adapter in the 12 Vdc 

power inlet.


User manual 


2.6.3 Signal and protective ground interconnection 

You can configure the interconnection between signal ground and protective ground (earth). Do this by 

means of the appropriate strap located on the TT motherboard. For more information, refer to 3.1.3 - 

Straps of the TT on page 37.


User manual 


2.6.4 Connecting the line to the Table Top 

In order to connect the line to the Table Top, proceed as follows: 

Step 

Action 

1 If you have a line cable with an … 

• RJ45 connector, you can immediately plug one end of the cable in the line connector 

of the Crocus SHDSL G703. 

• RJ12 connector, then first plug in the RJ45 to RJ12 adapter in the line connector of 

the Crocus SHDSL G703. Then plug one end of the cable in the adapter. 

For more information on the line connector and adapter layout, refer to 13.2 - Line specifications 

on page 259 and 13.3 - RJ45 - RJ12 adapter specifications on page 261. 

2 Plug the other end of the cable in the DSL outlet. 

For optimum performance, the used line pairs have to be properly twisted pairs.


User manual 


2.7 Remote power operation 

This section gives an overview of the remote power functionalities and indicates how to activate them. 

The following gives an overview of the section. 

• 2.7.1 - What is remote power (RP) on page 26 

• 2.7.2 - Remote power operation overview on page 27 

• 2.7.3 - Remote power sink operation: how to remote power the Crocus SHDSL G703 RP on page 28 

Important remarks 

• The Crocus SHDSL G703 and RS530 (i.e. the non-RP version) can not be powered by remote power. 

Only use the Crocus SHDSL G703 RP and RS530 RP version in a remote power setup. 

• When using remote power, certain limitations apply with regards to the number of Card Versions that 

can be inserted in the CN4, CN4-4 and CN4-2 rack; refer to 13.10 - Thermal behaviour when providing 

remote power on page 268. Not complying with these rules will result in irreversible damage to 

the device.


User manual 


2.7.1 What is remote power (RP) 

Remote powering means that a local modem (RP source modem) supplies operational power over the 

line to a remote modem (RP sink modem). Remote powering is in accordance with the ITU-T recommendation 

K.15. 

The RP sink modem typically is dual powered. This means that it is either powered by a local power supply 

or by remote power over the line. If the local power supply fails, then the RP sink modem is still powered 

over the line by the RP source modem. As soon as the local power supply is reactivated, the RP 

sink modem is powered again by this power supply.


User manual 


2.7.2 Remote power operation overview 

Some versions of the Crocus SHDSL family can work as remote power source, while others can only 

work as remote power sink. The following table gives an overview of the remote power functionality in 

the different Crocus SHDSL versions: 

Version RP source RP sink 

Crocus SHDSL CV X - 

Crocus SHDSL TT - - 

Crocus SHDSL G703 TT - - 

Crocus SHDSL G703 TT RP - X 

Crocus SHDSL RS530 TT - - 

Crocus SHDSL RS530 TT RP - X 

Crocus SHDSL xP CV CN7 RP X - 

Crocus SHDSL Repeater - X 

When using a TT device as remote power sink, no DIP switches or straps have to be adjusted in the 

device.


User manual 


2.7.3 Remote power sink operation: how to remote power the Crocus SHDSL 

G703 RP 

The Crocus SHDSL G703 and RS530 (i.e. the non-RP version) can not be powered by remote power. 

Only use the Crocus SHDSL G703 RP and RS530 RP version in a remote power setup. 

The Crocus SHDSL G703 RP can be remotely powered in the following ways: 

A central CN4 with a Remote Power option board on a Crocus SHDSL CV Quad DXC / Crocus 

SHDSL CV. 

For more information on how to set up remote powering in the configuration as depicted above, refer to 

the Crocus SHDSL CV Quad DXC manual. In this manual it is described how a Crocus SHDSL CV Quad 

DXC has to be configured for remote powering. 

A central OneAccess 2321 or 2323 with a Remote Power option board. 

For more information on how to set up remote powering in the configuration as depicted above, refer to 

the OneAccess 2321/2323 manual. In this manual it is described how a OneAccess 2321/2323 has to 

be configured for remote powering.


User manual 


2.8 Using a repeater 

You can use the Crocus SHDSL Repeater to increase the maximum distance between two Crocus 

SHDSL modems. 

There are however some issues to consider when using a repeater: 

• The customer side (C-side) of the Crocus SHDSL Repeater always slaves on the network side (Nside). 

This means that the LTU or central modem has to generate a clock for the N-side of the Crocus 

SHDSL Repeater. Therefore the LTU or central modem can not be configured in slave-receive clocking. 

• In case you have two Crocus SHDSL G703 2P (2 pair) versions, you can not use two Crocus SHDSL 

Repeater 1P (1 pair) version on each line pair. This does not work. 

For more information on the Crocus SHDSL Repeater, refer to the Crocus SHDSL Repeater manual. 

Maximum 8 Crocus SHDSL repeaters can be used on a link.


User manual 


2.9 Front panel LED indicators 

This section gives an overview of the front panel LEDs and what they indicate. The following gives an 

overview of this section. 

• 2.9.1 - Introducing the front panel LEDs on page 31 

• 2.9.2 - Power LED (PWR, green) on page 32 

• 2.9.3 - Data carrier detect LED (DCD/109, green) on page 32 

• 2.9.4 - Serial LED (SERIAL, green) on page 32


User manual 


2.9.1 Introducing the front panel LEDs 

When all the connections are made and the Crocus SHDSL G703is powered, the LEDs on the front 

panel reflect the actual status of the Crocus SHDSL G703. 

The figure below shows the front panel LED indicators of the Crocus SHDSL G703: 

Front panel LED status modes 

For some front panel LED indicators (TST, AIS ERR and DCD) different status modes exist. These status 

modes can be distinguished by the way the LED lights up: 

LED status LED duty cycle Description 

continuously off 0% The LED never lights up. 

continuously on 100% The LED lights up continuously. 

blinking 50% The LED is as much lit as it is out. 

flashing 20% The LED only lights up during 20% 

of the time. 

monitoring - The LED lights up irregularly. For 

instance, it lights up on detection of 

a certain signal. I.e. it monitors this 

signal.


User manual 


2.9.2 Power LED (PWR, green) 

This LED indicates the power state of the Crocus SHDSL G703: 

LED status 

on 

flashing 

Description 

The Crocus SHDSL G703 is powered locally. 

The Crocus SHDSL G703 is powered remotely. 

2.9.3 Data carrier detect LED (DCD/109, green) 

This LED indicates whether the central Crocus SHDSL G703 is in synchronisation with the remote 

SHDSL device. Three different modes can be distinguished: 

LED status 

off 

blinking 

on 

Description 

No signal is detected on the line. 

A training cycle between central and remote SHDSL device is in progress. 

The central and remote SHDSL devices are synchronised. A data link is present. 

In case of a Crocus SHDSL G7032P two DCD LEDs are present, one for each line pair. 

2.9.4 Serial LED (SERIAL, green) 

This LED indicates the state of the Crocus SHDSL G703 interface: 

LED status 

on 

off 

Description 

The Crocus SHDSL G703 interface is up. 

The Crocus SHDSL G703 interface is down.


User manual 

DIP switches and straps of the Crocus SHDSL G703 

3 DIP switches and straps of the Crocus SHDSL G703 

This chapter locates the DIP switches and straps on the Crocus SHDSL G703 motherboard. It gives an 

overview of their function and it explains how to change their settings. 

The following gives an overview of this chapter. 

• 3.1 - DIP switches and straps on page 34 

Default settings are printed in bold.


User manual 


3.1 DIP switches and straps 

This section locates the DIP switches and straps on the TT motherboard. It gives an overview of their 

function and it explains how to change their settings. 

Disconnect the Crocus SHDSL G703 from the mains before you open the housing to change DIP switch 

and/or strap settings. 


• 3.1.1 - The TTmotherboard on page 35 

• 3.1.2 - DIP switches of the TT on page 36 

• 3.1.3 - Straps of the TT on page 37 

• 3.1.4 - Changing DIP switch and strap settings of the TT on page 39 

Default settings are printed in bold.


User manual 


3.1.1 The TTmotherboard 

The figure below shows the position of the DIP switches and straps on the TT motherboard.


User manual 


3.1.2 DIP switches of the TT 

The following table gives an overview of DIP switch bank DS1 of the TT: 

DIP switch name DS1 no. Setting Function 

loader mode 1 on Normal operation. 

off 

Start up in loader 

mode. 

load default configuration 

2 on Normal operation. 

off 

Load default configuration. 

For more information on … 

• DIP switch and strap location on the TT motherboard, refer to 3.1.1 - The TTmotherboard on page 35. 

• changing DIP switch and strap settings on the TT, refer to 3.1.4 - Changing DIP switch and strap settings 

of the TT on page 39.


User manual 


3.1.3 Straps of the TT 

Strap ST1 

Using strap ST1 you can configure the interconnection between signal ground and protective ground 

(earth): 

ST1 strap position 

Connection 

Description 

1-2 disconnected 

(default) 

2-3 directly connected 

By default, the signal ground is disconnected from the earth. 

This avoids problems which might occur when the earth potential 

of the Crocus SHDSL G703 and the connected application 

is not the same. In such a situation earth current loops may 

induce distortion on the transmitted data, resulting in transmission 

errors. 

Sometimes it is not possible to connect the application directly 

to the earth. In that case you can earth the application through 

the Crocus Crocus SHDSL G703 by connecting the Crocus 

SHDSL G703 to the earth and setting strap ST1.Also the opposite 

situation might occur: it is not possible to earth the Crocus 

SHDSL G703. In that case you can earth the Crocus SHDSL 

G703 through the application by connecting the application to 

the earth and setting strap ST1. 

Straps ST3, ST4 and ST5 

Using straps ST3, ST4 and ST5 you can … 

• select which connector you want to use: the RJ45 connector or the BNC connectors. 

• choose whether the shield of the TX-IN BNC connector is connected to the PGN or not. 

Function ST3 strap position ST4 strap position ST5 strap position 

RJ45 (default) 2-3 2-3 2-3 

BNC with TX-IN shield 

connected to PGND 

1-2 1-2 1-2 

BNC with TX-IN shield 

isolated from PGND 

(default) 

1-2 1-2 2-3 


• DIP switch and strap location on the Crocus SHDSL G703 motherboard, refer to 3.1.1 - The TTmotherboard 

on page 35.


User manual 


• changing DIP switch and strap settings on the Crocus SHDSL G703, refer to 3.1.4 - Changing DIP 

switch and strap settings of the TT on page 39.


User manual 


3.1.4 Changing DIP switch and strap settings of the TT 

To change the DIP switch and/or strap settings of the Crocus SHDSL G703, proceed as follows: 

Step 

Action 

1 Switch the Crocus SHDSL G703 off. 

2 Disconnect the Crocus SHDSL G703 from the mains. 

3 Unscrew the two screws located at the back of the Crocus SHDSL G703. 

4 Remove the cover as follows: 

1. Carefully lift the back of the cover a few centimetres. 

2. Gently pull the cover backwards from under the nose of the Crocus SHDSL G703. 

5 Change the DIP switch and/or strap settings. 

6 Replace the cover and close tight. 

7 Fasten the two screws located at the back of the Crocus SHDSL G703. 

8 Reconnect the Crocus SHDSL G703 to the mains. 

9 Switch the Crocus SHDSL G703 on.


User manual 

DIP switches and straps of the Crocus SHDSL G703


User manual 

Maintaining the Crocus SHDSL G703 

4 Maintaining the Crocus SHDSL G703 

Once you installed the Crocus SHDSL G703, you can proceed with the configuration. You can do this 

using any of the management tools introduced in 1.6 - Maintenance and management tools connection 

possibilities on page 11. 

This chapter briefly highlights two of those management tools: the Total Maintenance Application (TMA). 

It gives an introduction and describes how to start a management session on the Crocus SHDSL G703. 

Furthermore, it also introduces the terminology concerning the management of a OneAccess device. 


• 4.1 - Starting TMA on the Crocus SHDSL G703 on page 42 

• 4.2 - Introducing the management attributes of the Crocus SHDSL G703 on page 47


User manual 


4.1 Starting TMA on the Crocus SHDSL G703 

This section introduces the Total Maintenance Applications (TMA). Then it explains how you can start a 

TMA session on the Crocus SHDSL G703. 

The following gives an overview of this section: 

• 4.1.1 - Introducing TMA on page 43 

• 4.1.2 - Starting a TMA session through the control connector on page 44 

• 4.1.3 - Starting a TMA session through a management concentrator on page 46


User manual 


4.1.1 Introducing TMA 

What is the Total Maintenance Application 

TMA is a free Windows software package that enables you to maintain the Crocus SHDSL G703, i.e. to 

access its configuration attributes and look at status, performance and alarm information using a user 

friendly graphical user interface. 

TMA is an excellent tool for complete management of the OneAccess access devices. When using TMA 

in combination with a network management system such as HP OpenView, complete networks can be 

managed from one central site. 

Consult the TMA user manual to install it and get acquainted with the TMA user interface. 

You will need a new version of the model file distribution if changes have been made to the attributes of 

the Crocus SHDSL G703. The most recent model files can always be downloaded from the OneAccess 

web site at www.oneaccess-net.com/telindus/downloads → Download Center. 

How to connect TMA 

There are two ways to establish a connection between the computer running TMA and the Crocus 

SHDSL G703: 

• over a serial connection, through the control connector of the Crocus SHDSL G703. 

• over an IP or a serial connection, through a management concentrator.


User manual 


4.1.2 Starting a TMA session through the control connector 

To establish a connection between the computer running TMA and the Crocus SHDSL G703 through 

the control connector, proceed as follows: 

Step 

Action 

1 Connect a serial port of your computer 

(e.g. COM1) through a 

straight DB9 male - female cable 

with the control connector of the 

Crocus modem. 

2 Start TMA. 

3 In the TMA window, either … 

• select from the menu bar: Connect → Device… 

• or press the shortcut key: Ctrl+N 

• or press on the Connect to device button: 

The Connect (to a device) window is being displayed as 

in the following figure: 

4 In the Connect (to a device) window, configure the following parameters: 

• Select the option Serial, and specify the COM port of your computer the Crocus 

SHDSL G703 is connected to. 

• If a password has previously been configured in the Crocus SHDSL G703 then also 

fill in the password field. 

5 If the necessary parameters are filled in, press the Next > button.


User manual 


Step 

Action 

6 In the TMA window, either … 

• select from the menu bar: Connect → Select 

device… 

• or press the shortcut key: Ctrl+D 

• or press on the Select device button: 

The Connect (select a device) window is being 

displayed as in the following figure: 

7 In order to connect to … 

• the local Crocus SHDSL G703, choose On device. 

• the remote Crocus SHDSL G703, choose After device and enter relative NMS 

address 1 or higher. 

If a password has previously been configured in the Crocus SHDSL G703 then also fill in 

the password field. 

8 If the necessary parameters are filled in, press the Finish button. 

9 After a couple of seconds, the attributes of the selected Crocus SHDSL G703 appear in 

the TMA window.


User manual 


4.1.3 Starting a TMA session through a management concentrator 

On central locations with many access devices, the Crocus SHDSL G703 can be connected to a management 

concentrator (e.g. Orchid 1003 LAN or 1035 Orchid). In this case the management concentrator 

is a proxy device for the Crocus SHDSL G703. This means you can connect TMA to the Crocus 

SHDSL G703 through the management concentrator. 

What is more, the management concentrator can act as an IP proxy device for the Crocus SHDSL G703. 

The IP address related to the Crocus SHDSL G703 is defined in the management concentrator. 

Refer to the manual of the management concentrator for more information on the configuration and management 

capabilities of this device.


User manual 


4.2 Introducing the management attributes of the Crocus SHDSL 

G703 

This section gives an introduction to the management attributes of the Crocus SHDSL G703. It introduces 

terms such as containment tree, group, object, attribute, value and action. 


• 4.2.1 - Containment tree terminology on page 48 

• 4.2.2 - The Crocus SHDSL G703 containment tree on page 50 

• 4.2.3 - Crocus SHDSL G703 attribute overview on page 51


User manual 


4.2.1 Containment tree terminology 

The following figure depicts the TMA window containing the Crocus SHDSL G703 containment tree.


User manual 


The following table explains the terminology associated with the containment tree. 

Term 

containment 

tree 

object 

attribute 

value 

structured 

value 

group 

action 

Description 

The containment tree represents the hierarchical structure of the Crocus SHDSL G703. 

It is composed of a number of objects that are ordered in a tree. This tree resembles a 

Windows directory structure: 

• it is also a levelled structure, with nodes which can be expanded or reduced 

• the containment tree objects can be compared with file folders 

• the objects contain attributes like file folders contain files. 

An object represents a physical interface, an application or a combination of both. Each 

object has its own set of attributes. 

Example: 

The top object crocusShdslTtRpG703 contains the sub object line. On its turn, the sub object 

line contains the sub object linePair [1]. This object contains all the attributes concerning the 

line pair. E.g. the status attribute lineAttenuation (dB). 

An attribute is a parameter related to a certain object. It has a certain value. 

Example: 

The object line contains the attribute channel, which has the values central and remote. 

An attribute has a certain value which is … 

• changeable in case of a configuration attribute (provided you have write access) 

• read only in case of a status, performance and alarm attribute. 

Example: 

The configuration attribute channel can be set to the value central or remote. 

Some attribute values contain underlying values: a structured value. These values are 

displayed in the structured value window. If an attribute contains structured values then 

a bit string, or is displayed after the attribute. 

Example: 

The alarmLevel attribute contains a structured value which displays alarms and their corresponding 

priority level. 

Groups assemble a set of attributes related by functionality. There are four groups in 

TMA, which correspond with the four tabs in the attribute window: 

• configuration 

• status 

• performance 

• alarms. 

A group in combination with an object may have actions assigned to them. These actions 

are displayed in the action window. 

Example: 

The Cold Boot action only appears when the top object crocusShdslTtRpG703 is selected in 

combination with the group Configuration.


User manual 


4.2.2 The Crocus SHDSL G703 containment tree 

The following table lists the different objects of the Crocus SHDSL G703 containment tree. 

Object 

This object contains … 

> crocusShdslTtRpG703 the general system attributes. It is the top object in the containment tree. 

E.g. the status attribute sysUpTime: 00005d 02h 53m 16s. 

>> line the general line attributes. 

E.g. the configuration attribute channel. 

>>> linePair[ ] the specific line pair attributes. 

E.g. the status attribute lineAttenuation (dB). 

>> g703 the DTE interface attributes of the G703 interface. 

E.g. the configuration attribute clocking. 

>> management the network management attributes. 

E.g. the configuration attribute consoleNoTrafficTimeOut. 

>> operatingSystem the operating system attributes. 

E.g. the performance attribute currUsedProcPower (%). 

>> fileSystem the file system attributes. 

E.g. the status attribute fileList


User manual 


4.2.3 Crocus SHDSL G703 attribute overview 

The reference part of this manual explains all the attributes of the Crocus SHDSL G703. One chapter 

describes one group of attributes: 

• chapter 6 describes the configuration attributes 

• chapter 7 describes the status attributes 

• chapter 8 describes the performance attributes 

• chapter 9 describes the alarm attributes.


User manual 

Maintaining the Crocus SHDSL G703


User manual 

Step-by-step configuration 

5 Step-by-step configuration 

This chapter describes in a step-by-step manner how to perform a basic configuration on Crocus SHDSL 

G703. 

You are advised to read this chapter in a sequential manner, from the beginning to the end, without skipping 

any part. By doing so, your Crocus SHDSL G703 will be completely configured and ready for use 

when you reach the end of this chapter. 


• 5.1 - Configuring the basic line parameters on page 54 

• 5.2 - Configuring EOC handling on page 57 

• 5.3 - Configuring the timing mode on page 64 

• 5.4 - Clocking of Crocus devices to access PDH and SDH networks on page 65 

• 5.5 - Configuring the clocking mode on page 82 

• 5.6 - Configuring the minimum line speed on page 87 

• 5.7 - Configuring framing and time slots on page 93 

• 5.8 - Low speed limitations on the G703 interfaces on page 97 

• 5.9 - Configuring the interface specific attributes on page 98 

• 5.10 - Configuring the management attributes on page 99 

• 5.11 - Configuring passwords on page 111 

• 5.12 - Executing configuration actions on page 113 

• 5.13 - Troubleshooting the Crocus SHDSL G703 on page 118 

• 5.14 - Crocus SHDSL G703 compatibility with other SHDSL devices on page 119 

For a complete overview of the attributes of the Crocus SHDSL G703, refer to the reference manual.


User manual 


5.1 Configuring the basic line parameters 

crocusShdslTtRpG703/line/channel 

Default: remote 

Range: remote / central 

The channel attribute defines which modem is the central and 

which the remote modem. I.e. it determines which modem acts as master and which as slave during the 

synchronisation procedure of the modem. 

The default channel setting of a TT is remote, while that of a CV is central. Therefore there will never be 

a synchronisation problem when a CV and a TT are used in a regular set-up, the CV at the backbone 

side and the TT at the customer side. 

• If two TTs are used at each end of the data link, make sure to change the channel attribute of one of 

the TTs into central. 

• If two CVs are used at each end of the data link, make sure to change the channel attribute of one of 

the CVs into remote. 

crocusShdslTtRpG703/line/region 

The region attribute defines which S-HDSL standard is used: 

Default:annexB 

Range: enumerated, see below 

Value 

annexA 

annexB 

auto 

Description 

The American S-HDSL standard is used. 

The European S-HDSL standard is used. 

The S-HDSL standard is selected automatically. 

For compatibility with other SHDSL devices, setting this attribute to the correct value might be essential. 

Refer to 5.14 - Crocus SHDSL G703 compatibility with other SHDSL devices on page 119.


User manual 


crocusShdslTtRpG703/line/mode 

Default:auto 

Range: singlePair, dualPair 

This attribute is only present on the Crocus SHDSL G703 2P (2 pair) version. 

Use the mode attribute to select between single pair or dual pair operation. 

When you change the mode attribute, then make sure that you use the correct speed attribute to set the 

user speed: 

If the mode attribute is set to … 

singlePair, 

dualPair, 

then use the attribute … 

speed to configure the user speed. 

speed2P to configure the user speed.


User manual 


crocusShdslTtRpG703/line/eocChannel 

Default:itu-G.991.2 

Range: itu-G.991.2 / proprietary 

Use the eocChannel attribute to determine how the checksum of Embedded 

Operations Channel (EOC) messages is calculated. Make sure that on both the central and the 

remote device the eocChannel attribute is set to the same value. 

The eocChannel attribute has the following values: 

Value 

proprietary 

itu-G.991.2 

Description 

The checksum is calculated using a proprietary method. 

The checksum is calculated using the G.SHDSL standard method. 

For compatibility with other SHDSL devices, setting this attribute to the correct value might be essential. 



User manual 


5.2 Configuring EOC handling 

This section explains what EOC is. Then it explains how you can configure the handling of the EOC messages. 

Finally, it discusses which information is retrieved depending on the setting of the eocHandling 

attribute. 

The following gives an overview of this section. 

• 5.2.1 - What is EOC on page 58 

• 5.2.2 - The EOC handling attribute on page 59 

• 5.2.3 - Discovering devices on the SHDSL line on page 60 

• 5.2.4 - EOC retrieved information on page 60


User manual 


5.2.1 What is EOC 

SHDSL devices can communicate with each other through the Embedded Operations Channel (EOC). 

For instance the Crocus SHDSL G703 can send the following types of EOC requests: 

• inventory, to get information (manufacturer, release, etc.) about the remote SHDSL device, 

• enable / disable network loop-backs on the remote SHDSL device, 

• retrieve statistics or failure information (SNR Margin, loop attenuation, number of CRC errors, etc.). 

The EOC messages are defined in G.991.2 to provide interoperability.


User manual 


5.2.2 The EOC handling attribute 

crocusShdslTtRpG703/line/eocHandling 

Use the eocHandling attribute to define the handling of the EOC messages. 

The eocHandling attribute has the following values: 

Default:none 


Value 

passive 

Description 

In this mode, the Crocus SHDSL G703 will never send any spontaneous standard 

EOC messages. It will only answer to standard EOC requests coming from the 

other side. Also, after getting into datastate, no OneAccess specific EOC data will 

be sent the first 2 minutes, unless the device has received a OneAccess specific 

frame from the other side (e.g. o10 data, or a test or configuration frame). 

Use this value when the Crocus SHDSL G703 is connected to the 2300. 

none 

discovery 

inventory 

info 

alarmConfiguration 

The Crocus SHDSL G703 does not send any spontaneous EOC requests, except 

for discovery probes, they are still sent. The Crocus SHDSL G703 will also answer 

to EOC requests coming from other SHDSL devices. 

The Crocus SHDSL G703 "scans" the SHDSL line. For every device it discovers, 

it adds an object to the containment tree. Refer to 5.2.3 - Discovering devices on 

the SHDSL line on page 60. 

Then the Crocus SHDSL G703 retrieves information from these devices and displays 

it in the corresponding objects. Exactly which information is retrieved 

depends on the setting of the eocHandling attribute. Refer to 5.2.4 - EOC retrieved 

information on page 60. 

Also in this case the Crocus SHDSL G703 "scans" the SHDSL line, adds the 

objects to the containment tree and retrieves information from the devices. Refer 

to 5.2.3 - Discovering devices on the SHDSL line on page 60 and 5.2.4 - EOC 

retrieved information on page 60. 

Additionally, the central 1 SHDSL device forces the remote 2 SHDSL device and 

any intermediary repeater to use the link alarm thresholds lineAttenuation and signal- 

Noise as configured on the central device in the attribute line/linkAlarmThresholds. In 

other words, the settings of the lineAttenuation and signalNoise on the central device 

overrule those of the remote device and repeaters. 

Refer to crocusShdslTtRpG703/line/linkAlarmThresholds on page 140 for more 

information. 

1. The central device is the device on which the channel attribute is set to central. 

2. The remote device is the device on which the channel attribute is set to remote.


User manual 


5.2.3 Discovering devices on the SHDSL line 

When you change the eocHandling attribute from none to any other value, the Crocus SHDSL G703 starts 

"scanning" the SHDSL line in order to determine which devices are present between itself and its remote 

counterpart. When the scan is finished, some new objects are added to the containment tree on the 

same level as the line object: 

• If one or more repeaters are present on the SHDSL line, a repeater[ ] object is added for every repeater. 

• For the remote counterpart, an end object is added. 

The new objects are not added instantaneously. It can take up to 5 minutes before these objects appear 

in the containment tree. 

For example, suppose you have a link with a Crocus SHDSL G703 as central device, a 1421 SHDSL 

Router as remote device and one Crocus SHDSL G703 Repeater in between. Suppose you set the 

eocHandling attribute to discovery. In that case the one repeater[ ] object and an end object is added to the 

containment tree as can be seen in the screenshot: 

The first discovered repeater will have id 3, the second one will have id 4, etc. 

5.2.4 EOC retrieved information 

As said before, exactly which information is retrieved from the remote SHDSL device(s) through the EOC 

channel depends on the setting of the eocHandling attribute. 

This section gives an overview in which case which information is retrieved: 

• EOC status information, refer to EOC status information. 

• EOC performance information, refer to EOC performance information. 

• EOC alarm information, refer to EOC alarm information.


User manual 


EOC status information 

EOC status information Does the attribute or element display relevant information in case eocHandling is set to … 

Object 

crocusShdslTtRpG7 

03/… 

Attribute 

(Element) 

none/passive discovery inventory info alarmConfiguration 

line eocAlarmThresholds 

(lineAttenuation, signal- 

Noise) 

No. The value is 

always 0.0. 

• On the central 1 : yes. The values are those as set in the linkAlarmThresholds 

attribute. 

• On the remote 2 : no. The value is always 0.0. 

Yes. The values are 

those as set in the linkAlarmThresholds 

attribute 

on the central device. 3 

numDiscoveredRepeaters Yes. 

repeater[ ] 

or 

end 

vendorId 

(countryCode, provider- 

Code, vendorSpecific) 

No repeater[ ] or 

end object is created. 

Yes. 

vendorModel No. Yes. 

vendorSerial No. Yes. 

vendorSoftVersion No. Yes. 

eocSoftVersion Yes. 

shdslVersion Yes. 

eocState Yes. 

eocAlarmThresholds 

(lineAttenuation, signal- 

Noise) 

No. The value is always 0.0. Yes. The values are 


attribute 

on the remote device. 

Yes. The values are 


attribute 

on the central device. 

repeater[ ]/linePair[ ] 

or 

end/linePair[ ] 

lineAttenuation No repeater[ ] or 


signalNoise 

No. The value is always 0.0. Yes. The values are the actual line attenuation 

and signal noise as measured on the remote 

device. 


2. The remote device is the device on which the channel attribute is set to remote. 

3. Refer to 5.2.2 - The EOC handling attribute on page 59 for more information on the alarmConfiguration value.


User manual 


EOC performance information 

EOC performance information Does the attribute or element display relevant information in case eocHandling is set to … 

Object 


03/… 

Attribute none discovery inventory info alarmConfiguration 


or 


lineParameters No repeater[ ] or 


performance 

h2LineParameters 

h2Performance 


No. The value is always 0.0. Yes. The values are the same as those on the 

remote device. 

Note that in this case the sysUpTime is not the 

elapsed time since the last cold boot, but the 

elapsed time since the creation of the repeater[ ] or 

end object. 

h24Performance 

d7LineParameters 

d7Performance


User manual 


EOC alarm information 

EOC alarm information Does the attribute or element display relevant information in case eocHandling is set to … 

Object 


03/… 

Attribute none discovery inventory info alarmConfiguration 

line/linePair[ ] lineAttenuation The thresholds as configured in the linkAlarmThresholds attribute on the local device 

signalNoise 

are used to generate the alarms. 

The thresholds as configured 

in the linkAlarm- 

Thresholds attribute on 

the central 1 device are 

used to generate the 

alarms 2 . 


or 


lineAttenuation No repeater[ ] or 


signalNoise 

No alarms are generated. The thresholds as configured 



the local device are 


alarms. 

The thresholds as configured 



the central device are 


alarms. 

errSecExceeded The thresholds as configured 

in the linkAlarmsevErrSecExceeded 


the local device are 


alarms. 


2. Refer to 5.2.2 - The EOC handling attribute on page 59 for more information on the alarmConfiguration value.


User manual 


5.3 Configuring the timing mode 

crocusShdslTtRpG703/line/timingMode 

Use the timingMode attribute to set the timing mode. 

The Crocus SHDSL G703 has two clock sources: 

• one takes care of the clocking on the SHDSL line. 

• one takes care of the clocking on the modular user interface. 

Using the timingMode attribute you can define whether these two clocks run independent from each other 

(i.e. plesiochronous mode) or whether they are "coupled" with each other (i.e. synchronous mode). 

The timingMode attribute has the following values: 

Default:plesiochronous 

Range: synchronous / plesiochronous 

Value 

plesiochronous 

synchronous 

Description 

In this mode each SHDSL frame has 0 or 4 stuffing bits to compensate clock deviations 

towards the user interface clock. In this mode, all possible clocking modes 

can be selected. 

In this mode the SHDSL frame does not have stuffing bits to compensate clock 

deviations towards the user interface clock. In this case only internal and slave 

receive clocking is allowed. What is more, internal clocking is only allowed at one 

side of the link (e.g. the central side) and slave receive clocking at the other side 

(e.g. the remote side). 

Synchronous mode is the typical timing mode in DSLAM set-ups. 

• If you set the framing attribute to framed, then the Crocus SHDSL G703 always operates in plesiochronous 

mode regardless of the setting of the timingMode attribute. 

• You always have to work in the same timing mode at both sides of the link. In other words: 

- central: synchronous - remote: synchronous → allowed 

- central: plesiochronous - remote: plesiochronous → allowed 

- central: synchronous - remote: plesiochronous or vice versa → not allowed 

• For compatibility with other SHDSL devices, setting this attribute to the correct value might be essential. 



User manual 


5.4 Clocking of Crocus devices to access PDH and SDH networks 

This section explains the principles of network clocking and is a guideline for configuring the Crocus 

SHDSL G703 to interface to the carrier networks. 

A good knowledge and understanding about clocking mechanisms is essential to correctly build error 

free synchronous networks, connecting end users to PDH and SDH infrastructures. 

As this section gives a general explanation about clocking, section 5.5 - Configuring the clocking mode 

on page 82 actually describes how to configure the clocking mode on the Crocus SHDSL G703. 


• 5.4.1 - Introduction on page 66 

• 5.4.2 - Network clocking principles on page 67 

• 5.4.3 - The Plesiochronous Digital Hierarchy (PDH) networks on page 68 

• 5.4.4 - The Synchronous Digital Hierarchy (SDH) networks on page 70 

• 5.4.5 - Access to PDH networks on page 73 

• 5.4.6 - Access to SDH networks on page 76 

• 5.4.7 - Synchronous interfaces on page 80


User manual 


5.4.1 Introduction 

Since transmission and switching in carrier networks has become digital, network synchronisation has 

an increasing importance in telecommunications. 

Basically there was no need for network synchronisation to interconnect analogue switching machines 

over digital transport networks. Transmission equipment based on the Plesiochronous Digital Hierarchy 

(PDH) must not be synchronised, it allows multiplexing of asynchronous channels with substantial frequency 

offsets using the bit justification technique. 

When digital switching machines such as ISDN exchanges and cross-connect switches were introduced, 

problems arose with asynchronous architectures as PDH because digital switching equipment requires 

to be synchronised in order to avoid slips. By the introduction of the circuit switched data networks, there 

was a need of more stringent synchronisation requirements. 

In the ‘90s, the ongoing spreading of Synchronous Digital Hierarchy (SDH) technology in transmission 

networks has created a need for adequate network synchronisation facilities. For this reason, network 

operators have set up synchronisation networks. 

In this section, clocking principles for access to and data transfer over PDH and SDH transmission networks 

are explained.


User manual 


5.4.2 Network clocking principles 

Central clock 

To guarantee good synchronisation in digital networks, all network elements are synchronised to a central 

2.048 kHz clock with long term accuracy. This central clock is generated by a high precision Primary 

Reference Clock (PRC) with an accuracy of 1x10-11 or better with verification to Coordinated Universal 

Time (UTC) as specified in ITU-T Recommendation G.811. 

A PRC can be realised as an autonomous clock or can be controlled by UTC-derived precision signals 

received from a radio or satellite system (GPS). 

Hierarchical structure 

To distribute this clock through the network, a hierarchical structure is defined in ITU-T standards G.812 

& G.813. Refer to the following figure: 

The PRC is transported via the clock network to the slave units. This clock signal is regenerated in the 

SSUs and SECs with the aid of phase-locked loops (PLLs). If the clock supply fails, the slave unit applies 

the stored frequency correction to keep a relatively accurate clock signal. 

The clock signal paths through the network can be the same as those used for the data transport. 

Station clock 

Modern synchronisation networks are based on the concept of a building clock, this is a slave clock unit 

as the SSUs and SECs, that supplies timing to all the equipment deployed in that location, including digital 

exchanges, cross-connects, terminal equipment and multiplexers. This clock signal is what we call 

station clock.


User manual 


5.4.3 The Plesiochronous Digital Hierarchy (PDH) networks 

Asynchronous tributaries 

PDH systems allow multiplexing of asynchronous tributaries with substantial frequency offsets based on 

bit justification. Therefore PDH networks do not need to be synchronised. Every equipment clock is independent 

from the others, but their frequencies are kept close to the nominal values within a specified 

tolerance (for example: +/- 50 ppm at 2 Mbit/s). 

PDH systems are transparent to the timing content of the transported digital signals. This means that, 

despite the fact that the multiplexer clocks are independent, the transported signal keeps its frequency, 

only gathering some jitter due to transmission lines and justification. The bit justification technique allows 

to transfer the timing content of a digital signal across a transmission chain where clocks are asynchronous, 

as shown in the figure below.


User manual 


Timing 

Because E1 signals coming from PCM multiplexers or cross connect switches need to be synchronised 

to avoid slips, this equipment is enslaved to a master clock, delivered by a Primary Reference Clock 

(PRC) via the clock synchronisation network. The synchronous E1 signals are multiplexed into asynchronous 

E2 and further on in E3 and E4 signals. E2, E3 and E4 are asynchronous multiplex signals 

with the 2M timing signal embedded. This allows transferring 2 Mbps timing across PDH networks to synchronise 

clocks located in far locations. 

Gateways 

By the introduction of the PDH infrastructure, two different multiplex stages were defined: one based on 

a primary rate of 2 Mbit/s and one based on 1,5 Mbit/s as used in North America and Japan. Gateways 

between these networks were very difficult and expensive to realize. 

Disadvantages 

Inherent to plesiochronous transport is the generation of important jitter and wander at the tributary interfaces. 

Another disadvantage of PDH is that, once multiplexed, there is no simple way to extract an E1 bearer 

without fully demultiplexing down from the E4 level towards E1, requiring a complete hierarchy of multiplexers.


User manual 


5.4.4 The Synchronous Digital Hierarchy (SDH) networks 

SDH hierarchy 

To eliminate the disadvantages of the PDH infrastructure, the SDH hierarchy was developed, bringing 

the following advantages: 

• high transmission rates, up to 10 Gbit/s over fiber optic links 

• more efficient and flexible add & drop function 

• high availability, reliability and robustness 

• multi-service platform: able to handle PSTN, ISDN, Frame Relay, ATM, IP, etc. 

• interfaces are globally standardized, easier to interconnect carriers 

The basic SDH frame is called a Synchronous Transport Module (STM-N), in which heterogeneous 

asynchronous and synchronous tributary channels as PDH and ATM can be mapped. Frame speeds 

can be between 52 Mbit/s and 10 Gbit/s. 

The basic package unit for tributary channels is the container C-n. For each PDH speed a special container 

is provided. These containers are much larger than the payload to be transported, the remaining 

capacity is used for justification.


User manual 


Network elements 

Current SDH networks are build with four different types of network elements: 

• regenerators: regenerate the clock and amplitude relationships of the incoming data signals. 

• terminal multiplexers: combine asynchronous and synchronous input signals into higher bit rate STM- 

N signals. 

• add & drop multiplexers: asynchronous and lower speed synchronous signals can be extracted from 

or inserted into higher speed SDH bitstreams. 

• digital cross-connects (DXC): allows mapping of PDH channels in SDH virtual containers as well as 

switching of various containers.


User manual 


Synchronisation 

In networks using SDH transport infrastructure, not only primary rate multiplexers and switching equipment 

are synchronized, but also the nodes of the SDH transport network, limiting jitter and wander generation 

at the interfaces. 

Redundant ring structures 

SDH infrastructures typically are hybrid communication networks, build in redundant ring structures with 

various asynchronous and synchronous tributaries as in the example below.


User manual 


5.4.5 Access to PDH networks 

Synchronisation on the same clock 

As the 2 Mbps and Nx64 Kbps signals in the PDH networks are synchronized on the 2.048 kHz Primary 

Reference Clock, also all access devices must be synchronized on the same clock. This can be done by 

applying the network clock to the “station clock” input of the devices or by operating in “external clock”. 

Therefore these interfaces are synchronous, allowing transporting clock from one device to another. 

Clock signals can be transferred separately from the data signals (e.g. station clock) or can be encoded 

in the data, as done in the G.703 interfaces which are typically used to connect to PDH/SDH infrastructures.


User manual 


Accessing PDH networks - examples 

• Example 1: typical Nx64 Kbps connections 

Typical Nx64 Kbps connections to a PDH infrastructure are shown below. As the backbone imposes the 

clock, the equipment connected to the network necessarily operates in external or station clock, the end 

points in slave receive. In external clock, the modem clock is derived from the incoming G.703 signal, in 

case of station clock, the clock signal is transferred separately.


User manual 


• Example 2: accessing PDH networks using a Crocus SHDSL QUAD DXC 

The Crocus SHDSL QUAD DXC is perfectly suitable to be used in PDH environment as it can use the 

station clock or can slave on one of the four E1 interfaces. The most convenient configuration is to use 

the station clock as master and fallback to the E1 interfaces if the station clock fails. 

If no station clock is available, the QUAD has to search for a clock on the E1 interfaces as shown in the 

next picture.


User manual 


5.4.6 Access to SDH networks 

Asynchronous or synchronous 

Channel inputs on Add & Drop Multiplexers in SDH networks can be asynchronous or synchronous. The 

most common way to connect PDH tributaries to ADMs is asynchronous, also for the 2.048 Kbps signals, 

without giving a clock at his interfaces. This implicates that, when we interconnect two end-users over a 

SDH backbone, the clock must be generated by other means. This can be the station clock, derived from 

the PRC, or an internal clock generator from one of the transmission devices, such as modems, or by 

the end user application. This clock generator must operate within the required specifications regarding 

accuracy and stability, for example +/- 50 ppm at 2.048 Kbps. 

Typical 2 Mbit/s connections 

Some typical 2 Mbit/s connections to a SDH infrastructure are shown below. It is clear that the clock configuration 

at the end-points depends on the type of used interfaces and the end-user equipment.


User manual 


Modems with integrated cross-connect functionalities 

Special attention must be paid in case modems with integrated cross-connect functionalities are used. 

As a DXC supports only one clock to synchronize all ports, all modems connected to the DXC must use 

this same clock. In this case the use of the station clock is strongly advised. Refer to the figure below for 

an example.


User manual 


Accessing SDH networks - examples 

Below some examples of topologies to access SDH networks are given, using different types of access 

equipment. To keep the drawings orderly, the ADM symbols are skipped. It must be clear that these 

drawings are just some examples and do not exclude many other clock configurations and combinations 

in access topologies. 

• Example 1: accessing SDH networks using the Crocus SHDSL QUAD DXC 

When using the Crocus SHDSL QUAD DXC, only one clock can be used by all interfaces of this card. 

As shown below, this clock can be the station clock or the internal clock. All end-to-end connections running 

over the QUAD are slaved on this clock: 

- Using the station clock: 

- Using the internal clock: 

As in an SDH network the connections are made to an ADM and not to a DXC, clock slaving on the E1 

ports of the SHDSL QUAD is not recommended and this also means that end-user equipment should 

not generate the clock.


User manual 


• Example 2: accessing SDH networks using a Crocus SHDSL CV or 2300 

In case a Crocus SHDSL CV or 2300 is installed, each interface may have an independent clocking, 

allowing end-user equipment to generate the clock. 

- Using a Crocus SHDSL CV: 

- Using a 2300:


User manual 


5.4.7 Synchronous interfaces 

Data transfer 

On a synchronous interface, data transfer between DTE and DCE is done at the rhythm of a clock signal. 

This timing signal is used to sample the transmit data in the transmitter of the DCE. The transmitter also 

uses this timing signal to modulate his carrier in case of a voice band modem or to encode the data in 

case of a baseband modem. This means that the clock frequency of the transmit clock is transported by 

the line signal to the remote end. The transport of the synchronous user data over the link can be synchronous 

or plesiochronous. 

In the receiver at the remote end, the line signal is demodulated or decoded and receive clock is derived 

from the received line signal. By doing this, the receive clock has the same frequency as the transmit 

clock at the other side of the link. In this way the transmitter at one side and the receiver at the other side 

of the link are perfectly synchronized.


User manual 


Exchange of clock signals 

The way clock signals are exchanged between DTE and DCE depends on the type of interface: 

• V24, V35, V36, RS530, HSSI: these interfaces have separated clock signals to synchronize transmit 

(TxClk or ExClk) and receive (RxClk) data: 

• X21 interface uses only one clock signal (S or X) to synchronize both transmit and receive data: 

• G703 interface uses codirectional timing, this means that clock information is encoded in the data signal:


User manual 


5.5 Configuring the clocking mode 

This section explains how to configure the clocking mode on the Crocus SHDSL G703. It also explains 

how the auto clocking mechanism works. The following gives an overview of this section. 

• 5.5.1 - Configuring the clocking mode on the Crocus SHDSL G703 on page 83 

• 5.5.2 - Schematic overview of the different clocking modes for G703 type of interfaces on page 84 

• 5.5.3 - Possible clocking modes versus DTE interface on page 86


User manual 


5.5.1 Configuring the clocking mode on the Crocus SHDSL G703 

The location of the clocking attribute in the Crocus SHDSL G703 containment tree is: 

crocusShdslTtRpG703/g703/clocking 

Use the clocking attribute to select a clocking mode. The following table 

gives an overview: 

Default:external 

Range: internal/external 

Clocking mode 

internal 

external 

Description 

The Crocus SHDSL G703 generates the transmit clock signal and sends it to the 

application via the R circuit. Internal clocking mode implies that the applications on 

both sides of the link should be in slave receive clocking mode. In other words, 

there can be only one master clock in a G703 system. 

The application takes its timing from the network. The extracted clock is sent 

together with the TxD over the T circuit to the DCE. If no valid receive clock is found 

while in external clock mode, the modem switches to internal clock mode.


User manual 


5.5.2 Schematic overview of the different clocking modes for G703 type of 

interfaces 

One encoded signal 

As G703 interfaces are codirectional interfaces, they transport both data and clock in the same encoded 

signal. On this way they can transport clock information from a higher network level to a lower network 

level in the digital hierarchy. For this reason, the default configuration of G703 interfaces is external 

clock. 

G703 interfaces are typically used to give access to carrier backbones and to interconnect backbone 

equipment such as cross-connect switches (DXC), TDM multiplexers and PABXs in PDH infrastructures. 

In these networks, only one master clock is allowed to synchronize all devices at the E1 level (2.048 

kbps). 

Crocus SHDSL TT vs. Crocus SHDSL CV 

On a Crocus table-top modem, the G703 interface can be configured for internal or external clock operation. 

A card version modem also supports the use of a station clock that can be applied via the backplane 

of the cardnest. When station clock is selected, also a backup clock can be provided in case the 

station clock is not present. 

Clock functionalities 

Depending on the type of equipment, the clock functionalities can differ: when multiple modems and multiple 

interfaces are available on the same device, there is a main difference in clock functionalities 

depending on the fact of a DXC feature is present or not. 

If no DXC is present, the clocking on all interfaces is independent and so we may have different clocking 

on each interface (Crocus SHDSL TWIN, 2300). In case a DXC is present only one clock is allowed for 

all interfaces (Crocus SHDSL QUAD DXC).


User manual 


Crocus SHDSL TT 

The figures below show the relationships between clock and data in the different configurations for the 

Crocus SHDSL TT: 

The figure below show the possible configurations in TMA:


User manual 


5.5.3 Possible clocking modes versus DTE interface 

The following table gives an overview of the clocking modes which are available on the different Crocus 

SHDSL devices: 

Device 

INT 

INT ALT 

INT PREF 

SLV RCV 

SLV RCV ALT 

SLV RCV PREF 

EXT 

EXT LOOPBACK 

LINE 

STATION 

AUTO 

Crocus SHDSL TT 

Vxx/RS530/X21 X X X X X X X 

G703 X X 

DUAL PORT X X 

ROUTER X X 

Crocus SHDSL TWIN CV 

Vxx/RS530/X21 X X X X X X X 

G703 X X X 

DUAL PORT X X X 

ROUTER X X X 

Crocus SHDSL TT G703 X X 

Crocus SHDSL TT RS530 X X X X X X X 

Crocus SHDSL QUAD CV 

DXC 

2300 2 

X X X X 

X 1 

1. EXT on the Crocus SHDSL QUAD CV DXC means that the modem can be slaved on one of 

the E1 interfaces 

2. Clocking parameters on the 2300 refers to the receive clocking, refer to the 2300 manual for 

more information


User manual 


5.6 Configuring the minimum line speed 

This section starts with an important remark on setting the minimum line pair speed. Then it explains how 

to configure a minimum line speed and what the purpose is of doing this. The following gives an overview 

of this section: 

• 5.6.1 - Important remark on the minimum line pair speed on page 88 

• 5.6.2 - The minimum line pair speed attribute on page 89 

• 5.6.3 - Purpose of the minimum line pair speed on page 92


User manual 


5.6.1 Important remark on the minimum line pair speed 

If you configure the minimum line pair speed (i.e. you set the minLinePairSpeed attribute to any value different 

from ), then only one master clock is allowed in the system. 

In other words, only the following clocking combinations are allowed: 

One side 

internal 

external 

external 

station 

Other side 

always slave receive 

slave receive 

external (provided the application on both sides use the same network clock) 

station or slave receive 

Executing an ET test on both sides will not work in case both sides change their clocking modes to internal! 

Example 

The following is a perfectly legal set-up as long as the minimum line pair speed is not configured (i.e. 

minLinePairSpeed = ): 

• clocking = internalPreferred 

• speed = 640kbps 

• minLinePairSpeed = 



• minLinePairSpeed = 

However, if you set the minimum line pair speed to a value higher than the user speed, then the SHDSL 

line operates in slotted E1 mode. In that case, only one master clock is allowed in the system. So you 

would have to change the configuration to, for example: 



• minLinePairSpeed = 1024kbps 

• clocking = slaveRcvPreferred 


• minLinePairSpeed = 1024kbps 

In these general examples, serial interfaces are used, but the principle stays the same for G703 interfaces.


User manual 


5.6.2 The minimum line pair speed attribute 

Also see 5.6.1 - Important remark on the minimum line pair speed on page 88. 

The location of the minimum line pair speed attribute in the Crocus SHDSL G703 containment tree is: 

crocusShdslTtRpG703/line/minLinePairSpeed 

Use the minLinePairSpeed attribute to determine what the minimum speed on 

the line pair has to be when the Crocus SHDSL G703 trains. 

The purpose of this is: 

Default: 

Range: 192kbps up to 

2048kbps (in steps of 

64kbps) 

• To be able to set the line speed independently from the user speed. This allows easy upgrading to a 

higher user speed. 

• To be able to use less than 3 time slots (or 6 time slots on a 2 pair version).


User manual 


The minLinePairSpeed attribute has the following values: 

Value 

 

192kbps up to 

2048kbps (in steps 

of 64kbps) 

Description 

The line speed follows the user speed. 

For example, if the user speed is set to 640 kbps (speed(2P) = 640kbps), then the 

speed on the line pair equals … 

• 640 kbps in case of a Crocus SHDSL G703 1P (1 pair) version. 

• 320 kbps on each line pair in case of a Crocus SHDSL G703 2P (2 pair) version. 

The line speed no longer follows the user speed. The line trains on the speed as 

set with the minLinePairSpeed attribute. 

For example, if the user speed is set to 640 kbps (speed(2P) = 640kbps) and the minimum 

line speed is set to 1024 kbps (minLinePairSpeed = 1024kbps), then the speed 

on the line pair(s) equals 1024 kbps. (On a Crocus SHDSL G703 1P (1 pair) version 

this is also the total line speed. On a Crocus SHDSL G703 2P (2 pair) version, 

however, the total line speed then is 2048 kbps since the minLinePairSpeed attribute 

sets, as the name implies, the minimum speed on the line pair.) 

Remark 

Note that the maximum total line speed that you can set using the minLinePair- 

Speed attribute is 2048 kbps. So for a Crocus SHDSL G703 1P (1 pair) version 

you can set the minLinePairSpeed attribute to its maximum value (being 2048 

kbps). For a Crocus SHDSL G703 2P (2 pair) version, however, you can only set 

it up to 1024 kbps (which is a total line speed of 2048 kbps). If you nevertheless 

set the minLinePairSpeed attribute to a value higher than 1024 kbps, then a message 

is displayed in the messages table and the Crocus SHDSL G703 2P continues 

to operate with a total line speed of 2048 kbps.


User manual 


• Make sure that you set the minLinePairSpeed attribute to the same value on both the central and remote 

SHDSL device. 

• When using the minLinePairSpeed attribute on the central or remote SHDSL device, the user speed of 

the other device may not be set to autospeed.


User manual 


5.6.3 Purpose of the minimum line pair speed 

Easily upgrading the user speed 

You could determine in advance what the maximum speed is that can be achieved on the line (e.g. 1024 

kbps) and set the minimum line pair speed to this value (e.g. minLinePairSpeed = 1024kbps). Suppose the 

customer initially wants 256 kbps. So you set the user speed to 256 kbps (speed(2P) = 256kbps). Now when 

the customer decides he wants a higher user speed (e.g. 640kbps), then you can easily change the user 

speed to this higher speed (e.g. speed(2P) = 640kbps) without first having to determine again whether the 

line can handle this speed. What is more, the line does not have to retrain after you changed the user 

speed. So you can perform user speed upgrades in an easy, cost-efficient way. 

Low speed operation - compatibility with other SHDSL devices 

If you want to use only 1 or 2 time slots (or 2 or 4 time slots in case of a 2 pair version), then you have 

to set the minimum line pair speed to 192 kbps (minLinePairSpeed = 192kbps). This to insure correct time slot 

synchronisation on both sides. 

Low speed operation - 2 time slots and 2 applications 

If you want to use only 2 time slots (or 4 time slots in case of a 2 pair version) and each time slot carries 

the data of a different application, then you also have to set the minimum line pair speed to 192 kbps 

(minLinePairSpeed = 192kbps). This to insure that on the remote side the data is separated correctly. 

The reason is the following: 

• In case you select only 2 time slots (or 4 time slots in case of a 2 pair version) but you do not configure 

the minimum line pair speed (minLinePairSpeed = ), then the SHDSL line operates in Nx64 mode 

(refer to crocusShdslTtRpG703/line/framerType on page 166 for more information on this mode). 

Since in this case the user data has become a continuous bit stream on the SHDSL line, it is almost 

impossible to correctly separate the data from the two different applications at the remote end. 

• In case you select only 2 time slots (or 4 time slots in case of a 2 pair version) but you configure the 

minimum line pair speed to be 192 kbps (minLinePairSpeed = 192kbps), then the SHDSL line operates in 

slotted E1 mode (refer to crocusShdslTtRpG703/line/framerType on page 166 for more information 

on this mode). Since in this case the user data is also put in time slots on the SHDSL line, it is perfectly 

possible to separate the data from the two different applications at the remote end.


User manual 


5.7 Configuring framing and time slots 

This section explains how to select the framing mode and how to allocate time slots on a Crocus SHDSL 

G703. The following gives an overview of this section: 

• 5.7.1 - Selecting unframed or framed mode on page 94 

• 5.7.2 - Selecting the time slots on page 95 

• 5.7.3 - Time slot transposition on page 96


User manual 


5.7.1 Selecting unframed or framed mode 

crocusShdslTtRpG703/g703/framing 

Use the framing attribute to select between unframed or framed mode: 

Default:unframed 

Range: framed / auto / 

unframed 

Value 

unframed 

framed 

Description 

In unframed (or transparent) mode, a 2 Mbps data stream is sent transparently 

over the line. 

The attributes timeSlots and crc4Insertion are of no use in unframed mode. 

In framed (G.704 framing) mode and in case of a … 

• Crocus SHDSL G703 1P (1 pair), up to 32 time slots each containing a 64 kbps 

data stream can be sent over the line. Each 64 kbps time slot can be enabled 

or disabled. 

• Crocus SHDSL G703 2P (2 pair), up to 16 time slots pairs together containing 

a 128 kbps data stream can be sent over the line. Each 128 kbps time slot pair 

can be enabled or disabled. I.e. you always have to select an even number of 

time slots. E.g. 2, 4, 10, etc. 

Remark 

If you set the framing attribute to framed, then the Crocus SHDSL G703 always operates 

in plesiochronous mode regardless of the setting of the timingMode attribute. 

auto 

If after the training sequence the chosen line speed is … 

• 2 Mbps, then the G703 interface automatically works in unframed mode. 

• lower than 2 Mbps, then the G703 interface automatically works in framed 

mode. Which timeslots will be used, depends on the line speed and the timeslots 

configured in the timeslot attribute: 

- If the line speed is lower than the configured timeslots, then the corresponding 

number of timeslots starting from the lowest configured will be used. 

- If the line speed is higher than or equal to the configured timeslots, only the 

configured timeslots will be active. 

In all cases the timeslot attribute in the status group reflects the timeslots used. 


• In case of a Crocus SHDSL G703 2P (2 pair) version, set the framing attribute 

of either the central or remote Crocus SHDSL G703 to auto, but not of both. 

Else the 2 line pairs could train at a different speed which is not allowed. 

• The number of selected timeslots must be higher then or equal to the line speed 

to have a good configuration.


User manual 


5.7.2 Selecting the time slots 

crocusShdslTtRpG703/g703/timeSlots 

Use the timeSlots attribute to enable or disable the individual 64 kbps time 

slots in the framed data stream. 

By default, timeslot 0 is disabled and timeslots 1 up to 31 are enabled. 

Default:ts0=1, other ts=0 



• Do not enable time slot 0 in the local Crocus SHDSL G703 and a non-G703 interface in the remote 

Crocus SHDSL G703. 

• The Crocus SHDSL G703 does not work on line speeds … 

- ·64 and 128 kbps (i.e. 1 and 2 time slots) in case of a 1 pair version. 

- ·128 and 256 (i.e. 2 and 4 time slots) in case of a 2 pair version. 

• When line speeds 64 or 128 kbps are selected, the modem will train on 192 kbps (3 time slots). So 

when one timeslot is selected, the line will train on 192 kbps and there will be two dummy time slots 

added on the line. 

• When line speeds 64 or 128 kbps are selected, the modem will train on 192 kbps (3 time slots), while 

only one timeslot can be selected on the G703 interface. When an ET test is started at the side where 

auto framing (with all timeslots enabled) is set, the pattern of the ET test will be placed in 3 timeslots, 

and not in the one selected timeslot.


User manual 


5.7.3 Time slot transposition 

If at both sides of the link a G703 Nx64k interface is used, it is possible to perform a time slot transposition. 

Such a transposition is realised by setting the G703 Nx64k in framed mode and enabling at both 

sides the time slots which have to be transposed. The first time slot at the local side will be put in the first 

time slot at the remote side, the second in the second, and so on. 

Example: 

• framed mode 

• TS6, TS12, TS25 = 1 

• all other time slots = 0 

• framed mode 

• TS10, TS16, TS26 = 1 

• all other time slots = 0 

In this example, TS6 of the local Crocus SHDSL G703 is put in TS10 of the remote Crocus SHDSL G703, 

TS12 in TS16 and TS25 in TS26. A similar mechanism exists in the receive direction. 

The following figure shows the time slot transposition mechanism:


User manual 


5.8 Low speed limitations on the G703 interfaces 

When configuring low speed on the G703 interfaces, there are some limitations. The following tables 

give an overview of the possible speeds on the G703 interfaces while combining different G703 interfaces. 

The first table gives all the combinations for the 1 pair SHDSL devices, while the second table 

gives the combinations for the 2 pair SHDSL devices. 

1 Pair version 


Crocus 

SHDSL 

G703 G703 



G703 

+G703 

Nx64K 



G703 +Dual 

Port if 



G703 

+Nx64K if 

1421 


Router in 


mode 

1421 


Router in 

synchronous 

mode 



G703 G703 

N=3,4, … 

32 

N=3,4, … 

32 

N=3,4, … 

32 

N=3,4, … 

32 

N=3,4, … 

32 

2M fixed 

(unframed) 





G703 G703 



G703 

+G703 

Nx64K 



G703 +Dual 

Port if 



G703 

+Nx64K 

interface 

1421 


Router in 


mode 

1421 


Router in 

synchronous 

mode 



G703 G703 

N=6,8, … 

32 

N=6,8, … 

32 

N=6,8, … 

32 

N=6,8, … 

32 

N=6,8, … 

32 

2M fixed 

(unframed)


User manual 


5.9 Configuring the interface specific attributes 

crocusShdslTtRpG703/g703/coding 

Use the coding attribute to set the G703 interface encoding mode. Possible 

values are: 

Default:hdb3 

Range: ami / hdb3 

Value 

ami 

hdb3 

Description 

Alternate Mark Inversion is selected. This is a bipolar code with no zero substitution. 

High Density Bipolar 3 is selected. This is a modified bipolar code.With HDB3 

encoding, more than three consecutive zeroes occurring in the data are replaced 

by a substitution word. This to ensure a high pulse density. Therefore, data links 

using the HDB3 code can carry data patterns with a low 1 density. Most of the 

G703 applications use HDB3 encoding. 

crocusShdslTtRpG703/g703/crc4Insertion 

This attribute is only relevant in framed mode. 

Use the crc4Insertion attribute to determine whether the CRC-4 (cyclic redundancy check) is recalculated 

before sending it to the interface. The CRC is used to check the data integrity on the G.703 connection. 

The crc4Insertion attribute has the following possible values: 

Default:auto 


Value 

auto 

disabled 

enabled 

Description 

In auto mode, CRC-4 insertion is …· 

• disabled if the data is unframed,· 

• enabled if the data is G.704 framed. 

CRC-4 insertion is disabled. 

CRC-4 insertion is enabled.


User manual 


5.10 Configuring the management attributes 

This section explains the management attributes of the Crocus SHDSL G703. These attributes allow you 

to make all the devices in your network accessible for management from one central location. 

First this section gives you some rules of thumb and remarks concerning the management of the Crocus 

SHDSL G703 in a network. Then it explains the attributes that have an impact on the management of 

the Crocus SHDSL G703. Finally, it gives some examples of networks and how to configure the Crocus 

SHDSL G703 to make it accessible for the central management system. 


• 5.10.1 - Rules of thumb and remarks concerning management on page 100 

• 5.10.2 - Using relative or absolute addressing on page 101 

• 5.10.3 - Selecting the purpose of the control connector on page 102 

• 5.10.4 - Forwarding management data to the line and control connector on page 103 

• 5.10.5 - Configuring the management data on the line on page 105 

• 5.10.6 - Configuring the management data on a G703 interface on page 106 

• 5.10.7 - Example - management over the line and the control port on page 107 

• 5.10.8 - Example - management over the line and the E1 interface on page 109


User manual 


5.10.1 Rules of thumb and remarks concerning management 

The following lists some rules of thumb concerning the management of OneAccess devices in a network: 

• Make sure there is only one path towards the management system. Else you might get unexpected 

results (e.g. devices that do not answer to polling, answer of several devices at once when polling 

one device, etc.). 

• Once your network starts to become complex on management level (i.e. more than just in-line connections 

as depicted in Relative addressing on page 101), you are advised to use absolute addressing 

instead of relative addressing (refer to Absolute addressing on page 101). 

In practice, it is best to use absolute addressing when you configure one of the attributes listed below 

as follows: 

- ctrlPortProtocol attribute to management, 

- g703/saBits to anything else than transparent. 

• Changing the ctrlPortProtocol attribute causes the Crocus SHDSL G703 to reboot. 

• When sending management information to the three management interfaces (the line, the G703 interface 

using SA bits, and the CTRL port), a problem may occur. Due to insufficient processing power 

of the Crocus SHDSL G703, it could occur that a device connected to the Crocus SHDSL G703 cannot 

be reached anymore (on management level). 

Conclusion is that sending management information to the three management interfaces simultaneously 

is not possible, due to lack of processing power of the Crocus SHDSL G703.


User manual 


5.10.2 Using relative or absolute addressing 

In order to connect with TMA to the Crocus SHDSL G703 (refer to 4.1 - Starting TMA on the Crocus 

SHDSL G703 on page 42), you can use two addressing schemes: 

Address type 

relative 

Description 

This type of addressing is meant for a network topology where the devices are connected 

in-line on management level. I.e. with extended management connections* 

between two devices. 

To enable relative addressing, no address has to be specified in the device. In 

other words, you can leave the cms2Address attribute at its default value, being 0. 

Relative addressing 

Remark 

* An extended management connection is realised with a crossed cable between 

the control connectors of the two OneAccess devices. You also have to set the ctrl- 

PortProtocol attribute to the value management. 

absolute 

This type of addressing is meant for a network topology where the devices are not 

connected in-line on management level. I.e. when there is a digital multipoint 

device present (e.g. the Orchid DM). 

To enable absolute addressing, an address has to be specified in the device. Do 

this using the cms2Address attribute. The absolute addressing range goes from 1 up 

to 65535. Refer to crocusShdslTtRpG703/management/cms2Address on page 152. 

Absolute addressing


User manual 


5.10.3 Selecting the purpose of the control connector 

crocusShdslTtRpG703/management/ctrlPortProtocol 

Default:console 

Range: management / console 

The setting of the ctrlPortProtocol attribute depends on what you connect to 

the control connector of the Crocus SHDSL G703. This is explained in the following table: 

Value 

management 

console 

Description 

Select this value if you want to connect the control connector of the Crocus SHDSL 

G703 to …· 

• a management concentrator (e.g. the Orchid 1003 LAN or 1035 Orchid) for 

management purposes.· 

• the control connector of another OneAccess device using a crossed cable (i.e. 

back-to-back) in order to create an extended management link. For more information 

on extended management links, refer to Relative addressing on 

page 101 and Forwarding management information on page 103). 

When connecting the control connector of the Crocus SHDSL G703 to a COM port 

of your computer, you can still open a TMA session on the Crocus SHDSL G703. 

However, you can not open a CLI or ATWIN session 


G703 to a COM port of your computer in order to manage the Crocus SHDSL G703 

locally using TMA, CLI or ATWIN.


User manual 


5.10.4 Forwarding management data to the line and control connector 

crocusShdslTtRpG703/forwardTmaToCtrlPort 

Default:enabled 

Range: disabled / enabled 

Enables or disables propagation of management information to the control 

port. This allows you to cascade management information through the control port towards another 

OneAccess device. 

The forwardTmaToCtrlPort attribute is only present on the TT. 

crocusShdslTtRpG703/forwardTmaToLine 

Enables or disables propagation of management information to the line. 



If forwardTmaToLine is enabled, management data is sent over the line via a dedicated management channel 

towards the remote Crocus SHDSL. To determine which management data is forwarded over the 

line, refer to crocusShdslTtRpG703/line/management on page 142. 

If forwardTmaToLine is disabled, O10 management data can still be passed over the line: disabling forwardTmaToLine 

is not enough to avoid management loops. 

Forwarding management information 

The management system has been designed to provide access not only to the local Crocus SHDSL 

G703, but also to all remote Crocus SHDSL G703s or other OneAccess devices in a network.


User manual 


• If the attribute forwardTmaToLine is enabled on Crocus SHDSL G703 1, then management information 

can be propagated over the line (via a dedicated management channel) from Crocus SHDSL G703 

1 in site A to Crocus SHDSL G703 2 in site B. 

• If the attribute forwardTmaToCtrlPort is enabled on Crocus SHDSL G703 2 and if the control connector 

of Crocus SHDSL G703 2 is connected with a crossed cable (i.e. back-to-back) to the control connector 

of Crocus SHDSL G703 3, then the management information can also be propagated to Crocus 

SHDSL G703 3. 

• If the attribute forwardTmaToLine is enabled on Crocus SHDSL G703 3, then the management information 

can even be propagated to the remote of Crocus SHDSL G703 3. 

• Etceteras.


User manual 


5.10.5 Configuring the management data on the line 

crocusShdslTtRpG703/line/management 

Default:o10-PathManagement 


Use the management attribute to determine whether and which management 

data is forwarded over the line (also refer to crocusShdslTtRpG703/forwardTmaToLine on page 128 to enable or 

disable propagation of management information to the line). 

The management attribute has the following possible values: 

Value 

transparent 

o10Management 

pathManagement 

o10-PathManagement 

Description 

No management data is forwarded over the SHDSL line. The data is passed transparently 


This forwards the proprietary OneAccess O10 protocol over the SHDSL line. This 

allows you to manage the remote SHDSL device (and possibly other OneAccess 

devices connected to the SHDSL device). 

This forwards path management information over the SHDSL line. This allows you 

to manage complete paths instead of managing individual devices (i.e. elements).For 

more information on path management, refer to the TMA Path Management 

manual. 

This forwards both the proprietary OneAccess O10 protocol as the path management 

information over the SHDSL line.


User manual 


5.10.6 Configuring the management data on a G703 interface 

crocusShdslTtRpG703/g703/saBits 

Default:PathManagement 


Use the saBits attribute to determine whether and which management data 

is inserted in the SA-bits. If management data is inserted in the SA-bits, then it is inserted in SA registers 

SA5, SA7 and SA8. SA4 is used as a control register and contains bandwidth information. 

The saBits attribute has the following possible values: 

Value 

transparent 

o10Management 


For more information on path management, refer to the Path Management manual. 


Description 

No management data is inserted in the SA-bits. The SA-bits are passed transparently. 

This inserts the proprietary OneAccess O10 protocol in the SA-bits. This allows 

you to forward management data over the G703 interface in a similar way as you 

can over the line or the control port. This allows more flexibility in managing your 

network of OneAccess devices. 

This inserts path management information in the SA-bits. This allows you to manage 

complete paths instead of managing individual devices (i.e. elements). 

This insert both the proprietary OneAccess O10 protocol as the path management 

information in the SA-bits. 

Note that forwarding management data over the G703 interface can be very slow. The speed lies 

between 200 and 2400 bps.


User manual 


5.10.7 Example - management over the line and the control port


User manual 


In the network depicted on the previous page, the control ports of the modems that reside in the same 

site are connected to each other. By doing so (and by setting the appropriate attributes as seen on the 

previous page), the management data can pass from one device to another, not only over the line but 

also over the control port. 

Special points of interest in this network are: 

• You have to enable internalDmm on CV 1, because the management data has to be able to pass from 

modem B to modem A. By doing so, you are able to forward management data over the … 

- line to TT 3, 

- control port to CV 2 (on a CV the control port is "linked" to modem A). 


modem A to modem B. By doing so, you are able to forward management data over the line to both 

CV 3 modem A and B. 

• You have to disable internalDmm on CV 3, else you have two possible paths towards the management 

system for CV 3. E.g. if you would enable internalDmm, then modem A could contact the management 

system … 

- either over the line and then through CV 2 modem A etc. 

- or through CV 3 modem B, over the line and then through CV2 modem B etc. 

In this case, you might get unexpected results. Therefore, make sure there is only one path towards 

the management system! 




• You have to disable internalDmm on CV 5, else you have two possible paths towards the management 

system for CV 5. Make sure there is only one path towards the management system!


User manual 


5.10.8 Example - management over the line and the E1 interface


User manual 


In the network depicted on the previous page, the E1 interfaces of the modems that reside in the same 

site are connected to each other. By doing so (and by setting the appropriate attributes as seen on the 

previous page), the management data can pass from one device to another, not only over the line but 

also over the E1 interface. 

Special points of interest in this network are: 

• On TT 2 and TT 4, you have to set the saBits to o10Management or o10-pathManagement. By doing so, 

you are able to forward management data over the E1 interface connection between TT 2 and TT 4. 

On TT 3, however, you have to set the saBits to transparent, because on CV 1 internalDmm is enabled. 

Else you have two possible paths towards the management system for CV 1 and all modems after 

CV 1: 

- one path through TT 3, 

- one path through TT4. 

In this case, you might get unexpected results. Therefore, make sure there is only one path towards the 

management system! 


modem B to modem A. By doing so, you are able to forward management data over the … 

- line to TT 3, 

- E1 interface connection between CV 1 modem A and CV 2 modem A. 

• On modem A of both CV 1 and CV 2, you have to set the saBits to o10Management or o10-pathManagement. 

By doing so, you are able to forward management data over the E1 interface connection between 

modem A of CV 1 and CV 2. On modem B of both CV 1 and CV 2, however, you have to set the saBits 

to transparent, because on CV 1 and CV 2 internalDmm is enabled. Else you have two possible paths 

towards the management system. Make sure there is only one path towards the management system! 




• You have to disable internalDmm on CV 3, because else you have two possible paths towards the management 

system for CV 3. E.g. if you would enable internalDmm, then modem A could contact the management 

system … 

- either over the line and then through CV 2 modem A etc. 

- or through CV 3 modem B, over the line and then through CV2 modem B etc. 

In this case, you might get unexpected results. Therefore, make sure there is only one path towards the 

management system! 

• Etceteras.


User manual 


5.11 Configuring passwords 

This section shows you how to create a (list of) password(s) with associated access level in the security 

table. It also explains how to correct the security table in case of error or in case you forgot your password. 

Furthermore, this section shows you how to enter the passwords in the different maintenance 

tools. 


• 5.11.1 - Adding passwords to the security table on page 112 

• 5.11.2 - Entering passwords in the different management tools on page 112


User manual 


5.11.1 Adding passwords to the security table 

In order to avoid unauthorised access to the Crocus SHDSL G703 and the network you can create a list 

of passwords with associated access levels in the security table. Do this using the security attribute. Refer 

to crocusShdslTtRpG703/security on page 127. 

5.11.2 Entering passwords in the different management tools 

Now that you created a (list of) password(s) in the Crocus SHDSL G703, you have to enter these passwords 

every time you want to access the Crocus SHDSL G703 with one of the maintenance or management 

tools. 

The following table explains how to enter passwords in the different maintenance or management tools: 

Maintenance or management 

tool 

TMA 

TMA CLI, TMA Element 

Management 1 

and TMA for HP 

OpenView 1 

CLI 

ATWIN 

Web Interface 

SNMP 1 

TML 

How to enter the password 

Enter the password in the Connect… window. 

Use the application TmaUserConf.exe to create a TMA user and assign a 

password to this user. The password should correspond with a password 

configured in the device. 

Refer to the manual of TMA CLI, TMA Element Management or TMA for HP 

OpenView for more information. 

You are prompted to enter the password when the session starts. 

You are prompted to enter the password when the CLI session starts. Then 

you can start an ATWIN session. 

You are prompted to enter the password when the session starts. 

Define the password as community string. If no passwords are defined, then 

you can use any string as community string. 

Enter the password after the destination file name. Separate password and 

file name by a ‘’. 

Example: tml –fsourcefile@destinationfilepwd 

(T)FTP 1 

Enter the password after the destination file name. Separate password and 

file name by a ‘’. 

Example: put sourcefile destinationfilepwd 

1. Only possible through a management concentrator. 

• If no passwords are created, everybody has complete access. 

• If you define at least one password, it is impossible to access the Crocus SHDSL G703 with TMA if 

you do not enter the correct password. 

• If you create a list of passwords, you should create at least one with write and security access. If not, 

you will be unable to make configuration and password changes after activation of the new configuration.


User manual 


5.12 Executing configuration actions 

This section shows you how to execute actions on the configuration. The following gives an overview of 

this section: 

• 5.12.1 - What are the different configuration types on page 114 

• 5.12.2 - Activating the configuration on page 115 

• 5.12.3 - Loading the default configuration on page 115 

• 5.12.4 - The load default configuration action in TMA on page 116 

• 5.12.5 - Loading the default configuration using a DIP switch on page 117


User manual 


5.12.1 What are the different configuration types 

This section explains the different configuration types that are present in the Crocus SHDSL G703. 

Which are the configuration types 

Four types of configuration are present in the Crocus SHDSL G703: 

• the non-active configuration 

• the active configuration 

• the default configuration. 

Explaining the configuration types 

When you configure the Crocus SHDSL G703, the following happens: 

Phase Action Result 

1 Connect the computer running the maintenance 

tool to the Crocus SHDSL G703. 

The non-active configuration is displayed 

on the screen. 

2 Modify the non-active configuration. The modifications have no immediate influence 

on the active configuration currently 

used by the Crocus SHDSL G703. 

3 Complete the modifications on the nonactive 

configuration. 

4 In case of … 

• TMA, click on the TMA button Send all 

attributes to device: . 

The non-active configuration has to be activated. 

The non-active configuration becomes the 

active configuration. 

• any other maintenance tool than the 

graphical user interface based TMA 

(e.g. ATWIN, CLI, Web Interface, Easy- 

Connect terminal, TMA CLI), then execute 

the Activate Configuration action. 

Which are the configuration actions 

You can execute the following actions on the configuration: 

• crocusShdslTtRpG703/Activate Configuration on page 129 

• crocusShdslTtRpG703/Load Default Configuration on page 129 

• crocusShdslTtRpG703/Load Saved Configuration on page 130 

• crocusShdslTtRpG703/Cold Boot on page 130


User manual 


5.12.2 Activating the configuration 

As explained in section 5.12.1 - What are the different configuration types on page 114, when you finished 

configuring the Crocus SHDSL G703 you have to activate the configuration changes you made. 

In case of … 

• TMA, click on the TMA button Send all attributes to device: . 

• any other maintenance tool than the graphical user interface based TMA (e.g. ATWIN, CLI, Web 

Interface, EasyConnect terminal, TMA CLI), then execute the Activate Configuration action. 

5.12.3 Loading the default configuration 

If you install the Crocus SHDSL G703 for the first time, all configuration attributes have their default values. 

If the Crocus SHDSL G703 has already been configured but you want to start from scratch, then 

you can revert to the default configuration. 

You can load the default configuration using the Load Default Configuration … 

• action. Refer to 5.12.4 - The load default configuration action in TMA on page 116. 

• DIP switch. Refer to 5.12.5 - Loading the default configuration using a DIP switch on page 117.


User manual 


5.12.4 The load default configuration action in TMA 

The location of the Load Default Configuration action in the Crocus SHDSL G703 containment tree is: 

crocusShdsl/Load Default Configuration 

To load the default configuration, proceed as follows: 

Step 

Action 

1 In the TMA window, select the top object crocusShdslTtRpG703 and the group Configuration. 

2 In the action window of TMA, click the left mouse button on Load Default Configuration 

so that this action is selected. 

3 Press the right mouse button and select Execute. 

4 To see the default configuration, press the Retrieve all attributes from device button. 

5 In the action window of TMA, click the left mouse button on Activate Configuration so that 

this action is selected. 

6 Press the right mouse button and select Execute.


User manual 


5.12.5 Loading the default configuration using a DIP switch 

The following procedure shows how to load the default configuration using the Load Default Configuration 

DIP switch on the Crocus SHDSL G703 PCB: 

Step 

Action 

1 Disconnect the Crocus SHDSL G703 from the power supply. 

2 Set DIP switch bank DS1 position 2 to off. 

To locate this DIP switch bank and for the DIP switch setting procedure, refer to 3 - DIP 

switches and straps of the Crocus SHDSL G703 on page 33 

3 Reconnect the power supply to the Crocus SHDSL G703. 

⇒The Crocus SHDSL G703 reboots and loads the default configuration. 

4 Activate the loaded default configuration: 

1. Open a management session (e.g. TMA, ATWIN, …) on the Crocus SHDSL G703. 

Refer to 4.1 - Starting TMA on the Crocus SHDSL G703 on page 42. 

2. Execute the Activate Configuration action. 

5 Again, disconnect the Crocus SHDSL G703 from the power supply. 

6 Reset the appropriate DIP switch to on (see step 2). 

7 Properly replace the cover as described in 3.1.4 - Changing DIP switch and strap settings 

of the TT on page 39 and reconnect the power supply. 

⇒The Crocus SHDSL G703 reboots in normal operation mode.


User manual 


5.13 Troubleshooting the Crocus SHDSL G703 

If you experience trouble when installing, configuring or operating the Crocus SHDSL G703, then check 

the following: 

Check 

power 

connections 

Description 

Is the Crocus SHDSL G703 powered properly 

Are all the necessary cables connected to the Crocus SHDSL G703 Are they connected 

to the correct connectors of the Crocus SHDSL G703 Are they connected 

properly Did you use the correct cables (straight, crossed, …) 

Refer to 2.6 - Connecting the Crocus SHDSL G703 Table Top on page 20. 

other devices 

LEDs 

messages 

status 

performance 

alarms 

Are the devices that are connected to the Crocus SHDSL G703 working properly 

(are they powered, are they operational, …) 

What do the LEDs of the Crocus SHDSL G703 indicate Do they indicate a fault 

condition 

Refer to 2.9 - Front panel LED indicators on page 30 

What messages are displayed in the messages table This table displays informative 

and error messages. 

Refer to crocusShdslTtRpG703/messages on page 160 

What do the status attributes of the Crocus SHDSL G703 indicate What is the status 

of the different interfaces (up, down, testing, …) 

Refer to 7 - Status attributes on page 155. 

What do the performance attributes of the Crocus SHDSL G703 indicate What is 

the performance of the different interfaces (does the data pass the interface, is the 

interface up or down, when did it go up or down, …) 

Refer to 8 - Performance attributes on page 187. 

What do the alarm attributes of the Crocus SHDSL G703 indicate What is the 

alarm status of the different interfaces (link down, errors, …) 

Refer to 9 - Alarm attributes on page 207.


User manual 


5.14 Crocus SHDSL G703 compatibility with other SHDSL devices 

The Crocus SHDSL G703 can be used in combination with other (OneAccess) SHDSL devices. The document 

“Interoperability for OneAccess SHDSL products” (PDF) gives an overview of the interoperability.


User manual 

Step-by-step configuration



Reference manual


Reference manual



Configuration attributes 

6 Configuration attributes 

This chapter discusses the configuration attributes of the Crocus SHDSL G703. The following gives an 

overview of this chapter. 

• 6.1 - Configuration attribute overview on page 124 

• 6.2 - General configuration attributes on page 126 

• 6.3 - Line configuration attributes on page 131 

• 6.4 - Line pair configuration attributes on page 145 

• 6.5 - Repeater and end configuration attributes on page 147 

• 6.6 - DTE Interface configuration attributes on page 148 

• 6.7 - Management configuration attributes on page 151




6.1 Configuration attribute overview 

> crocusShdslTtRpG703 

sysName 

sysContact 

sysLocation 

security 

forwardTmaToCtrlPort 

forwardTmaToLine 

alarmMask 

alarmLevel 

remoteAlarmMask 

Action: Activate Configuration 

Action: Load Saved Configuration 

Action: Load Default Configuration 

Action: Cold Boot 

>> line 

channel 

region 

timingMode 

mode 1 

minLinePairSpeed 

retrain 

startupMargin 

testDuration 

asymmetricPsd 

eocChannel 

txEocMessages 1 

eocHandling 

numExpectedRepeaters 

linkAlarmThresholds 

management 

name 

alarmMask 

alarmLevel 


repeaterAlarmMask 

repeaterAlarmLevel 

repeaterLinePairAlarmMask 

repeaterLinePairAlarmLevel 

endAlarmMask 

endAlarmLevel 

endLinePairAlarmMask 

endLinePairAlarmLevel 

1. 2P version only




>>> linePair[ ] 2 

alarmMask 

alarmLevel 


>> g703 

name 

framingtimeSlotsclocking 

coding 

crc4InsertionaisDetection 

sqThreshold 

sqTime 

jitterAttenuation 

saBitsrdlDetect 

tests 

alarmMask 

alarmLevel 

>> remoteAlarmMaskmanagement 

cms2Address 

consoleNoTrafficTimeOut 

ctrlPortProtocol 

2. in case of a 2P version, two linePair objects are present: linePair[1] and linePair[2]




6.2 General configuration attributes 

This section describes the following configuration attributes: 

• crocusShdslTtRpG703/sysName on page 127 

• crocusShdslTtRpG703/sysContact on page 127 

• crocusShdslTtRpG703/sysLocation on page 127 

• crocusShdslTtRpG703/security on page 127 

• crocusShdslTtRpG703/forwardTmaToCtrlPort on page 128 

• crocusShdslTtRpG703/forwardTmaToLine on page 128 

• crocusShdslTtRpG703/ on page 128 

This section describes the following actions: 

• crocusShdslTtRpG703/Activate Configuration on page 129 

• crocusShdslTtRpG703/Load Default Configuration on page 129 

• crocusShdslTtRpG703/Load Saved Configuration on page 130 





crocusShdslTtRpG703/sysName 

This is a field where you can assign a name to the Crocus SHDSL G703. 

The field has a limit of 64 characters. 

This is a SNMP MIB2 parameter. 

Default: 

Range: 0 … 64 characters 

crocusShdslTtRpG703/sysContact 

Default: 


This is a field where you can fill in the name of a contact person together 

with information on how to contact this person. The field has a limit of 64 characters. 


crocusShdslTtRpG703/sysLocation 

This is a field where you can fill in the physical location of the Crocus 

SHDSL G703. The field has a limit of 64 characters. 


Default: 


crocusShdslTtRpG703/security 

Default: 

Range: table, see below 

In order to avoid unauthorised access to the network and the Crocus 

SHDSL G703, you can create a list of passwords with associated access levels. The security attribute 

contains the following elements: 

Element 

password 

Description 

The password is a string of maximum 10 characters. 

Default: 


accessRights 

This attribute represents the access levels assigned 

to a password. It is a bit string whereof each bit corresponds 

to an access level. The different access levels 

are:· 

• readAccess 

• writeAccess· 

• securityAccess 

• fileSystemAccess 

• testAccess 

Default:11111 

Range: bit string, see below




The following table shows, for each access level, what you can or can not do: 

Access 

level 

Read 

attributes 

Change 

attributes 

Read security 

attributes 1 

Change 

security 

attributes 1 

Execute 

actions 2 

Access file 

system 

readAccess yes no no no no no 

writeAccess yes yes no no yes no 

securityAccess yes yes yes yes yes no 

fileSystemAccess 

no no no no no yes 

testAccess yes 3 

no no no yes 4 

no 

1. The Crocus SHDSL G703 has the following security attributes: 

crocusShdslTtRpG703/sysName 

crocusShdslTtRpG703/security 

2. Actions are e.g. Cold Boot, testActivation, retrain, etc. 

3. It is possible to see status and performance attributes of the line object that are applicable to 

modem tests (AL, DL, RDL, ...). 

4. It is possible to execute actions applicable to modem tests (AL, DL, RDL, ...). 

crocusShdslTtRpG703/forwardTmaToCtrlPort 


Range: enabled / disabled 

Enables or disables propagation of management information to the control 

port. This allows you to cascade management information through the control port towards another 

OneAccess device. 

The forwardTmaToCtrlPort attribute is only present on the TT. 

crocusShdslTtRpG703/forwardTmaToLine 

Enables or disables propagation of management information to the line. 



If forwardTmaToLine is enabled, management data is sent over the line via a dedicated management channel 

towards the remote remote Crocus SHDSL. To determine which management data is forwarded over 

the line, refer to crocusShdslTtRpG703/line/management on page 142. 

If forwardTmaToLine is disabled, O10 managment data can still be passed over the line : disabling forwardTmaToLine 

is not enough to avoid management loops. 

For more information, refer to 5.10.4 - Forwarding management data to the line and control connector 

on page 103. 

crocusShdslTtRpG703/ 

For more information on the configuration alarm attributes alarmMask, alarmLevel, remoteAlarmMask, alarmContactHighMask, 

alarmContactLowMask and on the alarms in general, refer to 9.2 - Introducing the alarm 

attributes on page 210. 

For more information on the alarms of the crocusShdslTtRpG703 object, refer to 9.3 - General alarms on 

page 218.




crocusShdslTtRpG703/Activate Configuration 

If you execute this action, the editable non-active configuration becomes the active configuration. 

When use this action 

If you configure the Crocus SHDSL G703 using … 

• any other maintenance tool than the graphical user interface based TMA (e.g. ATWIN, CLI, Web 

Interface, EasyConnect terminal, TMA CLI), then execute the Activate Configuration action to activate 

the configuration after you finished configuring the Crocus SHDSL G703 or after you executed 

the Load Saved Configuration or Load Default Configuration action. 

• TMA, then do not just execute the Activate Configuration action to activate the configuration after you finished 

configuring the Crocus SHDSL G703, but use the TMA button Send all attributes to device 

instead. You can, however, execute the Activate Configuration action after you executed the Load 

Saved Configuration or Load Default Configuration action. 

crocusShdslTtRpG703/Load Default Configuration 

If you execute this action, the non-active configuration is overwritten by the default configuration. 


If you install the Crocus SHDSL G703 for the first time, all configuration attributes have their default values. 

If the Crocus SHDSL G703 has already been configured but you want to start from scratch, then 

use this action to revert to the default configuration. 

In case of TMA, click on the TMA button Retrieve all attributes from device 

Configuration action to see the new non-active configuration. 

after executing the Load Default




crocusShdslTtRpG703/Load Saved Configuration 

If you execute this action, the non-active configuration is overwritten by the active configuration currently 

used by the Crocus SHDSL G703. 


If you are in the progress of modifying the non-active configuration but made some mistakes, then use 

this action to revert to the active configuration. 

In case of TMA, click on the TMA button Retrieve all attributes from device 

Configuration action to see the new non-active configuration. 

after executing the Load Default 

crocusShdslTtRpG703/Cold Boot 

If you execute this action, the Crocus SHDSL G703 reboots. As a result, the Crocus SHDSL G703 … 

• performs a self-test. 

• checks the software. 

• reads the saved configuration and restarts program execution. 


Use this action, for instance, to activate new application software.




6.3 Line configuration attributes 


• crocusShdslTtRpG703/line/channel on page 132 

• crocusShdslTtRpG703/line/region on page 132 

• crocusShdslTtRpG703/line/timingMode on page 133 

• crocusShdslTtRpG703/line/mode on page 134 

• crocusShdslTtRpG703/line/minLinePairSpeed on page 135 

• crocusShdslTtRpG703/line/retrain on page 135 

• crocusShdslTtRpG703/line/startupMargin on page 138 

• crocusShdslTtRpG703/line/testDuration on page 138 

• crocusShdslTtRpG703/line/asymmetricPsd on page 138 

• crocusShdslTtRpG703/line/eocChannel on page 139 

• crocusShdslTtRpG703/line/txEocMessages on page 139 

• crocusShdslTtRpG703/line/eocHandling on page 139 

• crocusShdslTtRpG703/line/numExpectedRepeaters on page 139 

• crocusShdslTtRpG703/line/linkAlarmThresholds on page 140 

• crocusShdslTtRpG703/line/management on page 142 

• crocusShdslTtRpG703/line/name on page 142 

• crocusShdslTtRpG703/line/dualPairMode on page 143 

• crocusShdslTtRpG703/line/ on page 144




crocusShdslTtRpG703/line/channel 

Use the channel attribute to define which modem is the master (central) and 

which the slave (remote) during the synchronisation procedure of the 

modems. 

Default:remote for TT / central 

for CV 

Range: remote / central 

The default channel setting of a TT is remote, while that of a CV is central. Therefore there will never be 

a synchronisation problem when a CV and a TT are used in a regular set-up, the CV at the backbone 

side and the TT at the customer side. 

• If two TTs are used at each end of the data link, make sure to change the channel attribute of one of 

the TTs into central. 

• If two CVs are used at each end of the data link, make sure to change the channel attribute of one of 

the CVs into remote. 


Use the region attribute to set the S-HDSL standard. The region attribute has 

the following values: 

Default:auto 


Value 

annexA 

annexB 

auto 

Description 

The American S-HDSL standard is used. 

The European S-HDSL standard is used. 

The S-HDSL standard is selected automatically.




crocusShdslTtRpG703/line/timingMode 

Use the timingMode attribute to set the timing mode. It influences the relationship 

between the line clock and the user interface clock. 

Use the timingMode attribute to set the timing mode. 

The Crocus SHDSL G703 has two clock sources: 

• one takes care of the clocking on the SHDSL line. 

• one takes care of the clocking on the modular user interface. 

Using the timingMode attribute you can define whether these two clocks run independent from each other 

(i.e. plesiochronous mode) or whether they are "coupled" with each other (i.e. synchronous mode). 

The timingMode attribute has the following values: 

Default:pleisiochronous 

Range: pleisiochronous / synchronous 

Value 


synchronous 

Description 

In this mode each SHDSL frame has 0 or 4 stuffing bits to compensate clock deviations 

towards the user interface clock. In this mode, all possible clocking modes 

can be selected. 

In this mode the SHDSL frame does not have stuffing bits to compensate clock 

deviations towards the user interface clock. In this case only internal and slave 

receive clocking is allowed. What is more, internal clocking is only allowed at one 

side of the link (e.g. the central side) and slave receive clocking at the other side 

(e.g. the remote side).Synchronous mode is the typical timing mode in DSLAM setups. 

• You always have to work in the same timing mode at both sides of the link. In other words: 

- central: synchronous - remote: synchronous → allowed 

- central: plesiochronous - remote: plesiochronous → allowed 

- central: synchronous - remote: plesiochronous or vice versa → not allowed 

• For compatibility with other SHDSL devices, setting this attribute to the correct value might be essential. 

Refer to 5.14 - Crocus SHDSL G703 compatibility with other SHDSL devices on page 119




crocusShdslTtRpG703/line/mode 

This attribute is only present on a Crocus SHDSL G703 2P (2 pair) version. 

Use the mode attribute to select between single pair or dual pair operation. 

Default:dualPair 

Range: singlePair / dualPair 

When the mode attribute is changed, the Crocus SHDSL G703 reboots. 

When you change the mode attribute, then make sure that you use the correct speed attribute to set the 

user speed: 

If the mode attribute is set to … 

singlePair, 

dualPair, 

then use the attribute … 

speed to configure the user speed. 

speed2P to configure the user speed.





Use the minLinePairSpeed attribute to determine what the minimum speed on 

the line pair has to be when the Crocus SHDSL G703 trains. 

For more information on the minimum line pair speed, refer to 5.6 - Configuring 

the minimum line speed on page 87. 

Default: 

Range: 192kbps up to 

2048kbps (in steps of 

64kbps) 

crocusShdslTtRpG703/line/retrain 

Use the retrain attribute to determine when the Crocus SHDSL G703 should 

retrain. 

Default:- 

Range: structure, see below 

The retrain criteria 

The following criteria determine when to retrain: 

Criterion 

no SHDSL frame 

synchronisation 

SHDSL frame 

CRC error 

threshold 

exceeded 

signal to noise 

too low 

Description 

When the Crocus SHDSL G703 cannot synchronise on the SHDSL framing, it 

retrains. 

SHDSL framing sends 166 blocks per second over the line, independently of the 

speed. Each block has a CRC check. When a certain percentage of frames has a 

CRC error, the Crocus SHDSL G703 retrains. 

When the signal to noise ratio becomes too low during a certain period of time, the 

Crocus SHDSL G703 retrains.




Configuring the retrain criteria 

The retrain structure contains the following elements: 

Element 

enabled 

Use this element to enable (yes) or disable (no) retraining. 

So when selecting no, the Crocus SHDSL G703 

will never retrain (even not when the line is disconnected). 

errorPersistence- 

Time 

Description 

Use this element to set the period, in seconds, during 

which each criterion is measured. If within this period 

the predefined criterion value is equalled or 

exceeded, the Crocus SHDSL G703 retrains. 

Default:yes 

Range: - 

Default:10 

Range: -1 … 30 

The errorPersistenceTime functions as a moving window, so it ‘s always the last seconds, 

equal to the errorPersistenceTime, that are used to calculate the average. 

errorThreshold 

Use this element to set the amount of CRC errors, per 

mille, at which the Crocus SHDSL G703 should 

retrain. If the amount of CRC errors exceeds this 

Default:10 

Range: 1 … 300 

value (measured during the errorPersistenceTime), then the Crocus SHDSL G703 

retrains. 

Remark 

The errored SHDSL frames can be monitored using the performance attribute 

crocusShdslTtRpG703/line/linePair[ ]/performance/codeViolations. 

snrThreshold 

Use this element to set the signal to noise ratio, in dB, Default:23 

which has to be maintained. If the measured signal to Range: 20 … 25 

noise ratio drops below this value (measured during 

the errorPersistenceTime), then the Crocus SHDSL G703 retrains. 

If you configured the Crocus SHDSL G703 in … 

• a fixed speed, then the Crocus SHDSL G703 tries to retrain again at this fixed 

speed. If the retrain is successful, then the Crocus SHDSL G703 operates at 

this fixed speed again. If the retrain is not successful, then the Crocus SHDSL 

G703 retrains again. If the line conditions are so bad that the fixed speed can 

no longer be attained, then the Crocus SHDSL G703 keeps retraining. 

• auto speed, then the Crocus SHDSL G703 initially tries to retrain at the speed 

it was trained before. If this does not work, then it tries to train on a lower speed. 

Remark 

The snrThreshold is only taken into account as a retrain criterion after the line has 

been in data state for 2 minutes.




Element 

stepupMargin 

Description 

Use this element to enable or disable the step-up 

retrain mechanism. 

If you set the stepupMargin to a value other than disabled, then the Crocus SHDSL 

G703 retrains at a higher speed (because of the improved line conditions) when 

the current signal to noise ratio of the line exceeds the sum of … 

• the signal to noise ratio at the moment the line entered the data state (i.e. 

shortly after a successful training cycle) 

+ 

• the stepupMargin value. 

Default:disabled 

Range: 3 … 15 

The result of this sum can be seen in the status attribute stepupThreshold. 

Remark 

Note that the stepupMargin element is only considered when both the central and 

remote Crocus SHDSL G703 are in auto speed mode. 

Example 

Suppose in the retrain structure you set the … 

• enabled element to yes. 

• snrThreshold element to 25 (dB). 

• stepupMargin element to 3 (dB). 

Suppose that at the moment the line entered the data state the measured signal to noise ratio was 27 

dB. In that case the stepupThreshold value is 27 dB + 3 dB = 30 dB. 

Now, if the signal to noise ratio … 

• drops below 25 dB (i.e. the value set using the snrThreshold attribute), then the Crocus SHDSL G703 

retrains at a lower speed (because of the deteriorated line conditions). 

• exceeds 27 dB (i.e. the stepupThreshold value), then the Crocus SHDSL G703 retrains at a higher 

speed (because of the improved line conditions).




crocusShdslTtRpG703/line/startupMargin 

Default:2dB 


Use the startupMargin attribute to define for which signal to noise margin a line 

speed is selected during the ITU-T G.994.1 auto speed negotiation. The startupMargin attribute is only relevant 

in case both central and remote Crocus SHDSL G703 are set to auto speed mode. 

The higher the startupMargin, the lower the selected line speed but the more stable the line will be. The 

startupMargin attribute has the following values: disabled, 0dB, 1dB, 2dB, 3dB, 4dB, 5dB, 6dB, 7dB, 8dB, 

9dB, 10dB. When you set the startupMargin to disabled, the signal to noise margin is not considered during 

the ITU-T G.994.1 auto speed negotiation. I.e. the complete speed range is available. 

crocusShdslTtRpG703/line/testDuration 

Default:00000d 00h 03m 00s 

Range: 00000d 00h 00m 01s- 

Use the testDuration attribute to set the time-out period of diagnostic tests. 

00000d 18h 12m 15s 

It is possible to perform diagnostic tests on the Crocus SHDSL G703 (refer 

to Chapter 12 - Diagnostic tests on page 245). However, these tests cause an interruption of the normal 

data transfer. Some tests even cause a contact loss between the management system and the remote 

Crocus SHDSL G703. Therefore, tests are automatically terminated after a time-out period which is 

specified with the testDuration attribute. 

The time-out ranges from 00000d 00h 00m 01s up to 00000d 18h 12m 15s. Entering 00000d 00h 00m 00s disables 

the time-out period (i.e. diagnostic tests are not terminated after a time-out period). 

crocusShdslTtRpG703/line/asymmetricPsd 

Default:disabled 


Use the asymmetricPsd attribute to enable or disable the asymmetrical Power 

Spectral Density. This feature, described in the SHDSL standard, increases the transmit power for the 

fixed speeds … 

• 768 kbps and 1536 kbps in case of Annex A. 

• 2048 kbps and 2304 kbps in case of Annex B. 

To enable asymmetrical PSD, proceed as follows: 

Step 

Action 

1 Select the speed for which you want to enable asymmetrical PSD using the speed(2P) 

attribute:· 

• 768 kbps or 1536 kbps in case of Annex A.· 

• 2048 kbps or 2304 kbps in case of Annex B. 

2 Select the correct regional standard using the region attribute:· 

• Annex A in case of a speed of 768 kbps or 1536 kbps.· 

• Annex B in case of a speed of 2048 kbps or 2304 kbps. 

3 Enable asymmetrical PSD by setting the asymmetricPsd attribute to enabled. 

If asymmetricPsd is enabled then the device on which the channel attribute is set to "remote" will even have 

a slightly higher transmit power, than the device on which the channel attribute is set to "central". When 

asymmetricPsd is enabled, you should be able to cover a slightly higher distance at the given speeds.




crocusShdslTtRpG703/line/eocChannel 

Default:itu-G.991.2 

Range: proprietary / itu- 

Use the eocChannel attribute to determine how the checksum of Embedded 

G.991.2 

Operations Channel (EOC) messages is calculated. Make sure that on both 

the central and the remote device the eocChannel attribute is set to the same value. 

The eocChannel attribute has the following values: 

Value 

proprietary 

itu-G.991.2 

Description 

The checksum is calculated using a proprietary method. 

The checksum is calculated using the G.SHDSL standard method. 

crocusShdslTtRpG703/line/txEocMessages 

Default:bothPairs 

Range: pair1 / bothPairs 

This attribute is only present on a Crocus SHDSL G703 2P (2 pair) version. 

Use the txEocMessages attribute to send EOC messages on both line pair 1 and 2 (bothPairs) or on line pair 

1 only (pair1). 

crocusShdslTtRpG703/line/eocHandling 

Default:none 


SHDSL devices can communicate with each other through the Embedded 

Operations Channel (EOC). Use the eocHandling attribute to define the handling of the EOC messages. 

For more information on EOC handling, refer to 5.2 - Configuring EOC handling on page 57. 

crocusShdslTtRpG703/line/numExpectedRepeaters 

Default:0 

Range: 0 … 8 

Use the numExpectedRepeaters attribute to set the number of Crocus SHDSL 

G703 Repeaters that the Crocus SHDSL G703 can expect to find on the SHDSL line. If the actual 

number of repeaters does not match the number you entered in the numExpectedRepeaters attribute, then 

the invalidNumRepeaters alarm is raised.




crocusShdslTtRpG703/line/linkAlarmThresholds 

Default:- 

Range: structure, see below 

Use the linkAlarmThresholds attribute to set the alarm threshold values of the 

most important line parameters. If this predefined threshold value is exceeded, then a corresponding 

alarm is generated. 

The linkAlarmThresholds structure contains the following elements: 

Element 

lineAttenuation 

Description 

Use this element to set the alarm threshold value of the line attenuation in dB. If 

the line attenuation … 

• exceeds this value during at least 10 seconds, then the lineAttenuation alarm 

is raised. 

• drops below this value during at least 10 seconds, then the lineAttenuation 

alarm is cleared. 

Remark 

Note that if you set the eocHandling attribute to alarmConfiguration, then the central 

SHDSL device forces the remote SHDSL device and any intermediary repeater to 

use the link alarm thresholds lineAttenuation and signalNoise as configured on the central 

device. In other words, the settings of the lineAttenuation and signalNoise on the 

central device overrule those of the remote device and repeaters. 

signalNoise 

Use this element to set the alarm threshold value of the signal noise in dB. If the 

signal noise … 

• exceeds this value during at least 10 seconds, then the signalNoise alarm is 

raised. 

• drops below this value during at least 10 seconds, then the signalNoise alarm is 

cleared. 

Remark 

Note that if you set the eocHandling attribute to alarmConfiguration, then the central 1 

SHDSL device forces the remote 2 SHDSL device and any intermediary repeater 

to use the link alarm thresholds lineAttenuation and signalNoise as configured on the 

central device. In other words, the settings of the lineAttenuation and signalNoise on 

the central device overrule those of the remote device and repeaters.




Element 

errSecRatio- 

Exceeded 

sevErrSecRatio- 

Exceeded 

bBErrRatio- 

Exceeded 

Description 

Use this element to set the alarm threshold value of the errored seconds ratio. The 

errored seconds ratio is the ratio of errored seconds to total seconds during a 15 

minute time interval. So if the errored seconds ratio … 

• exceeds this value within a 15 minute period 3 , then the errSecRatioExceeded 

alarm is raised. 

• drops below this value within a 15 minute period, then the errSecRatioExceeded 


Use this element to set the alarm threshold value of the severely errored seconds 

ratio. The severely errored seconds ratio is the ratio of severely errored seconds 

to total seconds during a 15 minute interval. So if the severely errored seconds 

ratio … 

• exceeds this value within a 15 minute period 3 , then the sevErrSecRatioExceeded 

alarm is raised. 

• drops below this value within a 15 minute period, then the sevErrSecRatioExceeded 


Use this element to set the alarm threshold value of the background block error 

ratio. The background block error ratio is the ratio of background block errors to 

total blocks during a 15 minute time interval. The count of total blocks excludes all 

blocks during severely errored seconds. So if the background block error ratio … 

• exceeds this value within a 15 minute period 3 , then the bBErrRatioExceeded alarm 

is raised. 

• drops below this value within a 15 minute period, then the bBErrRatioExceeded 




3. The 15 minute periods run synchronous with the 2 hour periods of the line/h2Line performance 

attribute. Because alarms are raised or cleared within 15 minute periods, there is a delay in the 

alarm status. For example, suppose that in the first minute of a 15 minute period the errSecRatioExceeded 

value is exceeded, then the errSecRatioExceeded alarm is raised when the full 15 

minute period has passed. The alarm is only cleared if in the next 15 minute period the errSecRatioExceeded 

value is not exceeded.




crocusShdslTtRpG703/line/management 

Default:o10-PathManagement 


Use the management attribute to determine whether and which management 

data is forwarded over the line (also refer to crocusShdslTtRpG703/forwardTmaToLine on page 128 to enable or 

disable propagation of management information to the line). 

The management attribute has the following possible values: 

Value 

transparent 

o10Management 



Description 

No management data is forwarded over the SHDSL line. The data is passed transparently 


This forwards the proprietary OneAccess O10 protocol over the SHDSL line. This 

allows you to manage the remote SHDSL device (and possibly other OneAccess 

devices connected to the SHDSL device). 

This forwards path management information over the SHDSL line. This allows you 

to manage complete paths instead of managing individual devices (i.e. elements).For 

more information on path management, refer to the TMA Path Management 

manual. 

This forwards both the proprietary OneAccess O10 protocol as the path management 

information over the SHDSL line. 

crocusShdslTtRpG703/line/name 

Use the name attribute to assign a name to the line. 

Default: 

Range: 0 ... 24 characters




crocusShdslTtRpG703/line/dualPairMode 

This attribute is only present on the Crocus SHDSL G703 2 pair version. 

Default:enhanced 

Range: standard/enhanced 

If the mode attribute is set to dualPair, then use the dualPairMode attribute to set the dual pair operation 

mode. The dualPairMode attribute has the following possible values: 

Value 

standard 

enhanced 

Description 

The dual pair SHDSL line operates strictly as described in the SHDSL standard. If 

the Crocus SHDSL G703 is connected to a remote device that operates strictly 

according to the SHDSL standard, then select the standard value. 

The dual pair SHDSL line operates slightly different than described in the SHDSL 

standard (some enhancements are present). If you select the enhanced value, then 

it is possible that you experience problems when connecting to third party SHDSL 

devices. In that case, select the standard value. 

If you have two Crocus SHDSL G703s connected to each other in a point-to-point set-up, then make 

sure that you set the dualPairMode attribute to the same value at both sides!




crocusShdslTtRpG703/line/ 

Use the alarm related configuration attributes to configure the alarm behaviour of … 

• the line object (use alarmMask, alarmLevel, remoteAlarmMask, alarmContactHighMask and alarmContactLowMask). 

• the repeater object (use repeaterAlarmMask, repeaterAlarmLevel, repeaterLinePairAlarmMask and repeaterLinePairAlarmLevel). 

• the end object (use endAlarmMask, endAlarmLevel, endLinePairAlarmMask and endLinePairAlarmLevel). 


• the alarm configuration attributes and on the alarms in general, refer to 9.2 - Introducing the alarm 


• the alarms of the line object, refer to 9.4 - Line alarms on page 221. 

• the alarms of the repeater object, refer to 9.6 - Repeater and end alarms on page 226. 

• the alarms of the end object, refer to 9.6 - Repeater and end alarms on page 226.




6.4 Line pair configuration attributes 


• crocusShdslTtRpG703/line/linePair[ ]/ on page 146 

In case of a Crocus SHDSL G703 2P, two linePair objects are present: linePair [1] and linePair [2].




crocusShdslTtRpG703/line/linePair[ ]/ 




For more information on the alarms of the linePair[ ] object, refer to 9.5 - Line pair alarms on page 223.




6.5 Repeater and end configuration attributes 

The repeater[ ] and the end objects are not present in the containment tree by default. They are added 

automatically when you configure the eocHandling attribute. Refer to 5.2 - Configuring EOC handling on 

page 57. 

crocusShdsl/repeater[ ]/ 

crocusShdsl/end[ ]/ 

For more information on the configuration alarm attributes alarmMask and alarmLevel and on the alarms in 

general, refer to 9.2 - Introducing the alarm attributes on page 210. 

For more information on the alarms of the repeater[ ] and end[ ] object, refer to 9.6 - Repeater and end 

alarms on page 226.




6.6 DTE Interface configuration attributes 

-This section describes the following configuration attributes: 

• crocusShdslTtRpG703/g703/timeSlots on page 149 

• crocusShdslTtRpG703/g703/coding on page 149 

• crocusShdslTtRpG703/g703/aisDetection on page 149 

• crocusShdslTtRpG703/g703/sqThreshold on page 149 

• crocusShdslTtRpG703/g703/sqTime on page 149 

• crocusShdslTtRpG703/g703/name on page 150 

• crocusShdslTtRpG703/g703/clocking on page 150 

• crocusShdslTtRpG703/g703/rdlDetect on page 150 

• crocusShdslTtRpG703/g703/ on page 150





This attribute is only present on a G703 Nx64k interface. 

Use the timeSlots attribute to enable or disable the individual 64 kbps time slots in the framed data stream. 


• Do not enable time slot 0 in the local Crocus SHDSL G703 and a non-G703 interface in the remote 

Crocus SHDSL G703. 

• In case you use a G703 interface in one Crocus SHDSL and a serial interface is the other Crocus 

SHDSL, then the auto speed only works when more than 2 time slots (in case of a Crocus SHDSL 1 

pair version) or 4 time slots (in case of a Crocus SHDSL 2 pair version) are selected. 

For more information, refer to 5.7 - Configuring framing and time slots on page 93. 

Default:ts0=1, other ts=0 


crocusShdslTtRpG703/g703/coding 

Use the coding attribute to set the G703 interface encoding mode. Possible 

values are: 

Default:hdb3 

Range: ami / hdb3 

Value 

ami 

hdb3 

Description 

Alternate Mark Inversion is selected. This is a bipolar code with no zero substitution. 

High Density Bipolar 3 is selected. This is a modified bipolar code.With HDB3 

encoding, more than three consecutive zeroes occurring in the data are replaced 

by a substitution word. This to ensure a high pulse density. Therefore, data links 

using the HDB3 code can carry data patterns with a low 1 density. Most of the 

G703 applications use HDB3 encoding. 

crocusShdslTtRpG703/g703/aisDetection 

Use this attribute to enable or disable the detection of the Alarm Indication Signal. 



crocusShdslTtRpG703/g703/sqThreshold 

Use this attribute to set the signal quality threshold. This is the number of 

errored seconds for which a signal quality alarm is generated. 

If the sqThreshold value, i.e. the number of errored seconds, is exceeded within the sqTime, then a signal 

quality (sq) alarm is generated. For example, if 10 (default) or more errored seconds occur within 1 

minute (default), then a signal quality alarm is generated. 

The sqThreshold value ranges from 0 up to 65535. 

Default:10 

Range: 0 … 65535 

crocusShdslTtRpG703/g703/sqTime 

Use this attribute to set the signal quality time. This is the period (in days, 

hours, minutes and seconds) during which the signal quality threshold is 

measured. 


Range: 00000d 00h 00m 00s - 

24855d 03h 14m 07s




If the sqThreshold value, i.e. the number of errored seconds, is exceeded within the sqTime, then a signal 

quality (sq) alarm is generated. For example, if 10 (default) or more errored seconds occur within 1 

minute (default), then a signal quality alarm is generated. 

The sqTime value ranges from 00000d 00h 00m 00s up to 24855d 03h 14m 07s. 

crocusShdslTtRpG703/g703/name 

Use the name attribute to assign an administrative name to the DTE interface. 

Default: 


crocusShdslTtRpG703/g703/clocking 

Use the clocking attribute to select a clocking mode. 

For more information, refer to 5.5 - Configuring the clocking mode on page 82. 

Default:external 

Range: external / internal 

crocusShdslTtRpG703/g703/rdlDetect 



When set to disabled, this attribute prevents that a digital loop can be performed 

by a remote Crocus SHDSL G703 on the local Crocus SHDSL G703. 

When rdlDetect is disabled, and a remote Crocus SHDSL G703 initiates an RDL test, the local Crocus 

SHDSL G703 will not go in digital loop. However, the DTE interface of the remote Crocus SHDSL G703 

will be clamped and data transfer is interrupted. 

crocusShdslTtRpG703/g703/ 




For more information on the alarms of the object, refer to 9.7 - Interface alarms on page 229.




6.7 Management configuration attributes 


• crocusShdslTtRpG703/management/cms2Address on page 152 

• crocusShdslTtRpG703/management/consoleNoTrafficTimeOut on page 152 

• crocusShdslTtRpG703/management/ctrlPortProtocol on page 153 

Also refer to 5.10.1 - Rules of thumb and remarks concerning management on page 100 for important 

rules of thumb regading management.




crocusShdslTtRpG703/management/cms2Address 

Default:0 

Range: 1 … 65535 

Use the cms2Address attribute to configure an absolute address in the Crocus 

SHDSL G703. The absolute addressing range goes from 1 up to 65535. This address can then be used 

to connect with TMA. Refer to 4.1 - Starting TMA on the Crocus SHDSL G703 on page 42. 

If you want to connect with TMA using relative addressing, you do not have to configure anything. In that 

case you can leave the cms2Address attribute at its default value, being 0. 

Refer to 5.10.2 - Using relative or absolute addressing on page 101 for more information on relative and 

absolute addressing. 

crocusShdslTtRpG703/management/consoleNoTrafficTimeOut 

Default:00000d 00h 30m00s 

Range: 00000d 00h 30m … 

You can open a TMA, CLI or ATWIN session on the Crocus SHDSL G703 

24855d 03h 14m 07s 

through the control connector. These sessions close automatically if there 

is no user interaction during a certain time-out period. This time-out period can be set with the consoleNoTrafficTimeOut 

attribute. 

The purpose of such a timer is to protect the Crocus SHDSL G703 against unauthorised access in case 

the last user did not close his session. 

The consoleNoTrafficTimeOut value ranges from 00000d 00h 00m 00s up to 24855d 03h 14m 07s.




crocusShdslTtRpG703/management/ctrlPortProtocol 

Default:console 

Range: management / console 

The setting of the ctrlPortProtocol attribute depends on what you connect to 

the control connector of the Crocus SHDSL G703. This is explained in the following table: 

Value 

management 

console 

Description 


G703 to … 

• a management concentrator (e.g. the Orchid 1003 LAN or 1035 Orchid) for 

management purposes. 

• the control connector of another OneAccess device using a crossed cable (i.e. 

back-to-back) in order to create an extended management link. For more information 

on extended management links, refer to Relative addressing on 

page 101 and Forwarding management information on page 103). 

When connecting the control connector of the Crocus SHDSL G703 to a COM port 

of your computer, you can still open a TMA session on the Crocus SHDSL G703. 

However, you can not open a CLI or ATWIN session. 


G703 to a COM port of your computer in order to manage the Crocus SHDSL G703 

locally using TMA, CLI or ATWIN.



Configuration attributes



Status attributes 

7 Status attributes 

This chapter discusses the status attributes of the Crocus SHDSL G703. The following gives an overview 

of this chapter. 

• 7.1 - Status attribute overview on page 156 

• 7.2 - General status attributes on page 159 

• 7.3 - Line status attributes on page 163 

• 7.4 - Line pair status attributes on page 172 

• 7.5 - Repeater and end status attributes on page 175 

• 7.6 - DTE Interface status attributes on page 180 

• 7.7 - Operating system status attributes on page 184




7.1 Status attribute overview 


sysDescr 

sysObjectID 

sysUpTime 

sysServices 

messages 

deviceId 

configurationSaving 

bootVersion 

loaderVersion 

flash1Version 

powerSource 


>> line 

ifDescr 

ifType 

ifSpeed 

ifOperStatus 

minLinePairSpeed 

maxLinePairSpeed 

framerType 

testType 

testOriginator 

testStatus 

maxSpeedSearch 

maxSpeedResult 

errorCount 

region 

asymmetricPsd 

linePairsSwapped 1 

numDiscoveredRepeaters 


Action: clearErrorCounter 

Action: maximumSpeedSearch 

1. 2P version only





ifSpeed 

ifOperStatus 

status 

timeSinceLastRetrain 

transmitPower 


signalNoise 

stepupThreshold 

actualBitRate 

>> repeater[ ] 3 

vendorId 

vendorModel 

vendorSerial 

vendorSoftVersion 

eocSoftVersion 

shdslVersion 

eocState 


Action: loopbackActivation 

>>> networkLinePair[ ] 2 


signalNoise 

>>> customerLinePair[ ] 2 


signalNoise 

>> end 3 

vendorId 

vendorModel 

vendorSerial 

vendorSoftVersion 

eocSoftVersion 

shdslVersion 

eocState 




signalNoise 

2. in case of a 2P version, two linePair objects are present: linePair[1] and linePair[2]. 

3. not present by default, is added automatically when setting the line/eocHandling attribute.




>> g703 4 

timeslots 5 

txdItu103 

rxdItu104 

los 

ais 

lfa 5 

rai 5 

ifDescr 

ifType 

ifSpeed 

ifClocking 

ifOperStatus 

>> operatingSystem 

taskInfo 

4. Crocus SHDSL G703 only 

5. G703 Nx64 only




7.2 General status attributes 

This section describes the following status attributes: 

• crocusShdslTtRpG703/sysDescr on page 160 

• crocusShdslTtRpG703/sysObjectID on page 160 

• crocusShdslTtRpG703/sysUpTime on page 160 

• crocusShdslTtRpG703/sysServices on page 160 

• crocusShdslTtRpG703/messages on page 160 

• crocusShdslTtRpG703/deviceId on page 161 

• crocusShdslTtRpG703/configurationSaving on page 161 

• crocusShdslTtRpG703/bootVersion on page 161 

• crocusShdslTtRpG703/loaderVersion on page 161 

• crocusShdslTtRpG703/flash1Version on page 162 

• crocusShdslTtRpG703/powerSource on page 162 






crocusShdslTtRpG703/sysDescr 

This is a textual description of the device. This is an SNMP MIB2 parameter. 

Example: OneAccess Crocus SHDSL TT V35 T1234/00100 01/01/00 12:00. In this example the following parameters 

are visible: 

• OneAccess Crocus SHDSL is the modem type 

• TT is the modem version 

• V35 is the interface type 

• T1234/00100 is the application software code and version 

• 01/01/00 12:00 is the application software release date and time. 

crocusShdslTtRpG703/sysObjectID 

This is the SNMP identification string. It is an SNMP MIB2 parameter. 

Example: 1.3.6.1.4.1.776.22. 

crocusShdslTtRpG703/sysUpTime 

This is the elapsed time since last power-on or cold boot of the Crocus SHDSL G703. 

Example: 00005d 02h 42m 15s, which means 5 days, 2 hours, 42 minutes and 15 seconds. 

crocusShdslTtRpG703/sysServices 

This is the SNMP service identification. It is an SNMP MIB2 parameter. 

crocusShdslTtRpG703/messages 

This table displays informative and error messages, e.g. Reconfigured, Cold Boot, … The messages table 

displays maximum 20 messages. 

If no TMA, CLI or ATWIN session is established through the control connector, then the messages are 

also sent to the control connector. This means that if you open a terminal emulation session on the control 

connector, you can monitor these messages. If you hit the ENTER key, the messages stop and you 

get a password prompt (CLI mode).




crocusShdslTtRpG703/deviceId 

This displays a unique code. This code is programmed into the Crocus SHDSL G703before it leaves the 

factory. You can use this code for inventory purposes. 

crocusShdslTtRpG703/configurationSaving 

This attribute indicates when the Crocus SHDSL G703 is writing its (new) configuration to the flash memory. 

Value 

busy 

done 

Description 

The Crocus SHDSL G703 is busy writing its configuration to the flash memory. 

During this state, do not power-down or reboot the Crocus SHDSL G703 else the 

new configuration will be lost. 

The Crocus SHDSL G703 has finished writing its configuration to the flash memory. 

crocusShdslTtRpG703/bootVersion 

This displays the code and version of the boot software currently used in the Crocus SHDSL G703. For 

more information on boot software, refer to 11.1 - What is boot, loader and application software on 

page 236. 

Example: Txxxx/xxxxx 01/01/00 12:00. In this example the following parameters are visible: 

• Txxxx is the boot software code for this device 

• /xxxxx is the boot software version 

• 01/01/00 is the boot software release date 

• 12:00 is the boot software release time. 

crocusShdslTtRpG703/loaderVersion 

This displays the code and version of the loader software currently used in the Crocus SHDSL G703. 

For more information on loader software, refer to 11.1 - What is boot, loader and application software 

on page 236. 


• Txxxx is the loader software code for this device 

• /xxxxx is the loader software version 

• 01/01/00 is the loader software release date 

• 12:00 is the loader software release time.




crocusShdslTtRpG703/flash1Version 

This displays the code and version of the application software, also called firmware, currently used in the 

Crocus SHDSL G703. For more information on application software, refer to 11.1 - What is boot, loader 

and application software on page 236. 


• Txxxx is the application software code for this device 

• /xxxxx is the application software version 

• 01/01/00 is the application software release date 

• 12:00 is the application software release time. 

crocusShdslTtRpG703/powerSource 

This attribute displays how the Crocus SHDSL G703 is powered. 


This action will reboot the Crocus SHDSL G703 while the power stays up (the Crocus SHDSL G703 also 

reboots if it is powered down and up again).




7.3 Line status attributes 


• crocusShdslTtRpG703/line/ifDescr on page 164 

• crocusShdslTtRpG703/line/ifType on page 164 

• crocusShdslTtRpG703/line/ifSpeed on page 164 

• crocusShdslTtRpG703/line/ifOperStatus on page 164 

• crocusShdslTtRpG703/line/minLinePairSpeed on page 164 

• crocusShdslTtRpG703/line/maxLinePairSpeed on page 165 

• crocusShdslTtRpG703/line/framerType on page 166 

• crocusShdslTtRpG703/line/testType on page 166 

• crocusShdslTtRpG703/line/testOriginator on page 167 

• crocusShdslTtRpG703/line/testStatus on page 167 

• crocusShdslTtRpG703/line/maxSpeedSearch on page 168 

• crocusShdslTtRpG703/line/maxSpeedResult on page 168 

• crocusShdslTtRpG703/line/errorCount on page 169 

• crocusShdslTtRpG703/line/region on page 169 

• crocusShdslTtRpG703/line/asymmetricPsd on page 169 

• crocusShdslTtRpG703/line/linePairsSwapped on page 169 

• crocusShdslTtRpG703/line/numDiscoveredRepeaters on page 169 

• crocusShdslTtRpG703/line/eocAlarmThresholds on page 170 


• crocusShdslTtRpG703/line/clearErrorCounter on page 170 

• crocusShdslTtRpG703/line/maximumSpeedSearch on page 171




crocusShdslTtRpG703/line/ifDescr 

This attribute displays the interface description. It is an SNMP MIB2 parameter. 

The ifDescr value for the line object is line. 

crocusShdslTtRpG703/line/ifType 

This attribute displays the interface type. It is an SNMP MIB2 parameter. 

The ifType value for the line object is other. 

crocusShdslTtRpG703/line/ifSpeed 

This attribute displays the current line speed in bits per second (bps), e.g. 2048000. 

crocusShdslTtRpG703/line/ifOperStatus 

This attribute displays the current operation status of the line. Possible operation status values are: 

Value 

up 

down 

testing 

Description 

The line is up, data transfer is possible. 

The line is down, data transfer is not possible. 

A test is active. For more information on type, originator and status of the test refer 

to the line status attributes testType, testOriginator and testStatus. 


This attribute displays the minimum line pair speed. The value depends on how the user speed and/or 

the minimum line pair speed are configured. Refer to What do the minLinePairSpeed and maxLinePairSpeed 

status attributes display on page 165 for more information.




crocusShdslTtRpG703/line/maxLinePairSpeed 

This attribute displays the maximum line pair speed. The value depends on how the user speed and/or 

the minimum line pair speed are configured. Refer to What do the minLinePairSpeed and maxLinePairSpeed 

status attributes display for more information. 

What do the minLinePairSpeed and maxLinePairSpeed status attributes display 

What is configured 

user speed 

(fixed) 

user speed 

(auto) 

user speed 

(fixed) + line 

speed 

Description 

In case you configure a fixed user speed (i.e. you set the configuration attribute 

speed(2P) to a fixed value), then the line trains at the fixed user speed.So in this 

case, the status attribute minLinePairSpeed displays a speed that is equal to the fixed 

user speed (or half the fixed user speed in case of a 2P version). What is more, 

the status attributes minLinePairSpeed and maxLinePairSpeed display the same speed. 

In case you configure an auto user speed (i.e. you set the configuration attribute 

speed(2P) to auto), then during the training cycle the lowest and highest possible line 

speed is determined. Then the line trains at the highest possible speed and this 

becomes the user speed.So in this case, the status attribute minLinePairSpeed displays 

the lowest possible speed that could be achieved on the line pair(s) during 

the training cycle. The status attribute maxLinePairSpeed displays the highest possible 

speed that could be achieved on the line pair(s) during the training cycle. 

In case you configure a fixed user speed (i.e. you set the configuration attribute 

speed(2P) to a fixed value) and a minimum line pair speed (using the configuration 

attribute minLinePairSpeed) and the user speed is lower than the line speed, then the 

line trains at the configured line speed.So in this case, the status attribute min- 

LinePairSpeed displays a speed that is equal to the configured minimum line pair 

speed. What is more, the status attributes minLinePairSpeed and maxLinePairSpeed display 

the same speed. 

Remark 

Note that this only applies when the configured user speed is lower than the configured 

line speed. In case the configured user speed is higher than the configured 

line speed, the user speed (fixed) situation applies. See above. 

user speed 

(auto) + line 

speed 

In case you configure an auto user speed (i.e. you set the configuration attribute 

speed(2P) to auto) and a minimum line pair speed (using the configuration attribute 

minLinePairSpeed), then during the training cycle the lowest (which is the minimum 

line pair speed) and highest possible line speed is determined. Then the line trains 

at the highest possible speed and this becomes the user speed.So in this case, the 

status attribute minLinePairSpeed displays a speed that is equal to the configured 

minimum line pair speed. The status attribute maxLinePairSpeed displays the highest 

possible speed that could be achieved on the line pair(s) during the training cycle.




crocusShdslTtRpG703/line/framerType 

This attribute displays which type of framing is used on the SHDSL line: Nx64 or slotted E1. 

The line of the Crocus SHDSL G703 can operate in two modes: Nx64 or slotted E1. These modes are 

not directly user configurable (i.e. there is no attribute with which you can select these modes), but 

depending on which interface is used, which user/line speed is chosen, etc. the Crocus SHDSL G703 

will select one of these modes. 

Mode 

Nx64 

slotted E1 

Description 

In this mode the data on the SHDSL line is a continuous bit stream with a speed 

of N x 64 kbps, where N ranges from 1 up to 36 (or from 2 up to 72 in case of a 

Crocus SHDSL G703 2 pair version). So the line speed ranges from 64 kbps up to 

2304 kbps (or 128 kbps up to 4608 kbps in case of a Crocus SHDSL G703 2 pair 

version). 

In this mode the data on the SHDSL line is put in N x 64 kbps time slots (similar to 

framed data on a G.703 interface), where N ranges from 3 up to 32 (or from 6 up 

to 64 in case of a Crocus SHDSL G703 2 pair version). So the line speed ranges 

from 192 kbps up to 2048 kbps (or 384 kbps up to 4096 kbps in case of a Crocus 

SHDSL G703 2 pair version). 

crocusShdslTtRpG703/line/testType 

This attribute displays which test is currently active. The possible indications are: 

Value 

no 

al 

dl 

rdl 

et 

alEt 

rdlEt 

Description 

No test is active. 

An analogue loop is active. 

A digital loop is active. 

A remote digital loop is active. 

The error test pattern generator / detector is active. 

An analogue loop in combination with an error test is active. 

A remote digital loop in combination with an error test is active.




crocusShdslTtRpG703/line/testOriginator 

This attribute displays the origin of the active test. The possible indications are: 

Value 

nms 

interface 

Description 

The test is initiated by the management system (e.g. TMA). 

The test is initiated by the application, via the interface. 

remote The test is initiated by the remote Crocus SHDSL G703. 

unknown 

There are two possibilities: 

• No test is running. 

• For some reason it is not possible to define the origin of the test. 

crocusShdslTtRpG703/line/testStatus 

This attribute displays the status of the active test. The possible indications are: 

Value 

progressing 

running 

ending 

unknown 

Description 

The test is starting. 

The test is running. 

The test is ending. 

There are two possibilities: 

• No test is running. 

• For some reason it is not possible to retrieve the status of the test.




crocusShdslTtRpG703/line/maxSpeedSearch 

This attribute shows the status of the maximumSpeedSearch action: refer to crocusShdslTtRpG703/line/maximum- 

SpeedSearch on page 171. The possible indications are: 

Value 

idle 

progressing 

aborted 

completed 

Description 

No maximumSpeedSearch action has been performed. 

The maximumSpeedSearch action is running. 

The maximumSpeedSearch action stopped without result. 

The maximumSpeedSearch action is finished. The result is displayed in the maxSpeed- 

Result attribute. 

crocusShdslTtRpG703/line/maxSpeedResult 

This attribute displays the maximum speed that was achieved during the execution of the maximumSpeed- 

Search action: refer to crocusShdslTtRpG703/line/maximumSpeedSearch on page 171.




crocusShdslTtRpG703/line/errorCount 

This attribute displays the amount of detected errors since the start of an ET, AL-ET or RDL-ET test. 

Every time a new ET, AL-ET or RDL-ET is started, the errorCount attribute is reset to 0. 


This attribute displays how you configured the region configuration attribute (annexA, annexB or auto). 

crocusShdslTtRpG703/line/asymmetricPsd 

This attribute displays whether asymmetric PSD is currently active or not. 

crocusShdslTtRpG703/line/linePairsSwapped 

This attribute is only present on the Crocus SHDSL G703 2P version. 

This attribute indicates whether the 2 line pairs have been swapped when connecting the central with 

the remote device. Possible values are: 

Value 

yes 

no 

unknown 

Description 

The line pairs are swapped. 

The line pairs are not swapped. 

The Crocus SHDSL G703 is unable to determine whether the line pairs have been 

swapped (e.g. because it is still training). 

crocusShdslTtRpG703/line/numDiscoveredRepeaters 

This attribute displays the number of Crocus SHDSL G703 Repeaters that the Crocus SHDSL G703 discovered 

on the SHDSL line.




crocusShdslTtRpG703/line/eocAlarmThresholds 

This attribute displays the value of the lineAttenuation and signalNoise elements as set in configuration 

attribute crocusShdslTtRpG703/line/linkAlarmThresholds. 

However, when the configuration attribute crocusShdslTtRpG703/line/eocHandling of the central device in the 

link has been set to alarmConfiguration, the central device will impose its values of lineAttenuation and signal- 

Noise elements on the other devices in the link, as described in 5.2.2 - The EOC handling attribute on 

page 59. The eocAlarmTresholds attribute will then display the values of the lineAttenuation and signalNoise elements 

of the central device in the link. 

The eocAlarmThresholds structure contains the following elements: 

• lineAttenuation 

• signalNoise 

crocusShdslTtRpG703/line/clearErrorCounter 

Use this action to clear the value of the errorCount attribute. This could be useful, for example, to reset the 

error counter after the unstable period (in which errors occur anyhow) shortly after the initiation of a test. 

Double click on the clearErrorCounter string to execute the action.




crocusShdslTtRpG703/line/maximumSpeedSearch 

Use this action to determine the highest possible line speed that can be achieved between the central 

and remote Crocus SHDSL G703. Double click on the maximumSpeedSearch string to execute the action. 

When you execute this test, the following happens: 

Phase 

Action 

1 The Crocus SHDSL G703 interrupts the normal data transfer. 

2 Both local and remote Crocus SHDSL G703 go to auto speed mode in order to determine 

the highest possible line speed. Meanwhile, the status of the test can be monitored with 

the maxSpeedSearch attribute. 

3 When the test ends, the result is displayed by the maxSpeedResult attribute. 

4 The Crocus SHDSL G703 resumes normal data transfer at the speed that was selected 

before the test. 

• The Crocus SHDSL G703 has to be in data state (i.e. after a successful training sequence and when 

the data connection is up) before you can execute the maximumSpeedSearch action. 

• While the maximumSpeedSearch action is running, no data transmission is possible.




7.4 Line pair status attributes 


• crocusShdslTtRpG703/line/linePair[ ]/ifSpeed on page 173 

• crocusShdslTtRpG703/line/linePair[ ]/ifOperStatus on page 173 

• crocusShdslTtRpG703/line/linePair[ ]/status on page 173 

• crocusShdslTtRpG703/line/linePair[ ]/timeSinceLastRetrain on page 173 

• crocusShdslTtRpG703/line/linePair[ ]/transmitPower on page 174 

• crocusShdslTtRpG703/line/linePair[ ]/lineAttenuation on page 174 

• crocusShdslTtRpG703/line/linePair[ ]/signalNoise on page 174 

• crocusShdslTtRpG703/line/linePair[ ]/stepupThreshold on page 174 

• crocusShdslTtRpG703/line/linePair[ ]/actualBitRate on page 174 





crocusShdslTtRpG703/line/linePair[ ]/ifSpeed 

This attribute displays the line pair speed, in bits per second (bps), when the line pair is in data state. 

crocusShdslTtRpG703/line/linePair[ ]/ifOperStatus 

This attribute displays the current operation status of the line. The possible indications are: 

Value 

up 

down 

testing 

Description 

The line is up, data transfer is possible. 

The line is down, data transfer is not possible. 

A test is active. For more information on type, originator and status of the test refer 

to the line status attributes testType, testOriginator and testStatus. 

crocusShdslTtRpG703/line/linePair[ ]/status 

This attribute displays the bit-pump its training state machine stages. It shows the progress of the training 

sequence. The most important indications are: 

Value 

idle 

dataState 

Description 

No data connection is present. This is the initial state. 

A data connection is present. The training sequence was successful and the bitpumps 

are ready to transmit data. 

crocusShdslTtRpG703/line/linePair[ ]/timeSinceLastRetrain 

This attribute displays the time the line is in data state since the last retrain cycle.




crocusShdslTtRpG703/line/linePair[ ]/transmitPower 

This attribute displays the current transmit power in dB, e.g. 7.5. 

crocusShdslTtRpG703/line/linePair[ ]/lineAttenuation 

This attribute displays the current line attenuation in dB, e.g. 11.0. 

crocusShdslTtRpG703/line/linePair[ ]/signalNoise 

This attribute displays the current signal to noise ratio of the line in dB, e.g. 2.5. 

The status attributes transmitPower, lineAttenuation and signalNoise do not display meaningful information 

when the line is in analogue loop (AL) or when it is not trained. These attributes are only relevant for a 

trained line. 

crocusShdslTtRpG703/line/linePair[ ]/stepupThreshold 

This attribute displays the step-up threshold in dB. 

If step-up retraining is enabled (i.e. the stepupMargin element in the line/retrain configuration structure is set 

to any value other than disabled), then the Crocus SHDSL G703 will retrain at a higher speed if the measured 

signal to noise ratio exceeds the step-up threshold value. 

The stepupThreshold value = 

• the signal to noise ratio at the moment the line entered the data state (i.e. shortly after a successful 

training cycle) 

+ 

• the stepupMargin value. 

Refer to crocusShdslTtRpG703/line/retrain on page 135 for more information. 

If the stepupThreshold attribute displays 0.0, then this means that step-up retraining is disabled (i.e. the 

stepupMargin element in the line/retrain configuration is set to disabled). 

crocusShdslTtRpG703/line/linePair[ ]/actualBitRate 

This attribute displays the maximum speed, in bits per second (bps), that could be negotiated on the line 

pair during the training sequence. 

The actualBitRate can be higher than the ifSpeed, eg. if the minLinePairSpeed is enabled.




7.5 Repeater and end status attributes 


• crocusShdslTtRpG703/end/vendorId on page 176 

• crocusShdslTtRpG703/end/vendorModel on page 176 

• crocusShdslTtRpG703/end/vendorSerial on page 176 

• crocusShdslTtRpG703/end/vendorSoftVersion on page 176 

• crocusShdslTtRpG703/end/eocSoftVersion on page 177 

• crocusShdslTtRpG703/end/shdslVersion on page 177 

• crocusShdslTtRpG703/end/eocState on page 177 

• crocusShdslTtRpG703/end/eocAlarmThresholds on page 178 

• crocusShdslTtRpG703/end/linePair[ ]/lineAttenuation on page 179 

• crocusShdslTtRpG703/end/linePair[ ]/signalNoise on page 179 


• crocusShdslTtRpG703/repeater/loopbackActivation on page 179 

• The repeater[ ] and the end objects are not present in the containment tree by default. They are added 

automatically when you configure the eocHandling attribute. Refer to 5.2 - Configuring EOC handling 

on page 57. 

• Exactly which information is retrieved from the remote SHDSL device(s) through the EOC channel 

depends on the setting of the eocHandling attribute. Refer to 5.2.4 - EOC retrieved information on 

page 60. 

• The repeater[ ] and end objects contain the same attributes, therefore only the attributes of the end 

object are listed here. 

• When the Crocus SHDSL G703 is configured for 1 pair operation, the repeater[ ] and end[ ] objects networkLinePair[2] 

and customerLinePair[2] still appear in the containment tree (although 1 pair operation has 

been configured).




crocusShdslTtRpG703/end/vendorId 

This attribute is only retrieved in case the eocHandling attribute is set to discovery, inventory, info or alarmConfiguration. 

This attribute displays information about the vendor of the repeater or end device. The vendorId structure 

contains the following elements: 

• countryCode E.g. 65295 for Belgium. 

• providerCode E.g. TLS_ for OneAccess. 

• vendorSpecific 

crocusShdslTtRpG703/end/vendorModel 

This attribute is only retrieved in case the eocHandling attribute is set to inventory, info or alarmConfiguration. 

This attribute displays the model of the repeater or end device. E.g. SHDSL TT 2P for a Crocus SHDSL 

Table Top 2 pair version. 

crocusShdslTtRpG703/end/vendorSerial 


This attribute displays the serial number of the repeater or end device. For a OneAccess devices this is 

the deviceId attribute. 

crocusShdslTtRpG703/end/vendorSoftVersion 


This attribute displays the version of the firmware used on the repeater or end device. For a OneAccess 

device this is the part after "/" of the T-code string displayed in the flashVersion attribute.




crocusShdslTtRpG703/end/eocSoftVersion 


This attribute displays the EOC software version used on the repeater or end device. 

crocusShdslTtRpG703/end/shdslVersion 


This attribute displays the SHDSL version used on the repeater or end device. 

crocusShdslTtRpG703/end/eocState 


This attribute displays the state of the EOC channel. 

Remark about the repeater object 

• While the modem is in loop condition (AL), the repeater cannot be reached. Therefore, the repeater/ 

eocState attribute will show offline while an AL test is activated. 

• During a DL test, the eocState is not changed because the repeater can still be reached with EOC messages.




crocusShdslTtRpG703/end/eocAlarmThresholds 

This attribute is only retrieved in case the eocHandling attribute is set to info or alarmConfiguration. 

What this attribute displays depends on the setting of the line/eocHandling attribute: 

If eocHandling 

is set to … 

info 

alarmConfiguration 

then … 

the eocAlarmThresholds attribute displays the values as set in the line/linkAlarmThresholds 

attribute on the remote 1 device or repeater. 

the eocAlarmThresholds attribute displays the values as set in the line/linkAlarmThresholds 

attribute on the central 2 device. 

Remark 

Note that the values are rounded off. E.g. when 28.6 dB is configured on the central 

modem, then 28 dB is shown on the remote device or repeater. 



The eocAlarmThresholds structure contains the following elements: 

• lineAttenuation 

• signalNoise




crocusShdslTtRpG703/end/linePair[ ]/lineAttenuation 


This attribute displays the line attenuation, in dB, as it is measured on the line pair of the repeater or end 

device. 

crocusShdslTtRpG703/end/linePair[ ]/signalNoise 


This attribute displays the noise margin, in dB, as it is measured on the line pair of the repeater or end 

device. 

crocusShdslTtRpG703/repeater/loopbackActivation 

This action is only present in the repeater[ ] object. 

Use this action to set up a loop at the network side of the Crocus SHDSL Repeater: 

Set the loop by selecting the action argument value initiateNetworkLoopback and executing the action (double-click 

the loopbackActivation string). Stop the loop by selecting the action argument value clearAllMaintenanceStates 

and executing the action (double-click the loopbackActivation string). 


• You can only set up a loop at the network side of the Crocus SHDSL Repeater. Not at the customer 

side. 

• You can only start the loopbackActivation action on the central device. Not on the remote device. 

• You can only start the loopbackActivation action in case the line/eocHandling attribute is set to alarmConfiguration. 

• The loopbackActivation action argument value noAction does nothing. It is only present to have a default 

value. 

.




7.6 DTE Interface status attributes 


• crocusShdslTtRpG703/g703/timeSlots on page 181 

• crocusShdslTtRpG703/g703/los on page 181 

• crocusShdslTtRpG703/g703/ais on page 181 

• crocusShdslTtRpG703/g703/lfa on page 182 

• crocusShdslTtRpG703/g703/ifDescr on page 182 

• crocusShdslTtRpG703/g703/ifType on page 183 

• crocusShdslTtRpG703/g703/ifSpeed on page 183 

• crocusShdslTtRpG703/g703/ifClocking on page 183 

• crocusShdslTtRpG703/g703/ifOperStatus on page 183





This attribute displays the time slots that are being used. This is especially useful in case you set the 

framing attribute to auto. Refer to 5.7.1 - Selecting unframed or framed mode on page 94. 

crocusShdslTtRpG703/g703/los 

This attribute displays (on / off) whether a Loss Of Signal has been detected. LOS is on when the incoming 

data is no longer present. E.g. the connection from the application towards the Crocus SHDSL G703 

is interrupted. 

crocusShdslTtRpG703/g703/ais 

This attribute displays (on / off) whether an Alarm Indication Signal has been detected. AIS is on when 

the AIS signal (also called all ones) is detected on the incoming data. E.g. the application detected a 

problem and communicates this to the Crocus SHDSL G703.




crocusShdslTtRpG703/g703/lfa 

This attribute displays (on / off) whether a Loss of Frame Alignment has been detected. LFA is on when 

the Frame Alignment Signal (FAS), which is present in time slot 0 of the G.704 framed data, is not 

detected after a certain period. 

crocusShdslTtRpG703/g703/ifDescr 

This attribute displays the DTE interface description. It is an SNMP MIB2 parameter.




crocusShdslTtRpG703/g703/ifType 

This attribute displays the DTE interface type. It is an SNMP MIB2 parameter. 

The following table shows the default ifDescr and ifType attribute for each DTE interface. 

DTE interface ifDescr value ifType value 

G703 g703 • other when the G703 interface 

is used in unframed 

mode 

• e1 when the G703 interface 

is used in framed mode 

crocusShdslTtRpG703/g703/ifSpeed 

This attribute displays the current DTE interface speed in bits per second (bps), e.g. 640000. When the 

DTE interface is down (ifOperStatus = down), the DTE interface speed is 0. 

crocusShdslTtRpG703/g703/ifClocking 

This attribute displays the clocking mode which is actually used by the Crocus SHDSL G703, e.g. internalPreferred. 

This is not necessarily the clocking mode you configured. It can be a clocking mode that is selected by 

the Crocus SHDSL G703 because it was not possible to select the clocking mode of your choice (for 

example, because the external clock signal is lost). 

crocusShdslTtRpG703/g703/ifOperStatus 

This attribute displays the current operational status of the DTE interface. The possible indications are: 

Value 

up 

down 

Description 

The DTE interface is up, data transfer is possible. 

The DTE interface is down, data transfer is not possible. For example, because 

there is no connection between the interface and the DTE.




7.7 Operating system status attributes 


• crocusShdslTtRpG703/operatingSystem/taskInfo on page 185




crocusShdslTtRpG703/operatingSystem/taskInfo 

The taskInfo table displays status information about the operating system. The table contains the following 

attributes: 

Attribute 

taskName 

taskStatus 

load30s (%) 

load5m (%) 

runningInMedium 

(%) 

runningInHigh (%) 

programCounter 

Description 

Name of the task. 

Current status. The task can have the following status values: 

• awake: This task is actually running. 

• asleep: This task is waiting on an event. 

• inactive: This task slot is not active, i.e. no task has been assigned to this slot. 

This is the load on the processor during the last 30 seconds. 

This is the load on the processor during the last 5 minutes. 

Each task can be running with a low, medium or high priority. This element gives 

the percentage of time this task is running with medium priority during the last 30 

seconds. 

Each task can be running with a low, medium or high priority. This element gives 

the percentage of time this task is running with high priority during the last 30 seconds. 

The percentage of time this task is running with low priority can be calculated 

using the following formula:100% - runningInMedium (%) - runningInHigh (%). 

This is the current value of the program counter. The program counter is the memory 

address for the current instruction of this task.



Status attributes



Performance attributes 

8 Performance attributes 

This chapter discusses the performance attributes of the Crocus SHDSL G703. The following gives an 

overview of this chapter. 

• 8.1 - Performance attribute overview on page 188 

• 8.2 - Introducing the performance attributes on page 190 

• 8.3 - Line performance attributes on page 193 

• 8.4 - Line pair performance attributes on page 196 

• 8.5 - Repeater and end performance attributes on page 199 

• 8.6 - G703 interface performance attributes on page 200 

• 8.7 - Operating system performance attributes on page 204




8.1 Performance attribute overview 



>> line 

h2Line 

h24Line 

d7Line 

line 

errorCount 

Action: retrain 

Action: testActivation 

Action: clearErrorCounter 



h2Performance 




d7Performance 

lineParameters 

performance 


h2Line 

h24Line 

d7Line 

line 



h2Performance 




d7Performance 


performance 

1. in case of a 2P version, two linePair objects are present: linePair [1] and linePair [2] 

2. not present by default, is added automatically when setting the line/eocHandling attribute






h2Performance 




d7Performance 


performance 

>> end 2 

h2Line 

h24Line 

d7Line 

line 



h2Performance 




d7Performance 


performance 

>> g703 3 

h2G703Performance 


d7G703Performance 

g703Performance 



d7G826Performance 

g826Performance 

>> operatingSytem 

currUsedProcPower 

freeDataBuffers 

totalDataBuffers 

largestFreeBlockSize 

freeBlockCount 

freeMemory 

totalMemory 

usedProcPower 

taskInfo 

3. Crocus SHDSL G703 only




8.2 Introducing the performance attributes 

Performance information can be used for the following: 

• If network problems arise, information about the history of the communication link can be reviewed 

and analysed. These statistics can be useful to locate and solve the problem. 

• By collecting performance information, an operator can keep track of the global performance of the 

network, e.g. network bottlenecks can be traced, etc. 

Before discussing the performance attributes of the Crocus SHDSL G703 in detail, some general information 

on the performance attributes of the Crocus SHDSL G703 is given. 


• 8.2.1 - Introducing the performance timing on page 191 

• 8.2.2 - Introducing the performance terms on page 192




8.2.1 Introducing the performance timing 

The following table explains the performance information timing. 

Performance 

timing 

2 hours,24 

hours,7 days 

since boot 

Description 

The performance information is accumulated during a certain time span, called a 

period. After a period, the accumulated performance information is written into a 

buffer. Then a new period starts. An interval contains several periods: 

• To cover a 2 hours interval, 8 periods of 15 minutes are kept. 

• To cover a 24 hours interval, 12 periods of 2 hours are kept. 

• To cover a 7 days interval, 7 periods of 24 hours are kept. 

The buffer in which the information is stored, is a circular buffer. I.e. every period 

(15 minutes, 2 hours or 24 hours) the most recent measured and calculated values 

are added, and the oldest values are lost. 

In this case, the performance information is kept since the latest cold boot of the 

Crocus SHDSL G703. This can be considered as a performance information summary. 

The Crocus SHDSL G703 does not contain a real-time clock, therefore time information is related to its 

internal clock. To allow you to situate the time intervals in the real time, the sysUpTime attribute is returned 

together with the performance information. It reflects the time since the latest cold boot of the Crocus 


Only the available performance information is displayed. If the interrogation happens shortly after boot, 

no values are displayed. For example for the 24 hours intervals, the new performance information is 

available only when a complete time span (i.e. 2 hours) has elapsed.




8.2.2 Introducing the performance terms 

The following table explains the performance information terms. 

Term 

Description 

sysUpTime Reflects the time since the latest cold boot of the Crocus SHDSL G703. 

min, max, avrg 

count 

time 

Display the minimum, maximum and average values calculated for the corresponding 

period.E.g. min-max-avrg value of the noise margin. 

Counts the number of times an event occurred during the corresponding 

period.E.g. the number of retrains. 

Indicates the duration of an event during the corresponding period.E.g. the time 

during which the line is up.




8.3 Line performance attributes 

This section describes the following performance attributes: 

• crocusShdslTtRpG703/line/Line on page 194 

• crocusShdslTtRpG703/line/line on page 194 

• crocusShdslTtRpG703/line/errorCount on page 194 


• crocusShdslTtRpG703/line/retrain on page 195 

• crocusShdslTtRpG703/line/testActivation on page 195 

• crocusShdslTtRpG703/line/clearErrorCounter on page 195




crocusShdslTtRpG703/line/Line 

This structured value displays the 2 hours, 24 hours and 7 days line performance. The Line 

structured value elements are the following: 

Element 

sysUpTime 

linkDownCount 

linkDownTime 

For the corresponding period, this value displays … 

the elapsed time since the last cold boot. 

the number of times the link went down. 

the total amount of time the link was down. 

crocusShdslTtRpG703/line/line 

This structured value displays the line performance since the last cold boot. Except for sysUpTime, the 

structured value elements are the same as for the Line attribute. 

crocusShdslTtRpG703/line/errorCount 

This attribute displays the amount of detected errors since the start of an ET, AL-ET or RDL-ET test. 

Every time a new ET, AL-ET or RDL-ET is started, the errorCount attribute is reset to 0.




crocusShdslTtRpG703/line/retrain 

Use this action to initiate a retrain cycle. Double click on the retrain string to execute the action. 

crocusShdslTtRpG703/line/testActivation 

Use this action to perform a test on the Crocus SHDSL G703. These tests are useful to trace possible 

problems. Possible tests are: no, al, dl, rdl, et, alEt, rdlEt. 

To execute a test, proceed as follows: 

Step 

Action 

1 In the TMA window, select the object line and the group Performance or Status. 

2 In the action window of TMA, click the left mouse button on the field under the heading 

Argument Value. 

⇒A drop down box appears. 

3 In the drop down box, select the test you want to execute. 


For more information on these tests, refer to Chapter 12 - Diagnostic tests on page 245. 

crocusShdslTtRpG703/line/clearErrorCounter 

Use this action to clear the value of the errorCount attribute. This could be useful, for example, to reset the 

error counter after the unstable period (in which errors occur anyhow) shortly after the initiation of a test. 

Double click on the clearErrorCounter string to execute the action.




8.4 Line pair performance attributes 


• crocusShdslTtRpG703/line/linePair[ ]/LineParameters on page 197 

• crocusShdslTtRpG703/line/linePair[ ]/lineParameters on page 197 

• crocusShdslTtRpG703/line/linePair[ ]/Performance on page 198 

• crocusShdslTtRpG703/line/linePair[ ]/performance on page 198 





crocusShdslTtRpG703/line/linePair[ ]/LineParameters 

This structured value displays the 2 hours, 24 hours and 7 days line pair parameters. The LineParameters structured value elements are the following: 

Element 

sysUpTime 

lineAttenuationMin (dB) 

lineAttenuationMax (dB) 

lineAttenuationAvrg (dB) 

signalNoiseMin (dB) 

signalNoiseMax (dB) 

signalNoiseAvrg (dB) 



the minimum line attenuation that was measured. 

the maximum line attenuation that was measured. 

the average line attenuation that was calculated. 

the minimum signal to noise ratio that was measured. 

the maximum signal to noise ratio that was measured. 

the average signal to noise ratio that was calculated. 

crocusShdslTtRpG703/line/linePair[ ]/lineParameters 

This structured value displays the line pair parameters since the last cold boot. Except for sysUpTime, the 

structured value elements are the same as for the LineParameters attribute.




crocusShdslTtRpG703/line/linePair[ ]/Performance 

This structured value displays the 2 hours, 24 hours and 7 days line pair performance. The Performance 

structured value elements are the following: 

Attribute 

sysUpTime 

codeViolations 

errSec 

sevErrSec 

unavailableSec 

loswSec 

moniSec 

For the corresponding period, this attribute displays … 

the time since the latest cold boot. 

the number of errored SHDSL frames that was counted. 

the number of errored seconds that was counted. 

the number of severely errored seconds that was counted. 

the number of unavailable seconds that was counted. 

the number of lost synchronisation words that was counted. 

the number of monitored seconds. 

For the correct and unambiguous definition of code violations, errored and severely errored seconds, 

unavailability and lost sync words, refer to the recommendation G.826. 

crocusShdslTtRpG703/line/linePair[ ]/performance 

This structured value displays the line pair performance since the last cold boot. Except for sysUpTime, 

the structured value elements are the same as for the Performance attribute.




8.5 Repeater and end performance attributes 



on page 57. 



page 60. 

• The performance information of the line and line pairs of the repeater and end device is only retrieved 

in case the eocHandling attribute is set to info or alarmConfiguration. Other than that, the repeater[ ] and end 

objects contain the same performance attributes as the line object. Refer to … 

- 8.3 - Line performance attributes on page 193 for more information on the line attributes. 

- 8.4 - Line pair performance attributes on page 196 for more information on the line pair attributes. 



been configured). 

Note that the sysUpTime in the performance attributes of the repeater[ ] and end objects is not the elapsed 

time since the last cold boot, but the elapsed time since the creation of the repeater[ ] or end object.




8.6 G703 interface performance attributes 


• crocusShdslTtRpG703/g703/G703Performance on page 201 

• crocusShdslTtRpG703/g703/g703Performance on page 201 

• crocusShdslTtRpG703/g703/G826Performance on page 202 

• crocusShdslTtRpG703/g703/g826Performance on page 202 


• crocusShdslTtRpG703/g703/testActivation on page 202




crocusShdslTtRpG703/g703/G703Performance 

This structured value displays the 2 hours, 24 hours and 7 days performance summary of the G703 interface. 

The G703Performance structured value elements are the following: 

Element 

sysUpTime 

losCount 

losTime 

aisCount 

aisTime 

lfaCount 

lfaTime 



the number of times a Loss Of Signal condition occurred. 

the amount of time a Loss Of Signal condition was active. 

the number of times an Alarm Indication Signal condition occurred. 

the amount of time an Alarm Indication Signal condition was active. 

the number of times a Loss of Frame Alignment condition occurred. This is only 

relevant when working in framed mode. 

the amount of time a Loss of Frame Alignment condition was active. This is only 

relevant when working in framed mode. 

Also see G703 interface performance definitions. 

crocusShdslTtRpG703/g703/g703Performance 

This structured value displays the performance summary of the G703 interface since the last cold boot. 

Except for sysUpTime, the structured value elements are the same as for the G703Performance 

attribute.




crocusShdslTtRpG703/g703/G826Performance 

This structured value displays the 2 hours, 24 hours and 7 days G.826 performance summary of the 

G703 interface. The G826Performance structured value elements are the following: 

Element 

sysUpTime 

errBlocks 

errSec 

sevErrSec 

unavailCount 

unavailTime 

bBErrors 



the number of errored blocks that was counted. 

the number of errored seconds that was counted. 

the number of severely errored seconds that was counted. 

the number of times the interface was down (i.e. unavailable, as defined in ITU-T 

recommendation G.826 Annex A). 

the amount of time the interface was down. 

the number of background block errors that was counted. 

Also refer to G703 interface performance definitions. 

crocusShdslTtRpG703/g703/g826Performance 

This structured value displays the G.826 performance summary of the G703 interface since the last cold 

boot. Except for sysUpTime, the structured value elements are the same as for the G826Performance attribute. 

crocusShdslTtRpG703/g703/testActivation 

Use this action to activate a test on the G703 interface. These tests are useful to trace possible problems. 

First select the test (i.e. the argument value), then execute the testActivation action. You can limit the 

duration of an active test on the G703 interface by using the attribute crocusShdslTtRpG703/line/testDuration 

on page 138. 

The testActivation action has the following argument values: 

Value 

no 

internalLoopback 

Description 

No test is activated. In case you want to stop a test, then select this value 

and execute the testActivation action. 

Starting an internalLoopback test on the G703 interface loops the data coming 

from the DTE back to the DTE.




G703 interface performance definitions 

The following table lists some of the definitions that are used in the ITU-T recommendations that apply 

on the G703 interface. They are listed here for completeness only. For more detailed information, refer 

to the recommendations themselves. 

Term 

defect 

Errored Block 

(EB) 

Errored Second 

(ES) 

Severely Errored 

Second (SES) 

unavailability 

Definition 

A defect is one of the following conditions: 

• Loss Of Signal (LOS, defined in G.775). 

• Alarm Indication Signal (AIS, defined in G.775). 

• Loss of Frame Alignment (LFA, defined in G.706). 

A data frame that contains one or more errors. In case of G.704 framing a frame 

is time slot 0 up to time slot 31. 

A 1 second period where at least 1 EB or defect occurred. 

A 1 second period where equal to or more than 30% EBs occur or at least 1 defect. 

The measurement of EBs depends on the operation mode: 

• Framed without CRC-4: the error detection occurs based on the detected 

Frame Alignment Signal (FAS) bit errors; 28 FAS bit errors per second matches 

a Bit Error Rate (BER) of 10-3 or more. 

• Framed with CRC-4: the error detection occurs based on CRC-4. 

Matches a period of 10 or more consecutive SESs. Refer to G.826 Annex A for a 

complete definition.




8.7 Operating system performance attributes 


• crocusShdslTtRpG703/operatingSystem/currUsedProcPower on page 205 

• crocusShdslTtRpG703/operatingSystem/freeDataBuffers on page 205 

• crocusShdslTtRpG703/operatingSystem/totalDataBuffers on page 205 

• crocusShdslTtRpG703/operatingSystem/largestFreeBlockSize on page 205 

• crocusShdslTtRpG703/operatingSystem/freeBlockCount on page 205 

• crocusShdslTtRpG703/operatingSystem/freeMemory on page 205 

• crocusShdslTtRpG703/operatingSystem/totalMemory on page 205 

• crocusShdslTtRpG703/operatingSystem/usedProcPower on page 206 

• crocusShdslTtRpG703/operatingSystem/taskInfo on page 206




crocusShdslTtRpG703/operatingSystem/currUsedProcPower 

This is the amount of processing power used during the last 650 milliseconds, expressed as a percentage 

of the total available processing power. 

crocusShdslTtRpG703/operatingSystem/freeDataBuffers 

The processor uses buffers for storing the packets during processing and/or queuing. Each buffer has a 

256 byte size, headers included. This attribute is the number of data buffers currently not in use and 

available for e.g. incoming data. 

crocusShdslTtRpG703/operatingSystem/totalDataBuffers 

This is the total number of available data buffers. 

crocusShdslTtRpG703/operatingSystem/largestFreeBlockSize 

The processor uses RAM memory for storing internal information and buffering (see totalDataBuffers). The 

different tasks allocate RAM memory on request. Tasks may also free memory again. In this way the 

total RAM memory becomes fragmented. This attribute gives the size of the largest contiguous free 

memory block expressed in bytes. 

crocusShdslTtRpG703/operatingSystem/freeBlockCount 

This is the number of free contiguous memory blocks. 

crocusShdslTtRpG703/operatingSystem/freeMemory 

This is the total free memory expressed in bytes. 

crocusShdslTtRpG703/operatingSystem/totalMemory 

This is the total RAM memory expressed in bytes.




crocusShdslTtRpG703/operatingSystem/usedProcPower 

This table lists the used processing power for the 11 most recent 30 seconds intervals. The processing 

power is expressed as a percentage of the total processing power. Each entry in the attribute used- 

ProcPower is composed of the following attributes: 

Value 

sysUpTime 

minimumPP (%) 

averagePP (%) 

maximumPP (%) 

Description 

Displays the elapsed time since the last cold boot. The next values are for 

the 30 seconds period before this relative time stamp. 

This is the minimum percentage of processing power in use during the last 

30 seconds. 

This is the average percentage of processing power in use during the last 

30 seconds. 

This is the maximum percentage of processing power in use during the last 

30 seconds. 

crocusShdslTtRpG703/operatingSystem/taskInfo 

This attribute contains status information concerning the different tasks running on the processor. It is a 

table grouping up to 31 task slots, which is the maximum number of parallel tasks running on the processor's 

operating system. 

This attribute contains the same information as taskInfo in the status group (refer to 7.7 - Operating system 

status attributes on page 184).



Alarm attributes 

9 Alarm attributes 

This chapter discusses the alarm attributes of the Crocus SHDSL G703. The following gives an overview 


• 9.1 - Alarm attribute overview on page 208 

• 9.2 - Introducing the alarm attributes on page 210 

• 9.3 - General alarms on page 218 

• 9.4 - Line alarms on page 221 

• 9.5 - Line pair alarms on page 223 

• 9.6 - Repeater and end alarms on page 226 

• 9.7 - Interface alarms on page 229




9.1 Alarm attribute overview 


totalAlarmLevel 

alarmInfo 

notResponding 

alarmSyncLoss 

configChanged 

access 

remoteAlarm 

unknownState 

coldBoot 

warmBoot 

localPowerFail 

codeConsistencyFail 

configConsistencyFail 


>> line 

alarmInfo 

linkDown 

testActive 

invalidNumRepeaters 


alarmInfo 

linkDown 


signalNoise 

errSecRatioExceeded 

sevErrSecRatioExceeded 


alarmInfo 

linkDown 


alarmInfo 

linkDown 


signalNoise 



1. in case of a 2P version, two linePair objects are present: linePair [1] and linePair [2] 

2. not present by default, is added automatically when setting the line/eocHandling attribute





alarmInfo 

linkDown 


signalNoise 



>> end 2 

alarmInfo 

linkDown 


alarmInfo 

linkDown 


signalNoise 



>> g703 3 

alarmInfo 

linkDown 

ais 

sq 

lossOfTiming 

3. Crocus SHDSL G703 only




9.2 Introducing the alarm attributes 

Before discussing the alarm attributes of the Crocus SHDSL G703 in detail, some general information 

on the alarm attributes of the Crocus SHDSL G703 is given. 


• 9.2.1 - Configuration alarm attributes on page 211 

• 9.2.2 - General alarm attributes on page 215 

• 9.2.3 - Alarm signalling on page 217




9.2.1 Configuration alarm attributes 

This section explains the attributes that allow you to configure the alarm behaviour of the Crocus SHDSL 

G703. These configuration alarm attributes are: 

• crocusShdslTtRpG703/…/alarmMask on page 212 

• crocusShdslTtRpG703/…/alarmLevel on page 212 

• crocusShdslTtRpG703/…/remoteAlarmMask on page 214




crocusShdslTtRpG703/…/alarmMask 

Use this attribute to mask or unmask the alarms of an object. This determines whether an active alarm … 

• is forwarded to the central management system (e.g. TMA Element Management or HP OpenView) 

or not. 

• causes a change of colour in the subsystem picture (refer to Chapter 10 - TMA subsystem picture of 

the Crocus SHDSL G703 on page 231). 

The alarms in the alarmMask attribute have the following values: 

Value 

enabled 

disabled 

Is the active alarm being forwarded to the central management system 

Does the active alarm cause a change of colour in the subsystem picture 

Yes. So the alarm is unmasked. 

No. So the alarm is masked. 

Alarms are always seen in the alarmInfo alarm attribute of an object, regardless of the masking of the 

alarm. I.e. even if an alarm is set to disabled in the alarmMask of an object, if the alarm condition is fulfilled 

then the alarm will be set to on in the alarmInfo of that object. However, because this alarm is disabled it 

will not be sent to the central management system. 

Only the most important alarms are unmasked (i.e. enabled) by default. All other alarms are masked (i.e. 

disabled). 

crocusShdslTtRpG703/…/alarmLevel 

Use this attribute to assign a priority level to each alarm of the corresponding object. The alarm level 

range goes from 0 to 254, where 0 is the lowest and 254 is the highest priority level. 

The alarmLevel of an unmasked, active alarm is sent to the totalAlarmLevel of the top object 

crocusShdslTtRpG703.



Alarm attributes




crocusShdslTtRpG703/…/remoteAlarmMask 

This attribute is present on the TT only. 

The remoteAlarmMask attribute enables or disables for each alarm of the corresponding object, whether: 

• a visual indication is generated (blinking error LED). 

• an alarm is sent to the remote Crocus SHDSL G703. 

By default, all the alarms in the remoteAlarmMask are set to disabled.




9.2.2 General alarm attributes 

This section describes the following alarm attributes: 

• crocusShdslTtRpG703/totalAlarmLevel on page 216 

• crocusShdslTtRpG703/…/alarmInfo on page 216




crocusShdslTtRpG703/totalAlarmLevel 

This attribute is only present in the top object of the containment tree of the Crocus SHDSL G703, 

crocusShdslTtRpG703. 

It displays the priority level of an unmasked, active alarm. When several alarms are generated at the 

same time, the highest priority level is shown. If the alarm levels are set in a structured manner, one look 

at the totalAlarmLevel attribute enables the operator to make a quick estimation of the problem. 

The value of the totalAlarmLevel attribute is also communicated to the central management system (e.g. 

TMA Element Management or HP OpenView) where it determines the colour of the icon. This colour is 

an indication of the severity of the alarm. 

crocusShdslTtRpG703/…/alarmInfo 

The alarmInfo contains the actual alarm information of the corresponding object. This information is 

updated each time there is a change in the status of an alarm within this object. 

The alarmInfo attributes are: 

Attribute 

discriminator 

currentAlarms 

previousAlarms 

alarmMask 

alarmLevel 

Displays for the corresponding object … 

the total number of alarm status changes in this object since the last cold boot. 

the current alarm status of this object. 

the previous alarm status of this object. 

the alarmMask as configured in the Configuration group. 

the alarmLevel as configured in the Configuration group.




9.2.3 Alarm signalling 

If you do not have a central management system, you could perform alarm signalling with the alarm contacts 

of the CN4 card nest. 

Example 

Suppose the following situation: 

• On a remote Crocus SHDSL TT the configChanged alarm of the Crocus SHDSL G703 object is set to enabled 

in the remoteAlarmMask. In other words: crocusShdslTtRpG703/remoteAlarmMask/configChanged = enabled. 

• On a central Crocus SHDSL CV the remoteAlarm of the top object is set to enabled in the alarmContactHighMask. 

In other words: crocusShdslTtRpG703/alarmContactHighMask/remoteAlarm = enabled. 

• The high alarm contacts of the CN4 card nest are connected in a circuit with a light bulb. 

Now the following happens: 

Phase Situation Result 

1 Someone changes the configuration of the 

Crocus SHDSL TT. 

2 On the Crocus SHDSL TT the configChanged 

alarm is enabled in the remoteAlarmMask. 

3 On the Crocus SHDSL CV the remoteAlarm 

is enabled in the alarmContactHighMask. 

4 The high alarm contacts of the CN4 card 

nest close. 

On the Crocus SHDSL TT the configChanged 

alarm becomes active. 

A remote alarm is sent to the Crocus 

SHDSL CV. 

The high alarm contacts of the CN4 card 

nest close. 

The light bulb lights up.




9.3 General alarms 


• crocusShdslTtRpG703/alarmInfo on page 219 

This section describes the following action: 

• crocusShdslTtRpG703/Cold Boot on page 220 

Refer to 9.2 - Introducing the alarm attributes on page 210 for the general alarm attributes.




crocusShdslTtRpG703/alarmInfo 

The different alarms related to the crocusShdslTtRpG703 object together with their explanation and their 

default alarmMask and alarmLevel value are given in the following table: 

The alarm … is generated … Default value 

alarmMask 

alarmLevel 

notResponding 

when the Crocus SHDSL G703 does not 

respond on the polling session of the management 

concentrator. 

enabled 4 

alarmSyncLoss when the internal alarm buffer overflows. enabled 4 

configChanged 

access 

remoteAlarm 

unknownState 

coldBoot 

warmBoot 

when the configuration of the Crocus 

SHDSL G703 is changed. 

when a management session is started on 

the Crocus SHDSL G703 itself. This alarm 

is not activated when the management 

session is established through a management 

concentrator. 

Example 

The alarm … 

• is activated in case of a TMA, TMA CLI, 

terminal (CLI or ATWIN) or EasyConnect 

session via the control connector of 

the Crocus SHDSL G703. 

• is not activated in case of any management 

session (TMA, terminal, Telnet, 

HTTP, etc.) established through a management 

concentrator on the Crocus 


when the remote Crocus SHDSL G703 is in 

alarm condition. 

each time a new Crocus SHDSL G703 is 

added to the network and before the management 

concentrator has completed a 

first successful polling session. 

when the Crocus SHDSL G703 performs a 

cold boot. 

when the Crocus SHDSL G703 performs a 

warm boot. 

disabled 1 

disabled 1 

disabled 0 

disabled 0 

disabled 1 

disabled 1





alarmMask 

alarmLevel 

localPowerFail 

codeConsistencyFail 

configConsistencyFail 

when the local power of the Crocus SHDSL 

G703 fails 

when the software consistency imposed by 

the management concentrator on the Crocus 

SHDSL G703 fails. For example, 

because of a loss of contact. 

On the management concentrator, check 

the status attribute nmsgroup/softConsistencyStatus 

to determine the problem. 

when the configuration consistency 

imposed by the management concentrator 

on the Crocus SHDSL G703 fails. For 

example, because of a loss of contact.On 

the management concentrator, check the 

status attributes nmsgroup/objectTable/config- 

State and configDiag to determine the problem. 

disabled 3 

disabled 1 

disabled 1 


This action will reboot the Crocus SHDSL G703 while the power stays up (the Crocus SHDSL G703 also 

reboots if it is powered down and up again).




9.4 Line alarms 

This section describes the following alarm attribute: 

• crocusShdslTtRpG703/line/alarmInfo on page 222 





crocusShdslTtRpG703/line/alarmInfo 

The different alarms related to the line object together with their explanation and their default alarmMask 

and alarmLevel value are given in the following table: 


alarmMask 

alarmLevel 

linkDown 

invalidNumRepeaters 

when no data link towards the remote Crocus 

SHDSL G703 is present.It does not 

necessarily mean that the line pair is disconnected. 

If the line quality is so bad that 

data transfer is not possible, a linkDown 

alarm is generated. 

when the number of repeaters you entered 

in the line/numExpectedRepeaters configuration 

attribute does not match the actual number 

of repeaters discovered by the Crocus 

SHDSL G703.The actual number of 

repeaters discovered by the Crocus 

SHDSL G703 can be seen in the line/num- 

DiscoveredRepeaters status attribute. 

enabled 3 

disabled 1 

testActive when a test is active. disabled 1




9.5 Line pair alarms 


• crocusShdslTtRpG703/line/linePair[ ]/alarmInfo on page 224 

In case of a Crocus SHDSL G703 2P, two linePair objects are present: linePair [1] and linePair [2]. 





crocusShdslTtRpG703/line/linePair[ ]/alarmInfo 

The different alarms related to the linePair[ ] object together with their explanation and their default alarm- 

Mask and alarmLevel value are given in the following table: 


alarmMask 

alarmLevel 

linkDown 



SHDSL G703 is present. 

It does not necessarily mean that the line 

pair is disconnected. If the line quality is so 

bad that data transfer is not possible, a link- 

Down alarm is generated. 

when the line attenuation exceeds the 

value configured in the line/linkAlarmThresholds 

configuration attribute for at least 10 

seconds. The alarm is cleared when the 

line attenuation drops below this value for 

at least 10 seconds. 

Note however that in case the line/eocHandling 

configuration attribute is set to alarm- 

Configuration, the central SHDSL device 

forces the remote SHDSL device to use the 

linkAlarmThresholds/lineAttenuation as configured 


For more information, refer to … 

• 5.2.2 - The EOC handling attribute on 

page 59 

• 5.2.4 - EOC retrieved information on 

page 60 

enabled 3 

disabled 1





alarmMask 

alarmLevel 

signalNoise 



when the signal noise exceeds the value 

configured in the line/linkAlarmThresholds configuration 

attribute for at least 10 seconds. 

The alarm is cleared when the signal noise 

drops below this value for at least 10 seconds. 




forces the remote SHDSL device to use the 

linkAlarmThresholds/signalNoise as configured 




page 59 


page 60 

when the errored seconds ratio exceeds 

the value configured in the line/linkAlarm- 

Thresholds configuration attribute within a 15 

minute period 1 . The alarm is cleared when 

the errored seconds ratio drops below this 

value within a 15 minute period. 

when the severely errored seconds ratio 

exceeds the value configured in the line/ 

linkAlarmThresholds configuration attribute 

within a 15 minute period 1 . The alarm is 

cleared when the severely errored seconds 

ratio drops below this value within a 15 

minute period. 

disabled 1 

disabled 1 

disabled 2 






value is not exceeded.




9.6 Repeater and end alarms 


• crocusShdslTtRpG703/end/linePair[ ]/alarmInfo on page 227 



on page 57 



page 60. 

• The repeater[ ] and end objects contain the same attributes, therefore only the attributes of the end 

object are listed here. 



been configured).




crocusShdslTtRpG703/end/linePair[ ]/alarmInfo 

The different alarms related to the linePair[ ] object together with their explanation and their default alarm- 

Mask and alarmLevel value are given in the following table:l 

The alarm … is generated … Default 

value 

alarmMask 

alarmLevel 

linkDown 



SHDSL G703 is present. 

It does not necessarily mean that the line 

pair is disconnected. If the line quality is so 

bad that data transfer is not possible, a link- 

Down alarm is generated. 

when the line attenuation exceeds the 

value configured in the line/linkAlarmThresholds 

configuration attribute of the local 

device for at least 10 seconds. The alarm is 

cleared when the line attenuation drops 

below this value for at least 10 seconds. 




forces the remote SHDSL device and any 

intermediary repeater to use the linkAlarm- 

Thresholds/lineAttenuation as configured on the 

central device. 



page 59 


page 60 

enabled 3 

disabled 1




The alarm … is generated … Default 

value 

alarmMask 

alarmLevel 

signalNoise 



when the signal noise exceeds the value 

configured in the line/linkAlarmThresholds configuration 

attribute of the local device for at 

least 10 seconds. The alarm is cleared 

when the signal noise drops below this 

value for at least 10 seconds. 




forces the remote SHDSL device and any 

intermediary repeater to use the linkAlarm- 

Thresholds/signalNoise as configured on the 

central device. 



page 59 


page 60 

when the errored seconds ratio exceeds 

the value configured in the line/linkAlarm- 

Thresholds configuration attribute of the local 

device within a 15 minute period 1 . The 

alarm is cleared when the errored seconds 

ratio drops below this value within a 15 

minute period. 

when the severely errored seconds ratio 

exceeds the value configured in the line/ 

linkAlarmThresholds configuration attribute of 

the local device within a 15 minute period 1 . 

The alarm is cleared when the severely 

errored seconds ratio drops below this 

value within a 15 minute period. 

disabled 1 

disabled 1 

disabled 2 






value is not exceeded. 

The local configured thresholds are used to generate the errSecRatioExceeded alarm, the sevErrSecRatio- 

Exceeded alarm and the bBErrRatioExceeded alarm, so these alarms can differ from the alarms generated 

on the device at the other site of the line.




9.7 Interface alarms 


• crocusShdslTtRpG703//alarmInfo on page 230 





crocusShdslTtRpG703//alarmInfo 

The different alarms related to the object together with their explanation and their default 

alarmMask and alarmLevel value are given in the following table: 


alarmMask 

alarmLevel 

linkDown 

(for G703) 

ais 

(G703) 

lfa 

sq 

(G703) 

lossOfTiming 

when there is a loss of signal. I.e. the transmit 

data is no longer present. 

when an Alarm Indication Signal (AIS) has 

been detected in the incoming G703 transmit 

data (the alarm signal needs to be 

active for at least one sceond). It means the 

application has detected an error. 

when the Frame Alignment Signal (FAS), 

which is present in time slot 0 of the G.704 

framed data, is not detected after a certain 

period.This alarm is also generated when 

the attribute crc4Insertion is set to enabled, 

but no CRC is sent by the application. (This 

does not apply when the crc4Insertion is set 

to auto.) 

when the sqThreshold value, i.e. the number 

of errored seconds, is exceeded within the 

sqTime.For example, if 10 (default) or more 

errored seconds occur within 1 minute 

(default), then a signal quality alarm is generated.Refer 

to the configuration attributes 

sqThreshold and sqTime for more information. 

when an external clocking mode is configured 

but the external clock signal is not 

present. In that case the Crocus SHDSL 

G703 switches to internal clocking mode. 

enabled 3 

disabled 2 

disabled 2 

disabled 2 

enabled 3


User manual 

TMA subsystem picture of the Crocus SHDSL G703 

10 TMA subsystem picture of the Crocus SHDSL G703 

The subsystem picture is a TMA tool which visualises the status information of the Crocus SHDSL G703. 

This chapter explains how to display the subsystem picture, and how to interpret the visual indications. 


• 10.1 - Displaying the subsystem picture on page 232 

• 10.2 - Subsystem picture elements on page 233


User manual 


10.1 Displaying the subsystem picture 

To display the subsystem picture of the Crocus SHDSL G703, proceed as follows: 

Step 

Action 

1 Open a TMA session on the Crocus SHDSL G703. Refer to 4.1 - Starting TMA on the 

Crocus SHDSL G703 on page 42. 

2 In the TMA window, press on the subsystem picture button: . 

The subsystem picture is displayed: 

3 To close the subsystem picture, press .


User manual 


10.2 Subsystem picture elements 

This section displays and labels the different elements of the subsystem picture. It also explains how the 

visual indications should be interpreted. 

Below, the Crocus SHDSL G703 subsystem picture is displayed. 

When TMA fails to upload the sub-system picture info (e.g. because TMA is disconnected), then the 

LEDs and connectors are greyed-out.


User manual 


The table below gives an overview of the subsystem picture elements and what they indicate: 

Element 

LED indicators 

Description 

They reflect the actual status of the Crocus SHDSL G703. The LED indication on 

the subsystem picture corresponds with the LED indication on the Crocus SHDSL 

G703 itself. For more information on the interpretation of the LEDs, refer to 2.9 - 

Front panel LED indicators on page 30. 

DTE interface 

This reflects the status of the DTE interface. The possible indications are: 

• green: No alarm of the object is active. 

• red: An (unmasked) alarm of the object is active. 

The layout of the connector also gives an indication of the type of DTE interface 

which is currently used in the Crocus SHDSL G703. 

Remark 

• The colours of the DTE interface only change if the alarms related to the 

object are set to enabled in the alarmMask. For more information, 

refer to 9.2.1 - Configuration alarm attributes on page 211. 

line 

This reflects the status of the line. The possible indications are: 

• green outside: No (unmasked) alarm of the line object is active. 

• red outside: An (unmasked) alarm of the line object is active. 

• green inside: No (unmasked) alarm of the linePair object is active. 

• red inside: An (unmasked) alarm of the linePair object is active. 

The colours of the interfaces only change if the alarms related to the line and/or 

linePair object are set to enabled in the alarmMask. For more information, refer to 

9.2.1 - Configuration alarm attributes on page 211. 

Example: 

If you want to avoid that the outside of the line connector turns red every time you 

execute a test, set the alarm testActive in the alarmMask of the line object to disabled. 

Note that by doing so, you also disable the sending of the testActive alarm to the 

central management system (e.g. HP OpenView).


User manual 

Software download 

11 Software download 

This chapter explains how to download new loader and application software (also called firmware) into 

the flash memory of the Crocus SHDSL G703. The following gives an overview of this chapter. 

• 11.1 - What is boot, loader and application software on page 236 

• 11.2 - Important download issues on page 240 

• 11.3 - Downloading with TMA on page 241 

• 11.4 - Downloading with TML on page 242 

• 11.5 - Downloading in loader mode on page 243


User manual 


11.1 What is boot, loader and application software 

This section explains the difference between boot, loader and application software. The following gives 

an overview of this section: 

• 11.1.1 - What is boot software on page 237 

• 11.1.2 - What is loader software on page 238 

• 11.1.3 - What is application software on page 239


User manual 


11.1.1 What is boot software 

What is boot software 

The boot software takes care of the start-up of the Crocus SHDSL G703. It is located on the lowest software 

level. 

Functionality in boot mode 

In boot mode you can only download loader software to the Crocus SHDSL G703. 

The boot mode DIP switch 

You can force the Crocus SHDSL G703 in boot mode using a DIP switch. This is necessary in case you 

want to download new loader software. 

How to identify the Crocus SHDSL G703 runs in boot mode 

When the Crocus SHDSL G703 runs in boot mode … 

• the PWR LED is on 

• the RXD and TXD LED are in a random state 

• all other LEDs are off.


User manual 


11.1.2 What is loader software 

What is loader software 

The loader software takes care of the download of application software to the Crocus SHDSL G703. It 

is located on the middle software level. 

When you start a download of application software while in application mode, the Crocus SHDSL G703 

automatically falls back to loader mode. 

Functionality in loader mode 

In loader mode the Crocus SHDSL G703 has limited functionality. In loader mode you can … 

• download application software to the local Crocus SHDSL G703 

• download application software over the line to a remote Crocus SHDSL G703. 

However, while in loader mode the Crocus SHDSL G703 can not … 

• transfer data 

• be accessed with TMA 

• be configured. 

The loader mode DIP switch 

You can force the Crocus SHDSL G703 in loader mode using a DIP switch. This is necessary in case 

you want to download new application software. 

How to identify the Crocus SHDSL G703 runs in loader mode 

When the Crocus SHDSL G703 runs in loader mode … 

• the PWR LED is on 

• the TST LED is on. 

When the Crocus SHDSL G703 switches from loader mode to application mode, the TST LED flashes 

5 times.


User manual 


11.1.3 What is application software 

What is application software 

The application software, also called firmware, completely controls the Crocus SHDSL G703. It is 

located on the highest software level. 

Functionality in application mode 

In application mode the Crocus SHDSL G703 has full functionality.


User manual 


11.2 Important download issues 

• When you upgrade the application software of the Crocus SHDSL G703, do not power off the Crocus 

SHDSL G703 until the TST LED stops blinking. Else the application software upgrade will fail. 

• When you upgrade the application software of the Crocus SHDSL G703, do not power off the Crocus 

SHDSL G703 as long as only the PWR LED blinks and all the other LEDs are off. Else the application 

software upgrade will fail. 

• When a Crocus SHDSL G703 is managed by a management concentrator (i.e. it is present in the 

management concentrator its objectTable and being polled), it is no longer possible to download software 

through the Crocus SHDSL G703 its control connector using TMA or TML. Instead, use the software 

distribution feature of the management concentrator. 

• It is not possible to use the software distribution feature of a management concentrator to download 

loader software to a Crocus SHDSL G703. 

• When you download new loader software, you also have to download the application software again.


User manual 


11.3 Downloading with TMA 

To download application software with TMA, proceed as follows: 

Step 

Action 

1 Establish a link between TMA and the Crocus SHDSL G703 through the control connector. 

Refer to 4.1 - Starting TMA on the Crocus SHDSL G703 on page 42. 

2 In the TMA window select Tools → Download… 

3 In the TMA - Download window, select the Options tab:· 

• Set the initial transfer speed to 9600 bps.· 

• If you set the maximum transfer speed to 115200 bps, the actual transfer speed will 

be negotiated between the computer and the Crocus SHDSL G703 and will be 

between 9600 bps and 115200 bps. 

4 In the TMA - Download window, select the Configuration tab, and press Add… 

5 In the Remote filename window: 

1. Select the filename you want to download (Txxxxxxx.00). 

2. Type CONTROL in the Remote file field. 

3. Press Open. 

6 When the TMA - Download window reappears, press OK. 

⇒The Crocus SHDSL G703 falls back to loader mode, then a DOS window opens 

and shows the download progress.


User manual 


11.4 Downloading with TML 

When downloading with TMA (as explained in the previous section), you actually evoke TML (Total 

Memory Loader) through TMA. You can also use TML without opening TMA. 

To download application software with TML, proceed as follows: 

Step 

Action 

1 Connect a serial port of your computer (e.g. COM1) through a straight DB9 male - female 

cable with the control connector of your Crocus SHDSL G703 as shown in the following 

figure: 

2 Open a DOS window on your computer. 

3 Go to the directory where the TML executable is located. Typically this is 

C:\Program Files\TMA. 

4 Place the software file you want to download in this directory. 

5 Type the following command to download: 

• application software: tml -c1 -v -f@CONTROL 

• loader software: tml -c1 -b -f@CONTROL 

where … 

• tml is the executable (Total Memory Loader) to download files to the OneAccess 

devices through their control port 

• -c1 specifies the COM port of the computer connected to the Crocus SHDSL G703 

(in this example COM1) 

• -v returns graphical information on the download status 

• -b puts the Crocus SHDSL G703 in boot mode. This is only necessary when you want 

to download loader software. 

• -f is the software file you want to download (e.g. T1212001.00) 

• CONTROL (in capitals!) specifies that the destination is a flash bank of the Crocus 


To see a list of all the possible TML options: type TML in your DOS windows and press 

the ENTER key. 

6 If you press the ENTER key, the software download begins.If you used the -v option 

together with the TML command, a graphical bar shows the download progress.


User manual 


11.5 Downloading in loader mode 

When a download of application software has failed or when a flash memory error occurs, the Crocus 

SHDSL G703 normally remains in loader mode. In other words, you can immediately retry to download 

the application software again. 

However, it may be possible that the application software becomes corrupt making the Crocus SHDSL 

G703 inoperative and inaccessible to TMA. In that case, new application software can still be downloaded 

by forcing the Crocus SHDSL G703 in loader mode using a DIP switch (refer to 3.1.2 - DIP 

switches of the TT on page 36. 

To download application software to a Crocus SHDSL G703 in loader mode, proceed as follows: 

Step 

Action 

1 Disconnect the Crocus SHDSL G703 from the power supply. 

2 Set DIP switch bank DS1 position 2 to off. 

To locate this DIP switch bank and for the DIP switch setting procedure, refer to 3 - DIP 

switches and straps of the Crocus SHDSL G703 on page 33. 

3 Reconnect the power supply to the Crocus SHDSL G703. 

⇒The Crocus SHDSL G703 is now in loader mode. 

4 Now proceed as explained in 11.4 - Downloading with TML on page 242. 

5 When the download is finished, disconnect the Crocus SHDSL G703 from the power supply 

again. 

6 Reset DIP switch bank DS1 position 2 to on. 

7 Reconnect the power supply to the Crocus SHDSL G703.


User manual 

Software download


User manual 

Diagnostic tests 

12 Diagnostic tests 

This chapter describes the diagnostic tests of the Crocus SHDSL G703. The following gives an overview 


• 12.1 - Introducing the diagnostic tests on page 246 

• 12.2 - Line tests on page 247 

• 12.3 - Interface tests on page 255


User manual 


12.1 Introducing the diagnostic tests 

This section gives some introductory notes on the diagnostic tests. 

Test originators and corresponding priority levels 

The following table shows the possible test originators and their priority level. 

Diagnostic tests can be generated by … 

the management system, 

the keyboard, 

the application via the interface, 

the remote Crocus SHDSL G703,(RDL test only) 

with the priority level … 

high. 

medium. 

low. 

low. 

Example 

Phase Action Result 

1 Start an interface test, for example AL. The AL test is started. 

2 Start a test in TMA, for example RDL. The AL test stops, and the RDL test starts. 

This because the interface test has a lower 

priority than the TMA test. 

3 Stop the TMA test. The interface test, in this case AL, is 

restarted. 


• Within the same priority level, the rule "first come, first served" applies. 

• The management system can stop a test started by any originator. 

• During the execution of a test, no normal data communication is possible. In order to avoid that the 

test would stay active for an indefinite time, and thus blocking the normal data transfer, a testDuration 

attribute is linked to the tests (refer to 6.3 - Line configuration attributes on page 131). This attribute 

determines how long a test lasts.


User manual 


12.2 Line tests 

This section describes the diagnostic tests you can start on the line of the Crocus SHDSL G703. The 

following gives an overview of this section: 

• 12.2.1 - The line test action on page 248 

• 12.2.2 - Error test on page 250 

• 12.2.3 - Analogue loop on page 251 

• 12.2.4 - Remote digital loop on page 252 

• 12.2.5 - Digital loop on page 254


User manual 


12.2.1 The line test action 

This section describes the following test attributes: 

• crocusShdslTtRpG703/line/testActivation on page 249 

• crocusShdslTtRpG703/line/testDuration on page 249


User manual 


The location of the testActivation attribute in the Crocus SHDSL G703 containment tree is: 

crocusShdslTtRpG703/line/testActivation 

Use this action to perform a test on the Crocus SHDSL G703. These tests 

are useful to trace possible problems. Possible tests are: no, al, dl, rdl, et, alEt, rdlEt. 

To execute a test, proceed as follows: 

(Status + Performance group) 

Step 

Action 

1 In the TMA window, select the object line and the group Performance or Status. 

2 In the action window of TMA, click the left mouse button on the field under the heading 

Argument Value. 

⇒A drop down box appears. 

3 In the drop down box, select the test you want to execute. 


crocusShdslTtRpG703/line/testDuration 

Use the testDuration attribute to set the time-out period of diagnostic tests. 

Tests are automatically terminated after this time-out period. 


Range: 00000d 00h 00m 01s - 

00000d 18h 12m 15s 

The time-out ranges from 00000d 00h 00m 01s up to 00000d 18h 12m 15s. Entering 00000d 00h 00m 00s disables 

the time-out period (i.e. diagnostic tests are not terminated after a time-out period).


User manual 


12.2.2 Error test 

Initiating the ET test activates the internal error test pattern generator and detector. Possible errors which 

are received by the detector are accumulated in an internal register. The amount of errors can be seen 

with TMA, namely in the status attribute errorCount of the line object. The error LED on the front panel will 

also light. 

When the central modem uses a Dual Port G703-Serial interface and the remote modem uses a different 

interface, then starting an ET test on the remote modem only gives erroneous results. 

How to use this test 

Example: 

Phase 

Description 

1 Start an ET test on the local Crocus SHDSL G703. 

⇒A test pattern is sent down the line. 

2 Start an ET test on the remote Crocus SHDSL G703. 

⇒The detector of the remote Crocus SHDSL G703 receives this test pattern, 

and looks for possible errors in the pattern. The quantity of errors could be 

an indication of the line quality. 

Clocking during an ET test 

When an ET test is activated, the Crocus SHDSL G703 switches to internal clocking mode.


User manual 


12.2.3 Analogue loop 

Initiating the AL test establishes an analogue loop on the local Crocus SHDSL G703. This loop is compliant 

to loop 3 as described in the ITU-T recommendation V.54. 

The loop is situated immediately behind the analogue part of the local Crocus SHDSL G703, schematically 

represented as follows: 


Example: 

Phase 

Description 

1 Start an AL test on the local Crocus SHDSL G703. 

⇒An analogue loop is established on the local Crocus SHDSL G703. 

2 Send data with the application. 

⇒If this data is received again by the application, the connection between the DTE 

and the Crocus SHDSL G703 is OK. If not, it is possible that there is a bad connection 

between the DTE and the Crocus SHDSL G703. 

In combination with the ET test, the AL test can also be used as a self-test of the Crocus SHDSL G703. 

Clocking during an AL test 

The following table shows what happens with the clocking on the Crocus SHDSL G703 when an AL test 

is activated: 

If the Crocus SHDSL G703 is in … 

internal clocking mode 

external clocking mode 

slave receive clocking mode 

and an AL test is activated, then it … 

remains in internal clocking mode. 

remains in external clocking mode. 

switches to internal clocking mode.


User manual 


12.2.4 Remote digital loop 

Initiating the RDL test establishes a digital loop on the remote Crocus SHDSL G703. This loop is compliant 

to loop 2 as described in the ITU-T recommendation V.54. 

The loop is situated immediately behind the digital part of the remote Crocus SHDSL G703, schematically 


Make sure that on the remote Crocus SHDSL G703 the rdlDetect attribute is set to enabled (refer to 6.6 - 

DTE Interface configuration attributes on page 148). Else it is not possible to initiate an RDL test on the 

remote. 


Example: 

Phase 

Description 

1 Start an RDL-ET test on the local Crocus SHDSL G703. 

⇒A digital loop is established on the remote Crocus SHDSL G703 and a test pattern 

is sent down the line. 

2 Because the remote side is in a digital loop, the test pattern returns to the local Crocus 


3 The detector receives this test pattern, and can compare it with the original transmitted 

pattern. 

⇒The quantity of inconsistencies that might exist between the original and the 

returned pattern could be an indication of the line quality.


User manual 


Clocking during an RDL test 

The following table shows what happens with the clocking on the Crocus SHDSL G703 when an RDL 

test is activated: 

If the … Crocus SHDSL G703 is in … and an RDL test is activated, 

then it …. 

local internal clocking mode remains in internal clocking 

mode. 

external clocking mode 

slave receive clocking mode 

remains in external clocking 

mode. 

switches to internal clocking 

mode. 

remote any clocking mode switches to slave receive clocking 

mode.


User manual 


12.2.5 Digital loop 

Initiating the DL test also establishes a digital loop, but on the local Crocus SHDSL G703 itself. This loop 

is compliant to loop 2 as described in the ITU-T recommendation V.54. 

The loop is situated immediately behind the digital part of the remote Crocus SHDSL G703, schematically 



With this test, you can verify the same things as with the remote digital loop. The only difference is that 

the loop is not made on the remote Crocus SHDSL G703 (as with RDL), but on the local Crocus SHDSL 

G703. This can be necessary when, for example, the remote Crocus SHDSL G703 is unable to initiate 

a remote digital loop test. 

Clocking during a DL test 

When a DL test is activated, the Crocus SHDSL G703 switches to slave receive clocking mode.


User manual 


12.3 Interface tests 

For some DTE interfaces it is possible that the application (the DTE) initiates a test on the Crocus SHDSL 

G703 via the interface. The following table gives an overview of which tests are available on which interfaces. 

It also gives a short description of the available tests. 

Available tests 

Analog loop (AL) 

Remote Digital 

Loop (RDL) 

Description 

For … 

• G703 the sending of the Sa6 bit sequence 1111 

… initiates an analogue loop (loop 3) on the local Crocus SHDSL G703, in compliance 

with ITU-T recommendation V.54. Refer to 12.2.3 - Analogue loop on 

page 251. 

For … 

• G703 the sending of the Sa6 bit sequence 1010 

… initiates a digital loop (loop 2) on the remote Crocus SHDSL G703, in compliance 

with ITU-T recommendation V.54. Refer to 12.2.4 - Remote digital loop on 

page 252. 

• Note that also these tests are automatically terminated after the time-out period as set using the test- 

Duration attribute. 

• The interface tests can be disabled via the tests attribute.


User manual 

Diagnostic tests


User manual 

Technical specifications 

13 Technical specifications 

This chapter gives the technical specifications of the Crocus SHDSL G703. The following gives an overview 


• 13.1 - Crocus SHDSL G703 types on page 258 

• 13.2 - Line specifications on page 259 

• 13.3 - RJ45 - RJ12 adapter specifications on page 261 

• 13.4 - Maximum covered distance on a noise free line on page 262 

• 13.5 - G703 interface specifications on page 263 

• 13.6 - Management interface connectors on page 264 

• 13.7 - Control connector on page 265 

• 13.8 - Diagnostic tests on page 266 

• 13.9 - Power requirements on page 267 

• 13.10 - Thermal behaviour when providing remote power on page 268 

• 13.11 - Environmental compliance on page 269 

• 13.12 - Safety compliance on page 270 

• 13.13 - Over-voltage and over-current protection compliance on page 270 

• 13.14 - EMC compliance on page 270 

• 13.15 - Mechanical dimensions on page 270


User manual 


13.1 Crocus SHDSL G703 types 

The following Crocus SHDSL G703 types exist: 

- Crocus SHDSL TT G703 

- Crocus SHDSL 2P TT G703 

- Crocus SHDSL TT G703 RP 

- Crocus SHDSL 2P TT G703 RP


User manual 


13.2 Line specifications 

• Single pair or two pair line access 

• Full duplex transmission 

• Connector: RJ45 

• Impedance: 135 ohm 

• Coding: TC PAM, compliant to ITU-T G.991.2 (G.SHDSL) 

• Line speeds: 

- 1 pair: N x 64 kbps (N = 1 … 36) 

- 2 pair: N x 128 kbps (N = 1 … 36) 

• Handshaking: compliant to G.994.1 (automatic speed negotiation) or fixed speed 

• Performance monitoring: compliant to G.826 (errored seconds, severely errored seconds, unavailability 

seconds) 

• Round trip delay: 0.6 ms 

In case of a G.703 Nx64k interface, the round trip delay ranges from 0.6 ms (unframed) over 0.8 ms 

(framed, all timeslots on) up to 3.1 ms (framed, 3 timeslots on).


User manual 


• The following table shows the connector layout of the RJ45 line connector. 

Pin Signal Figure 

1 not used 

2 not used 

3 line 2 1 

4 line 1 

5 line 1 

6 line 2 1 

7 not used 

8 not used 

1. For a Crocus SHDSL G703 2P (2 pair) version only


User manual 


13.3 RJ45 - RJ12 adapter specifications 

If you have a line cable with an RJ12 connector, you first have to plug in the RJ45 to RJ12 adapter in the 

line connector of the Crocus SHDSL G703. 

The following table shows the connector layout of the RJ12 adapter connector. 

Pin Signal Figure 

1 not used 

2 line 2 1 

3 line 1 

4 line 1 

5 line 2 1 

6 not used 

1. For a Crocus SHDSL G703 2P (2 pair) version only


User manual 


13.4 Maximum covered distance on a noise free line 

Covered distance (km) 

Line speed (kbps) 

Wire diameter (mm) 

1P 2P 0.4 0.5 0.6 0.7 0.8 0.9 1,1 

64 128 11,0 15,1 21,5 22,5 27,2 34,6 39,3 

128 256 8,0 11,0 15,6 16,4 19,8 25,2 28,6 

256 512 8,2 11,3 16,0 16,8 20,3 25,8 29,3 

512 1024 7,2 9,9 14,0 14,7 17,8 22,7 25,7 

1024 2048 5,5 7,6 10,7 11,3 13,6 17,3 19,6 

1536 3072 4,0 5,5 7,8 8,2 9,9 12,6 14,3 

2048 4096 4,2 5,8 8,2 8,6 10,4 13,2 15 

2304 4608 4,0 5,5 7,8 8,2 9,9 12,6 14,3 

• These values are valid starting from Crocus SHDSL G703 PCB revision 1.2 and firmware revision 

T2141/00800, T2145/00600 and T2136/01300 and higher. 

• If the Signal to Noise ratio is 23dB, this matches a noise margin of 0dB. A noise margin of minimum 

2dB is considered a minimum for an error ratio that matches at least 10E-7 (= S/N ratio of 25dB). In 

performance tests with noise, a noise margin of 6dB is usually taken (matching S/N ratio 29dB). From 

experience, it can be concluded that a 27dB S/N ratio gives no errors, at 25dB errors are rare.


User manual 


13.5 G703 interface specifications 

• Types: G703 and G703 Nx64k 

• Compliance: ITU-T G.703 

• Connector: 2 BNCs, 1 RJ45 

• Impedance: 75 or 120 ohm (strap selectable) 

• Coding: AMI or HDB3 (configurable) 

• Performance monitoring: compliant to G.826 

• Jitter and wander: compliant to G.823 

• Speed (G703): fixed 2 Mbps user and line speed 

• Speed (G703 Nx64k): fixed 2 Mbps user speed (for this interface, time slots have to be configured 

instead of a user speed). Line speeds up to 2 Mbps. 

• Framing (G703 Nx64k): framed or unframed (configurable), framing compliant to G.704 

• Time slots (G703 Nx64k): 

- 1 pair: N x 64 kbps (N = 1 … 32) 

- 2 pair: N x 128 kbps (N = 1 … 16) 

• CRC4 insertion (G703 Nx64k): enabled, disabled or automatic detection (configurable), frame alignment 

and cyclic redundancy check compliant to ITU-T G.706 

• Defect detection: compliant to ITU-T G.775 

• The following table shows the connector layout of the RJ45 line connector. 

Pin Signal DCE Figure 

1 receive A (+) output 

2 receive B (-) output 

3 signal ground - 

4 transmit A (+) input 

5 transmit B (-) input 

6 signal ground - 

7 not used - 

8 not used -


User manual 


13.6 Management interface connectors 

The possible management interface connectors are: 

Management interface connector 

asynchronous through the control 

connector 

Connector type 

9 pins subD (on the Crocus 

SHDSL G703) 

Speed 

9600 bps, 8+N 

synchronous through a management 

concentrator and the 

high speed bus 

backplane DIN (on the CN4 card 

nest) 

800 kbps 

For all available management tools, refer to 1.6 - Maintenance and management tools connection possibilities 

on page 11.


User manual 


13.7 Control connector 

The control connector (sometimes also called control port) is a 9 pins subD connector that is labelled 

CTRL. The signals on this connector are V.24 / V.28 signals. 

The control connector layout 

The control connector has the following pin layout: 

Pin Signal DCE Figure 

1 not used - 

2 NMS RxD output 

3 NMS TxD input 

4 not used - 

5 GND - 

6 not used - 

7 not used - 

8 not used - 

9 not used - 

Table Top 

• The connection with the computer running TMA can be made with a straight 9 pins subD (Male/ 

Female) cable or a regular 25/9 pins subD adapter cable. 

• The cable which is used to connect the TT with the 1035 Orchid LAN management concentrator can 

be ordered at the distributor (code 149220).


User manual 


13.8 Diagnostic tests 

The following diagnostic test are available on the Crocus SHDSL G703: 

• Analogue Loop (AL) 

• Digital Loop (DL) 

• Remote Digital Loop (RDL) 

• Error Test (ET) (test pattern ITU 2E15-1)


User manual 


13.9 Power requirements 

The power requirements for the different Crocus SHDSL G703 types are as follows: 

Pmax 

Input power 

Version 230 Vac (85 à 265 Vac) 1 

-48 Vdc (-36 Vdc à -72 Vdc) 2 

G703 1P 12 Vdc 3 W - 

G703 1P RP 3 W 4 W 

G703 2P RP 4 W 5 W 

1. Using switched AC/DC adapter, 230Vac → 12Vdc/1A, approx. 80% efficiency, sales code 

202752. 

2. Using the PST30 DC/DC adapter, 48Vdc → 12Vdc/1A, approx. 73% efficiency, sales code 

191706.


User manual 


13.10 Thermal behaviour when providing remote power 

This section specifically refers to the Crocus SHDSL Card Verions that can be inserted in the CN4 rack, 

being the central part of the network (with a number of Crocus SHDSL TT ‘s at the remote side). 

When using remote power, certain limitations apply with regards to the number of Card Versions that 

can be inserted in the CN4, CN4-4 and CN4-2 rack. 

Not complying with these rules will result in irreversible damage to the device. 

The following table gives an overview: 

Rack 

CN4-2 

Limitations 

Thermal 

• Only 1 card allowed that provides remote power. 

• This card must be inserted in the lowest of both slots where cooling is 

more efficient. 

• Ambient temperature must not be higher than 50 °C. 

Power 

• DC or AC powering 

CN4-4 

Thermal 

• Maximum 4 cards that provide remote power are allowed. 

• Natural cooling of the CN4-4 must be effective : the CN4-4 must be used 

in an upright position, not lying flat on its side. 


Power 

• DC or AC powering. 

• AC powering with 300W PSU. 

• AC power redundancy is allowed (if 2 AC PSU 's are present). 

CN4 

Thermal 

• If forced cooling is available, up to 12 cards delivering remote power can 

be installed. 

• If only natural cooling is available, maximum 7 cards delivering remote 

power can be installed, provided that a slot is left free between each 

card. 


Power 

• DC or AC powering 

• AC powering with 2 300W PSU 's. 

• No AC power redundancy allowed


User manual 


13.11 Environmental compliance 

• Storage conditions: ETSI ETS 300 019-1-1 Class 1.1. In addition, the storage temperature has to be 

between -25 to +70°C 

• Transport conditions: ETSI ETS 300 019-1-2 Class 2.3 

• Stationary use conditions: ETSI ETS 300 019-1-3 Class 3.2. In addition, the requirements below 

apply: 

- relative humidity 0 to 95% non-condensing and ambient operational temperature -10 to 50°C, 

unless otherwise stated in 13.10 - Thermal behaviour when providing remote power on page 268 

• Maximum altitude: 3000m 

• International protection (IP) class of protection against solid and liquids: IP40


User manual 


13.12 Safety compliance 

• EN60950-1 

• Class 1 equipment for Table Tops with 115/230 Vac internal power supply. 

• Class 3 equipment for … 

- Table Tops with 115/230 Vac external power supply adapter 

- Table Tops with -48 Vdc internal power supply 

- Card Versions. 

13.13 Over-voltage and over-current protection compliance 

The over-voltage and over-current protection complies with ITU-T K.44 and ETSI ETS 300 386-2 recommendations. 

13.14 EMC compliance 

• EN55022 B Emissions 

• EN55024 Immunity 

• EN61000-3-2 Harmonics 

• EN61000-3-3 Voltage fluctuations and flicker 

• EN61000-4-2 ESD 

• EN61000-4-3 Radiated immunity 

• EN61000-4-4 EFT/burst 

• EN61000-4-5 Surge 

• EN61000-4-6 Conducted immunity 

• EN61000-4-8 Power magnetic field immunity 

• EN61000-4-11 Voltage dips & drops 

• ENV50204 Radiated immunity against digital radio telephone 

13.15 Mechanical dimensions 

The mechanical dimensions are as follows: 

Dimensions 

Table Top 

height (mm) 45 

width (mm) 220 

depth (mm) 

weight (kg) 

215 excl. interface 

235 incl. interface 

0.75 (excl. interface)


Annex 

Annex


Annex

Crocus SHDSL G703 Annex A: 273 

Annex 

product information 

Annex A: product information 

The following table displays the product information of the Crocus SHDSL basic units. 

Sales code Product name Description 

180055 Crocus SHDSL RJ45 TT BU VAC Crocus SHDSL table top on 1 line pair, Basic Unit, 

no interface provided. Interface module available 

as separate sales item. wide-range Vac 

(Replacement for code 170814) 

180056 Crocus SHDSL RJ45 TT BU 48VDC Crocus SHDSL table top on 1 line pair, Basic Unit, 

no interface provided. Interface module available 

as separate sales item. 48 Vdc (Replacement of 

code: 171284) 

180054 Crocus SHDSL +LCD RJ45 TT BU VAC Crocus SHDSL table top on 1 line pair, Basic Unit, 

Keyboard and LCD for local programming, no 

interface provided. Interface module available as 

separate sales item. wide-range Vac 

(Replacement of code: 177936) 

180053 Crocus SHDSL 2P RJ45 TT BU VAC Crocus SHDSL table top on 2 line pairs for longer 

distances or speeds up to 4Mbit/s, Basic Unit, no 


separate sales item. wide-range Vac 

(Replacement for code 171975) 

171976 Crocus SHDSL 2P TT BU 48VDC Crocus SHDSL table top on 2 line pairs for longer 

distances or speeds up to 4Mbit/s, Basic Unit, no 


separate sales item. 48 Vdc 

177938 Crocus SHDSL 2P +LCD TT BU VAC Crocus SHDSL table top on 2 line pairs for longer 

distances or speeds up to 4Mbit/s, Basic Unit, 



separate sales item. wide-range Vac (Only 

manufactured after order!) 

177939 Crocus SHDSL 2P +LCD TT BU 48VDC Crocus SHDSL table top on 2 line pairs for longer 

distances or speeds up to 4Mbit/s, Basic Unit, 



separate sales item. 48 Vdc. (Only manufactured 

after order !) 

193491 CROCUS SHDSL3 TWIN-CV BU Crocus SHDSL twin CV on 1 line pair, suitable for 

CN4. Can alternatively be used as single 2 line 

pair modem. Basic Unit, no interfaces provided. 

Interface modules (1 or 2 modules required) 

available as separate sales items. (Replacement 

of code: 180057 

193492 CROCUS SHDSL3 2P TWIN-CV BU Crocus SHDSL CV on 2 line pairs for longer 

distances or speeds up to 4Mbit/s, suitable for 

CN4. Basic Unit, no interfaces provided. Interface 

modules available as separate sales items. 

(Replacement of code: 171977) 

177937 CROCUS SHDSL +LCD TT BU 48VDC Replaced by item 180056. Crocus SHDSL table 

top on 1 line pair, Basic Unit, Keyboard and LCD 

for local programming, no interface provided. 

Interface module available as separate sales 

item. 48 Vdc (Only manufactured after order !) 

181080 CROCUS SHDSL TT G703 230VAC Crocus SHDSL table top on 1 line pair with fixed 

G703 onboard interface. Includes European 

230VAC external power adapter

274 Crocus SHDSL G703 Annex A: 

Annex 



178713 CROCUS SHDSL 2P TT G703 RP Crocus SHDSL table top on 2 line pairs with fixed 

G703 onboard interface. Remotely powered. Can 

locally be powered directly with -48Vdc or via an 

external power plug, not included, on Vac. 

(Suitable power plug 175590 PWR-PLUG (EUR 

VERSION) 230VAC >9VDC) 

178715 CROCUS SHDSL TT G703 RP Crocus SHDSL table top on 1 line pair with fixed 

G703 onboard interface. Remotely powered. Can 

locally be powered directly with -48Vdc or via an 

external power plug, not included, on Vac. 

(Suitable power plug 175590 PWR-PLUG (EUR 

VERSION) 230VAC >9VDC) 

181081 CROCUS SHDSL TT G703 NPWR Crocus SHDSL table top on 1 line pair with fixed 

G703 onboard interface. Delivered without power 

adapter 

196336 CROCUS SHDSL 2P TT G703 230VAC Crocus SHDSL table top on 2 line pairs with fixed 

G703 onboard interface. Includes European 

230VAC external power adapter 

196337 CROCUS SHDSL 2P TT G703 NPWR Crocus SHDSL table top on 2 line pairs with fixed 

G703 onboard interface. Delivered without power 

adapter 

181082 CROCUS SHDSL TT RS530 230VAC Crocus SHDSL table top on 1 line pair with fixed 

RS530 onboard interface (V35, V36 & X21 

through conversion cables, not included). 

Includes European 230VAC external power 

adapter 

181083 CROCUS SHDSL TT RS530 NPWR Crocus SHDSL table top on 1 line pair with fixed 



Delivered without power adapter 

178716 CROCUS SHDSL TT RS530 RP Crocus SHDSL table top on 1 line pair with fixed 



Remotely powered. Can locally be powered 

directly with -48Vdc or via an external power plug, 

not included, on Vac. 

178714 CROCUS SHDSL 2P TT RS530 RP Crocus SHDSL table top on 2 line pairs with fixed 



Remotely powered. Can locally be powered 

directly with -48Vdc or via an external power plug, 

not included, on Vac. 

196338 CROCUS SHDSL 2P TT RS530 230VAC Crocus SHDSL table top on 2 line pairs with fixed 



Includes European 230VAC external power 

adapter


Annex 



196339 CROCUS SHDSL 2P TT RS530 NPWR Crocus SHDSL table top on 2 line pairs with fixed 



Delivered without power adapter 

191706 PWR-PLUG +/-48/24VDC FOR 7,5 /12VDC CPE 

DEVICES 

Wallplug power module with input range: 18 to 

72Vdc and output: 7,5 / 12Vdc for Desktop units 

delivered without power adapter. (xxx NPWR). 

Fully isolated input. Suitable for + & - DC input 

voltages. See doc OneAccess Product Quick 

Reference for compatibility with xxx NPWR item 

202752 PWR-PLUG (EUR VERSION) 230VAC->12VDC Wallplug Switched Power Module EUR type, 

230Vac -> 12Vdc for Desktop units delivered 

without power adapter. (xxx NPWR). See doc 

OneAccess Product Quick Reference for 

compatibility with xxx NPWR item


Annex 


The following table displays the product information of the Crocus SHDSL DTE interfaces. 


143666 V35 INTF. CROCUS Plug-in modular interface V.35 transparent. 

142199 V36 INTF.CROCUS Plug-in modular interface V.36 transparent. 

161611 RS-530 INTF.CROCUS Plug-in modular interface RS-530 transparent. 

142200 X21 INTF.CROCUS Plug-in modular interface X.21 transparent. 

175253 G703 INTF 2M CROCUS G.703 interface module for the Crocus SHDSL. 

Can only work with line speed 2Mbit/s. BNC 

connectors. 

175254 G703 INTF NX64K CROCUS G.703 interface module for the Crocus SHDSL. 

Can work with line speeds below 2Mbit/s. BNC 

connectors. 

150466 BRIDGE INTF.CROCUS Plug-in modular interface Ethernet Bridge for 

direct UTP LAN connection. IEEE 802.3 

compliant. 

161613 ROUTER 2M INTF.CROCUS Plug-in modular interface Ethernet Router for 


compliant. Limited to 2M. 

177455 ROUTER 10M INTF.CROCUS Plug-in modular interface Ethernet Router for 


compliant. Up to 10M.


Annex 


The following table displays cables to be used in combination with the Crocus SHDSL RS530: 


182968 CBL DCE RS530 (DB25M) - DTE V36M SH 2M Data-Cabling for TOP items: Serial CBL. See doc 

OneAccess Access Product Quick Reference. For 

application, details and pin layout see document: 

-Data cables- on the OneAccess Product dBase. 

-> Cable layout-19 

182969 CBL DCE RS530 (DB25M) - DTE V36M SH 5M Data-Cabling for TOP items: Serial CBL. See doc 





182970 CBL DCE RS530 (DB25M) - DTE X21M SH 2M Data-Cabling for TOP items: Serial CBL. See doc 





182971 CBL DCE RS530 (DB25M) - DTE X21M SH 5M Data-Cabling for TOP items: Serial CBL. See doc 





The following table displays the product information of the CN7: 


198344 Card nest CN7 ETSI card nest with 17 slots, 7U high. 

198346 Crocus SHDSL G703 NX64K TWIN-CN7 RP SHDSL card with 2 single pair SHDSL modems 

with each a G703 interface and remote power 

feeding. Fits into CN7. Line speeds 192- 2048 

kbps. 

198347 Crocus SHDSL 2P G703 NX64K TWIN-CN7 RP SHDSL card with 2 dual pair SHDSL modems with 

each a G703 interface and remote power feeding. 

Fits into CN7. Line speeds 384 - 2048 kbps. 

202755 Crocus SHDSL G703 NX64K TWIN-CN7 SHDSL card with 2 single pair SHDSL modems 

with each a G703 interface. Fits into CN7. Line 

speeds 192- 2048 kbps. 

202756 Crocus SHDSL 2P G703 NX64K TWIN-CN7 SHDSL card with 2 dual pair SHDSL modems with 

each a G703 interface. Fits into CN7. Line speeds 

384 - 2048 kbps. 

198345 Orchid CN7 Management concentrator card for CN7. Includes 

a CTRL interface for local management and an 

Ethernet interface for remote management. 

203420 Crocus SHDSL 2P G703 NX64K Repeater indoor 

RP/NPWR 

Desktop SHDSL 2 pair repeater. Remotely 

powered or locally powered (external power 

adapter not included). Suitable for indoor use. 

203421 Crocus SHDSL G703 NX64K RJ45 TT 230VAC Desktop SHDSL single pair modem with a G703 

interface with 120 Ohm RJ45 connector and 75 

Ohm BNC connectors and local 230VAC 

powering. Line speeds 192 - 2048 kbps. 

203422 Crocus SHDSL G703 NX64K RJ45 TT 48VDC Desktop SHDSL single pair modem with a G703 


Ohm BNC connectors and local 48Vdc powering. 

Line speeds 192 - 2048 kbps.


Annex 



203423 Crocus SHDSL G703 2M RJ45 TT RP Desktop SHDSL single pair modem with a G703 

interface with 120 Ohm RJ45 connector and 

remote powered. Line speed 2Mbps. 

203455 CROCUS SHDSL G703 NX64K RJ45 TT RP Desktop SHDSL single pair modem with a G703 


remote powered. Line speeds 192 - 2048kbit/s 

203424 Crocus SHDSL G703 NX64K RJ45 TT RP/NPWR Desktop SHDSL single pair modem with a G703 


Ohm BNC connectors and remote powered. 

Connector for local powering (power adapter not 

included). Line speeds 192 - 2048 kbps. 

203425 Crocus SHDSL 2P G703 NX64K RJ45 TT 

230VAC 

Desktop SHDSL 2 pair modem with a G703 


Ohm BNC connectors and local 230VAC 

powering. Line speeds 384 - 2048 kbps. 

203426 Crocus SHDSL 2P G703 NX64K RJ45 TT 48VDC Desktop SHDSL 2 pair modem with a G703 


Ohm BNC connectors and local 48Vdc powering. 

Line speeds 384 - 2048 kbps. 

203427 Crocus SHDSL 2P G703 2M RJ45 TT RP Desktop SHDSL 2 pair modem with a G703 


Ohm BNC connectors and remote powered. Line 

speed 2Mbps 

203457 CROCUS SHDSL 2P G703 NX64K RJ45 TT RP Desktop SHDSL 2 pair modem with a G703 


remote powered. Line speeds 192 - 2048kbit/s 

203428 Crocus SHDSL 2P G703 NX64K RJ45 TT RP/ 

NPWR 

191706 PWR-PLUG +/-48/24VDC FOR 7,5 /12VDC CPE 

DEVICES 

Desktop SHDSL 2 pair modem with a G703 


Ohm BNC connectors and remote powered. 

Connector for local powering (power adapter not 

included). Line speeds 384 - 2048 kbps. 

Wallplug power module with input range: 18 to 

72Vdc and output: 7,5 / 12Vdc for Desktop units 

delivered without power adapter. (xxx NPWR). 

Fully isolated input. Suitable for + & - DC input 

voltages. See doc OneAccess Product Quick 

Reference for compatibility with xxx NPWR item 

202752 PWR-PLUG (EUR VERSION) 230VAC->12VDC Wallplug Switched Power Module EUR type, 

230Vac -> 12Vdc for Desktop units delivered 

without power adapter. (xxx NPWR). See doc 

OneAccess Product Quick Reference for 

compatibility with xxx NPWR item

Crocus SHDSL G703 Annex B: 279 

Annex 

abbreviations 

Annex B: abbreviations 

The following table gives a list of abbreviations and their description. 

Terms/abbreviations 

-48Vdc 

1P 

2P 

4P 

12Vdc 

ABR 

ADSL 

AIS 

AL 

AL-ET 

AMI 

ARP 

ATM 

BOOTP 

bps 

C-Side 

CBR 

CCP 

CHAP 

CLI 

Description 

-48 Volts - Direct Current 

1 pair 

2 pair 

4 pair 

12 Volts - Direct Current 

Available Bit Rate 

Asymmetric Digital Subscriber Line 

Alarm Indication Signal 

Analogue Loop 

Analogue Loop - Error Test 

Alternate Mark Inversion 

Address Resolution Protocol 

Asynchronous Transfer Mode 

Bootstrap Protocol 

bits per second 

Customer Side 

Constant Bit Rate 

Compression Control Protocol 

Challenge Handshake Authentication Protocol 

Command Line Interface 

CN7 Card Nest 7 

CO 

CPE 

CRC 

CTRL 

CTS 

CV 

CV Twin 

CV-A 

CV-B 

dB 

Central Office 

Customer Premises Equipment 

Cyclic Redundancy Check 

Control 

Clear To Send 

Card Version 

Card Version Twin 

Card Version modem A 

Card Version modem B 

decibel

280 Crocus SHDSL G703 Annex B: 

Annex 

abbreviations 


DCD 

DCE 

DHCP 

DIP 

DL 

DLCI 

DP 

DS 

DSLAM 

DTE 

EB 

EMC 

EOC 

ERR 

ES 

ESD 

ExtTxClk 

ET 

ETSI 

FAS 

FR 

FS 

FTP 

Gb 

GB 

Gbps 

G703 

Description 

Data Carrier Detect 

Data Communications Equipment 

Dynamic Host Configuration Protocol 

Dual In line Pin 

Digital Loop 

Data Link Connection Identifier 

Dual Power/ Dual Port 

Dip Switch bank 

Digital Subscriber Line Access Multiplexer 

Data Terminal Equipment 

Errored Block 

Electromagnetic Compatibility 

Embedded Operations Channel 

Error 

Errored Second 

Electrostatic Discharge 

External Transmit Clock 

Error Test 

European Telecommunications Standards Institute 

Frame Alignment Signal 

Frame Relay 

Fuse 

File Transfer Protocol 

Gigabit 

Gigabyte 

Gigabits Per Second 

G703 interface 

HDB3 High Density Bipolar 3 

HDLC 

ICMP 

if 

IGMP 

IMAP 

High-level Data Link Control 

Internet Control Message Protocol 

Interface 

Internet Group Management Protocol 

Integrated Multi-service Access Platform


Annex 

abbreviations 


IP 

IPCP 

IPSEC 

ITU-T 

Kb 

KB 

Kbps 

L2TP 

LAN 

LCP 

LED 

LFA 

LOS 

LTU 

MAC 

Mb 

MB 

Mbps 

MIB 

N-side 

NAT 

NCP 

NMS 

NTU 

PAP 

PAT 

PCB 

PCR 

PDH 

PPP 

PPPoA 

PPPoE 

PVC 

Description 

Internet Protocol 

Internet Protocol Control Protocol 

Internet Protocol Security 

International Telecommunication Union - Telecommunication Standardization 

Sector 

Kilobit 

Kilobyte 

Kilobits Per Second 

Layer 2 Tunnelling Protocol 

Local Area Network 

Link Control Protocol 

Light Emitting Diode 

Loss of Frame Alignment 

Loss Of Signal 

Line Terminating Unit 

Media Access Control 

Megabit 

Megabyte 

Megabits Per Second 

Management Information Base 

Network Side 

Network Address Translation 

Network Control Protocols 

Network Management System 

Network Terminating Unit 

Password Authentication Protocol 

Port Address Translation 

Printed Circuit Board 

Peak Cell Rate 

Plesiochronous Digital Hierarchy 

Point-to-Point Protocol 

PPP over ATM 

PPP over Ethernet 

Permanent Virtual Circuits


Annex 

abbreviations 


PWR 

RAI 

RDL 

RDL-ET 

RFC 

RIP 

RP 

RS530 

RTS 

Rx 

RxClk 

RxD 

SA 

SDH 

SELV 

SES 


SNMP 

SPI 

SQ 

SSR 

ST 

TCP 

TC-PAM 

TFTP 

TMA 

TMA CLI 

TML 

TNV 

TS 

TST 

TT 

Tx 

Description 

Power 

Remote Alarm Indication 

Remote Digital Loop 

Remote Digital Loop - Error Test 

Request For Comments 

Routing Information Protocol 

Remote Power 

RS530 interface 

Request To Send 

Receive 

Receive Clock 

Receive Data 

Security Association 

Synchronous Digital Hierarchy 

Safety Extra Low Voltage 

Severely Errored Second 

Symmetric High-Bitrate Digital Subscriber Line 

Simple Network Management Protocol 

Security Parameter Index 

Signal Quality 

Solid State Relay 

Strap 

Transmission Control Protocol 

Trellis Coded Pulse Amplitude Modulation 

Trivial File Transfer Protocol 

Total Management Application 

TMA Command Line Interface 

Total Memory Loader 

Telecom Network Voltage 

Timeslot 

Test 

Table Top 

Transmit


Annex 

abbreviations 


TxClk 

TxD 

UBR 

UDP 

Vac 

VBR 

VBR-rt 

VBR-nrt 

VCI 

Vdc 

VLAN 

VPN 

VPI 

WAN 

Description 

Transmit Clock 

Transmit Data 

Unspecified Bit Rate 

User Datagram Protocol 

Volts - Alternate Current 

Variable Bit Rate 

Variable Bit Rate real-time 

Variable Bit Rate non-real-time 

Virtual Channel Identifier 

Volts - Direct Current 

Virtual Local Area Network 

Virtual Private Networks 

Virtual Path Identifiers 

Wide Area Network


Annex 

abbreviations


Annex 

Index 

1 

Index 

A 

absolute addressing 

use 101 

access to PDH networks 73 

examples 74 

synchronisation 73 

access to SDH networks 76 

asynchronous or synchronous 76 

DXC 77 

examples 78 

typical 2 Mbit/s connections 76 

accessing PDH and SDH networks 

clocking 65 

action, what is 49 

activating 

configuration 115 

alarm attributes 207 

configuration 211 

general 215 

introduction 210 

overview 208 

alarm signalling 217 

alarms 

end 226 

general 218 

interface 229 

line 221 

line pair 223 

repeater 226 

analogue loop 251 

application software 

what is 236, 239 

attribute - action 

activate configuration 129 

clearErrorCounter 170 

Cold Boot 162 

cold boot 130 

load default configuration 116, 129 

load saved configuration 130 

loopbackActivation 179 

maximumSpeedSearch 171 

attribute - alarm 

alarmInfo 216, 219, 222, 224, 227, 230 

alarmLevel 212 

alarmMask 212 

Cold Boot 220 

remoteAlarmMask 214 

totalAlarmLevel 216 

attribute - configuration 

aisDetection 149 

alarmContactHighMask 

top object 128 

alarmContactLowMask 


alarmLevel 

dteInterface object 150 

line object 144 

linePair object 146 


alarmMask 

dteInterface object 150 

line object 144 

linePair object 146 


asymmetricPsd 138 

channel 54, 132 

clocking 83, 150 

cms2Address 152 

coding 98, 149 

consoleNoTrafficTimeOut 152 

crc4Insertion 98 

ctrlPortProtocol 102, 153 

dualPairMode 143 

eocChannel 56, 139 

eocHandling 59, 139 

forwardTmaToCtrlPort 103, 128 

forwardTmaToLine 103, 128 

framing 94 

linkAlarmThresholds 140 

management 105, 142 

minLinePairSpeed 89, 135 

mode 55, 134 

name 142, 150 

numExpectedRepeaters 139 

rdlDetect 150 

region 54, 132 



retrain 135 

saBits 106 

security 127 

sqThreshold 149 

sqTime 149 

startupMargin 138 

sysContact 127 

sysLocation 127 

sysName 127 

testDuration 138, 249 

timeSlots 95, 149 

timingMode 64, 133 

txEocMessages 139 

attribute - performance 

G703Performance 201 

G826Performance 202 

Line 194 

LineParameters 197 

Performance 198 

clearErrorCounter 195


Annex 

Index 

currUsedProcPower 205 

errorCount 194 

freeBlockCount 205 

freeDataBuffers 205 

freeMemory 205 

g703Performance 201 

g826Performance 202 

largestFreeBlockSize 205 

line 194 

lineParameters 197 

performance 198 

retrain 195 

taskInfo 206 

testActivation 195, 202, 249 

totalDataBuffers 205 

totalMemory 205 

usedProcPower 206 

attribute - status 

actualBitRate 174 

ais 181 

asymmetricPsd 169 

bootVersion 161 

configurationSaving 161 

deviceId 161 

eocAlarmThresholds 170, 178 

eocSoftVersion 177 

eocState 177 

errorCount 169 

flash1Version 162 

framerType 166 

ifClocking 183 

ifDescr 164, 182 

ifOperStatus 164, 173, 183 

ifSpeed 164, 173, 183 

ifType 164, 183 

lfa 182 

lineAttenuation 174, 179 

linePairsSwapped 169 

loaderVersion 161 

los 181 

maxLinePairSpeed 165 

maxSpeedResult 168 

maxSpeedSearch 168 

messages 160 

minLinePairSpeed 164 

numDiscoveredRepeaters 169 

powerSource 162 

region 169 

shdslVersion 177 

signalNoise 174, 179 

status 173 

stepupThreshold 174 

sysDescr 160 

sysObjectID 160 

sysServices 160 

sysUpTime 160 

taskInfo 185 

testOriginator 167 

testStatus 167 

testType 166 

timeSinceLastRetrain 173 

timeSlots 181 

transmitPower 174 

vendorId 176 

vendorModel 176 

vendorSerial 176 

vendorSoftVersion 176 

attribute string, reading viii 

attribute, what is 49 

B 

basic configuration 

passwords 111 

basic line parameters 

configuring 54 

boot software 

what is 236, 237 

C 

changing DIP switch settings 

of the TT 39 

changing strap settings 

of the TT 39 

clocking 

accessing PDH and SDH networks 65 

clocking mode 


configuring on the Crocus SHDSL G703 83 

compatibility with other SHDSL devices 119 

configuration 

activating 115 


configuration actions 

executing 113 

what is 114 

configuration attributes 123 

general 126 

interface 148 

line 131 

line pair 145 

management 151 

overview 124 

configuration types 114 

configuring 

basic line parameters 54 

clocking mode 82 

clocking mode on the Crocus SHDSL G703 

83 

EOC handling 57 

framing 93 

interface specific attributes 98


Annex 

Index 

3 

management attributes 99 

management data on a G703 interface 106 

management data on the line 105 

minimum line speed 87 

time slots 93 

timing mode 64 

connecting 

Crocus SHDSL TT 20 

line to Table Top 24 

power supply 22 

containment tree 50 

terminology 48 

what is 49 

control connector 

forwarding management data 103 

selecting the purpose 102 

specifications 265 

conventions in this manual 

graphical vii 

typographical vi 

copyright notice ii 

Crocus SHDSL 

attribute overview 51 

connecting the TT 20 

DIP switches 33 

features 4 


maintaining 41 

product overview 5 

straps 33 

types 258 

crocusShdslTtRpG703 143 

D 

data carrier detect LED (DCD/109) 32 

diagnostic tests 245 



digital loop 254 

DIP switch table, reading viii 

DIP switches 33 

changing settings of the TT 39 

of the TT 34, 36 

displaying the subsystem picture 232 

document 

conventions 

graphical vii 

typographical vi 

copyright notice ii 

documentation set v 

environmental information iv 

firmware version described in this ix 

intended audience ix 

organisation v 

properties ii 

statements iii 

your feedback ix 

documentation set v 

downloading 

in loader mode 243 

with TMA 241 

with TML 242 

E 

EMC compliance 


end 

alarms 226 

performance attributes 199 

status attributes 175 

environmental compliance 


environmental information iv 

EOC 

configuring handling 57 

discovering devices on the SHDSL line 60 

EOC handling attribute 59 

retrieved information 60 

what is 58 

error test 250 

example 

management over the line and the control 

port 107 

management over the line and the E1 interface 

109 

executing configuration actions 113 

F 

feedback ix 

firmware 

version ix 

forwarding management data to the line and 

control connector 103 

framed mode 

selecting 94 

framing 


front panel LEDs 

indicators 30 


G 

G703 interface 

configuring management data 106 

interface performance attributes 200


Annex 

Index 


general 


alarms 218 



group, what is 49 

I 

Identification ix 

important download issues 240 

important remark 

on the minimum line pair speed 88 

installation and connection precautions 19 

Installing and connecting 13 

interface 

alarms 229 



tests 255 

interface performance attributes 

G703 interface 200 

interface specific attributes 


introducing 

maintenance and management tools 9 

introduction 


Crocus SHDSL 3 


front panel LEDs 31 

management attributes 47 

performance terms 192 

performance timing 191 

TMA 43 

L 

LED 

data carrier detect (DCD/109) 32 

power (PWR) 32 

serial (SERIAL) 32 

LED indicators 

front panel 30 

line 

alarms 221 


configuring management data 105 

forwarding management data 103 




tests 247 

line pair 

alarms 223 




line test action 248 

load default configuration 115 

action in TMA 116 

using a DIP switch 117 

loader software 

what is 236, 238 

low speed limitations on the G703 Nx64k interfaces 

97 

M 

maintaining the Crocus SHDSL 41 

maintenance and management 

connection possibilities 11 

maintenance and management tools 

introducing 9 

management 


rules of thumb and remarks 100 

management attributes 


management interface connectors 


management tools 

entering passwords 112 

maximum covered distance on a noise free line 


mechanical dimensions 


minimum line pair speed 

attribute 89 

important remark 88 

purpose 92 

minimum line speed 


motherboard 

Table Top 35 

N 

network clocking principles 67 

central clock 67 

hierarchical structure 67 

station clock 67 

O 

object, what is 49 

operating system


Annex 

Index 

5 


status 184 

organisation of this manual v 

over-current protection compliance 


overview 




remote power operation 27 


over-voltage protection compliance 


P 

passwords 

adding to the security table 112 

basic configuration 111 

entering in the different management tools 

112 

PDH networks 68 

asynchronous tributaries 68 

disadvantages 69 

gateways 69 

timing 69 


end 199 

line 193 

line pair 196 

operating system 204 

overview 188 

repeater 199 

performance terms 


performance timing 


possible clocking modes versus DTE interface 

86 

Power back-off 8 

power LED (PWR) 32 

power requirements 


power supply 

connecting 22 

product information 273, 279 

DTE interfaces 276 

product overview 

Crocus SHDSL 5 

purpose of the minimum line pair speed 92 

R 

reading 

a DIP switch table viii 

an attribute string viii 

relative addressing 

use 101 

remarks on 

dualPairMode attribute 143 

opening the housing 34 

RP sink 28 

selecting a site 16 

remote digital loop 252 

remote power 

what is 26 

remote power operation 25 

overview 27 

remote power sink operation 

how 28 

repeater 

alarms 226 



use 29 

RJ45 - RJ12 adapter 


rules of thumb and remarks concerning management 

100 

S 

safety 

instructions 14 

requirements ii 

safety compliance specifications 270 

SDH networks 70 

network elements 71 

redundant ring structures 72 

SDH hierarchy 70 

synchronisation 72 

security table 

adding passwords 112 

selecting 

a site 16 

purpose of the control connector 102 

time slots 95 

unframed or framed mode 94 

serial LED (SERIAL) 32 

signal and protective ground interconnection 23 

software download 235 

specifications 

control connector 265 

Crocus SHDSL types 258 


EMC compliance 270 

environmental compliance 269


Annex 

Index 

G703 interface 263 

line 259 

management interface connectors 264 

maximum covered distance on a noise free 

line 262 

mechanical dimensions 270 

over-current protection compliance 270 

over-voltage protection compliance 270 

power requirements 267 

RJ45 - RJ12 adapter 261 

safety compliance 270 

starting a TMA session 

through a management concentrator 46 

through the control connector 44 

starting TMA on the Crocus SHDSL 42 

statements iii 


end 175 

general 159 

interfaces 180 

line 163 

line pair 172 

overview 156 

repeater 175 

step-by-step configuration 53 

straps 33 

changing settings of the TT 39 

of the TT 34, 37 

structured value, what is 49 

subsystem picture 

display 232 

elements 233 

synchronous interfaces 80 

data transfer 80 

exchange of clock signals 81 

U 

unframed mode 

selecting 94 

unpacking 15 

using 

a repeater 29 

relative or absolute addressing 101 

V 

value, what is 49 

W 

wall mounting 17 

warning 

EMC 19 

ESD 19 

important safety instructions 14 

safety warning 14 

what is 

application software 236, 239 

boot software 236, 237 

containment tree 49 

EOC 58 

loader software 236, 238 

remote power 26 

T 

Table Top 

connections 21 

motherboard 35 

technical specifications 257 

time slots 


selecting 95 

transposition 96 

timing mode 


TMA subsystem picture 231 

transposition 

time slots 96 

troubleshooting 118

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