99811500; Optical Compact Receivers - ORA 9022-1G and ORA ...

Optical Compact Receivers
ORA 9022-1G and ORA 920/921
Antennen · Electronic

Optical Compact Receiver
Details
Possibilities
Optical Interfaces
Technical Data
Components
ORA 9022-1G – OPTICAL C
Modular FTTC Fibre Node
Top functionality
Internal optical interfaces for unrestricted
outdoor operation
(Protection class IP 54)
Exterior optical interfaces also possible as
option
High level of functionality in compact design
Electronic settings using hand-held unit
Automatic levelling in the forward path
Electronically adjustable matrix in return path
Convenient fibre compartment: WDM coupler
or splitter can be integrated
Full redundant operation possible in forward
and return path
The optical compact receiver ORA 9022-1G from
Kathrein combines previously unparalleled functionality
with excellent technical data at an excellent
price-performance ratio.
An integrated, double-sided fibre compartment
houses the fibres and optical connectors.
Practical detail:
there is also space for mini-tube or compact
optical splitters or WDM couplers. They are then
protected and a separate splice housing is thus
unnecessary.
This concept is also advantageous during installation:
the optical receiver can be completely preassembled.
During installation in the field it is only
necessary to make the fibre connections.
1 or 2 active high level outputs
(2 separate output stages)
Output level up to 112 dBμV per output
"Plug-and-Play" due to combination of AGC
(optical input level) and ALSC
(via 2 pilot signals)
1 or 2 plug-in return path transmitters for
segmentation or redundancy
Optical DFB return path transmitter modules
in 1310 nm CWDM technology available
Separate broadband inputs up to 200 MHz
in return path
Segmentation or redundancy
Monitorable by optional HMS or
DOCSIS transponder module
Highly efficient switched-mode power supply
Optical connectors: SC/APC or E-2000
2

OMPACT RECEIVER
Optical Compact Receiver
Details
Possibilities
Optical Interfaces
Technical Data
Components
Fully redundant
The device can be equipped electro-optically with
plug-in modules for forward path receivers or
return path transmitters. Up to two modules in
each case provide fully redundant operation.
The modules are easy to replace.
Various DFB types in 1310 nm and in CWDM
technology are available as return path transmitters.
Thanks to the high output
power of up to +6 dBm,
very large distances
can be covered.
As a result, it is
possible to design
optical fibre networks
without intermediate hubs.
During automatic levelling the operator only needs
to define the required output level and slope.
At the press of a button the device then automatically
sets optimal dynamic data. The copy function
can copy all settings and transfer them to
other devices: setup could hardly be quicker. The
integrated 2-pilot control and DC-light controlled
AGC ensure a constant output level.
Variable return path management
Particularly interesting for step-by-step
network expansion is the electronically
switchable return path matrix. The two
return path inputs, which are independent
due to separate diplex filters,
can be switched as required to the
two return path transmitters.
For instance, both return paths
can be initially coupled to one
transmitter. With increasing
data traffic, a second return
path transmitter can be fitted
and each of the two return paths
connected to a dedicated transmitter.
An external ingress test socket is available for
each of the return paths so that measurements
can be performed quickly. The signal flow direction
on these test sockets can be switched from
"measure" to "inject" so that signals can be
injected into the return paths. This function can
also be used for broadband return path inputs up
to 200 MHz.
"Plug-and-Play" redefined
All device settings are adjusted electronically using
the hand-held unit HTE 10. This feature not only
saves plug-in cards, but also simplifies setup.
The optical compact receiver ORA 9022-1G from
Kathrein is suitable for all cable network operators
with HFC networks. Due to the step-by-step segmentation
features, the plug-in modules and the
integrated fibre compartment, it provides the flexibility
to optimally adapt HFC networks to demand.
3

Optical Compact Receiver
Details
Possibilities
Optical Interfaces
Technical Data
Components
ORA 9022-1G –
Redundancy
Compact plug-in modules provide redundancy
in the forward and return path.
The modules can be easily upgraded or
replaced in operation.
Electronic setup
All parameters and operating data settings
are adjusted electronically using the hand-held
unit HTE 10. This feature allows automatic
levelling in the forward path and pre-setting
in the return path. The values set can be
copied at the press of a button and transferred
to another device.
Integrated fibre compartment
The integrated fibre compartment houses
the fibres connected, optical connectors
and splices.
Compartment feature for optical
splitters or multiplexers
Mini-tube or compact accessories can be
straightforwardly fastened to the fibre
compartment.
Optical interfaces either internal or external
Due to the flexible interface management,
the ORA 9022-1G adapts straightforwardly to
the required type of connection. Pigtails or
pre-assembled optical break-out cables can
be laid inside the device. As a result the
optical connectors are housed with
complete protection. Mounting outdoors
to protection class IP 54 is then possible.
Using the optical coupling fastener, the
connectors can also be attached to the
exterior. Quick connection with pigtails is
then possible.
4

DETAILS
Optical Compact Receiver
Details
Possibilities
Optical Interfaces
Technical Data
Components
Flexible monitoring via DOCSIS
or HMS
The ORA 9022-1G can already take advantage
of all the benefits DOCSIS monitoring
has to offer. What's more, it can be integrated
in any HMS-compatible monitoring
system.
Electronically switchable return path matrix
Two separate diplex filters make it possible
to handle the signals from the two return
path inputs separately. Segmentation using
two return path transmitters is possible as
is the aggregation of both return paths.
In this case, redundant operation with
automatic switching is also possible.
Externally accessible test sockets and
broadband return path inputs
Each return path route also has a dedicated
test socket as well as an Ingress Control
Switch (ICS). The test sockets can be
switched. As a result both the incoming
return path signal can be checked and also
test signals injected. The sockets can also
be used for separate return path injection
as a broadband return path input up to
200 MHz.
Two active output stages
Each RF output has a separate final stage.
Due to the excellent dynamic data, longer
amplifier cascades can also be connected
downstream. If operated with one output,
the unused final stage can be simply switched
off to reduce the power consumption.
5

Optical Compact Receiver
Details
Possibilities
Optical Interfaces
Technical Data
Components
ORA 9022-1G – ALL THE PO
Monitoring transponder
Possible configuration:
TVM 850/H, 26210077
TVM 1000, 26210086
Electronic settings
Using hand-held unit
HTE 10, 25010005
Optical receiver modules
(2 insert positions)
Possible configuration:
ORD 20, 24810040
ORD 21, 24810092
To operate the ORA 9022-1G
at least one receiver module
must be fitted.
Optical return path transmitter
(2 insert positions)
Possible configuration:
OSR 9003, 24610201
OSR 9006-C1x, 246102xx
OSR 9003 P65-C15, 24610385
Fibre entry
Two variants are possible:
- Entry of optical breakout cables or pigtails
using PG gland (inluded in delivery scope)
- Optical coupling fastener
ZOH 04, 24810159
6
Electronically switchable return path matrix
Possible configuration:
- EBC 90-1G, 24510113, if both return path
inputs are to be combined in one return path
transmitter
- Otherwise can be left empty
- In special cases a EAC 9x-1G tap
can also be fitted

Elektronische Einstellungen
mit Handbedienteil
HTE 10, 25010005
SSIBILITIES AT A GLANCE
Optical Compact Receiver
Details
Possibilities
Optical Interfaces
Technical Data
Components
Bracket for optical components in
mini-tube design or splices
Possible configuration:
BOVR 02-SC, 24810097
BWMR 1310/1550, 24810098
Bracket for optical couplers
Possible configuration:
OKU 01 SC, 24810031
OKU 01 SC-E, 24810099
OKU 01 E, 24810100
Up to six optical couplers OKU 01 SC and/or
OKU 01 E or up to four OKU 01 SC-E can be
used.
Compartment for fibres, pigtails, patch cables
Universal insert position
Insert position for possible system equaliser.
As standard a 0 bridge is fitted in this insert.
Possible configuration:
ERD 810 ERZ 630
ERD 813 ERZ 940
ERD 814 ERC 22
(see page 13)
RF interfaces
Possible configuration:
PG-11 glands or cable fittings
Possible patch cables for connections inside
the device:
OFC 90/SC, 24810101
OFC 90/SC-E, 24810102
Output splitter field
Possible configuration for operation with
two outputs:
EBC 90-1G, 24510113
EAC 93-1G, 24510115
EAC 90-1G, 24510116
EAC 94-1G, 24510114
Note: A plug-in card is not required for
operation with one output.
7

Optical Compact Receiver
Details
Possibilities
Optical Interfaces
Technical Data
Components
OPTICAL INTERFACES
SC/APC version required:
Optical receiver module ORD 20 (1):
SC/APC device interface, pigtail or cable
can be connected directly
Optical receiver module ORD 21 (2):
pigtail device interface with SC/APC,
connection of pigtail or cable using
optical coupling OKU 01/SC
(1)
Optical return path transmitter OSR 900x (3):
pigtail device interface with SC/APC,
connection of pigtail or cable using
optical coupling OKU 01/SC
(2)
(3)
E-2000 version required:
Optical receiver module ORD 20 (4):
SC/APC device interface, adapter to
E-2000 with patch cable OFC 90/SC and
optical coupling OKU 01 SC-E
(or OFC 90/ SC-E and OKU 01 E)
Optical receiver module ORD 21(5):
pigtail device interface with SC/APC,
adapter to E-2000 with optical coupling
OKU 01 SC-E
(4)
Optical return path transmitter OSR 900x (6):
pigtail device interface with SC/APC,
adapter to E-2000 with optical coupling
OKU 01 SC-E
(5)
8
(6)

Elektronische Einstellungen
mit Handbedienteil
HTE 10, 25010005
TECHNICAL DATA
Optical Compact Receiver
Details
Possibilities
Optical Interfaces
Technical Data
Components
Type ORA 9022-1G
Order no. 24710033
Operation with receiver module ORD 21 ORD 20
Forward path
Frequency range MHz 85-1000 5)
Optical wave length nm 1271-1611
Optical return loss dB > 40
Optical input level range, 1310 nm, nominal dBm -6 ... +2 -7 ... -1 1)
Optical input level range, 1550 nm, nominal dBm -7 ... +1 -8 ... -2 1
Max. optical input power (permanent) dBm +3
Nominal optical modulation index (OMI) % 4.1
Equivalent noise current density, input pA/√Hz 4 4.5
Impedance Ω 75
Number of outputs (internally settable) 1 or 2
Max. output level, per output (practical operation) 862/1000 MHz dBμV 112/114
Output pre-emphasis 85-862 MHz dB 0-10
Frequency response dB ± 1.0
Setting range lower pilot frequency MHz 82.5 … 230
Setting range upper pilot frequency MHz 570 … 870
Max. output level acc. to CENELEC 1)
CSO > 60 dB dBμV 116
CTB > 60 dB dBμV 114
Return loss (at 85 MHz) dB > 15
Hum modulation ratio at 7 A dB > 67
Return path (general): see also product information OSR 900x
Frequency range (through diplex filter) MHz 5-65
Frequency range (through broadband inputs) MHz 5-200
Impedance Ω 75
Return loss dB 18
Frequency response (total) dB ± 1.5
Input level for OMI of 5 % (per channel) dBμV 65 2)
Attenuation ICS dB 0/6/40
Power supply
Input voltage range V AC 30-72
Mains frequency range Hz 47-63
Power consumption incl. an ORD 2x, 1/2 active outputs W 23/31
Power consumption fully-equipped, 1/2 active outputs 4) W 30/38
Remote feed current on the outputs A < 7
Remote feed current feed-in (power passing) A < 10
General data
Radiated interference power 5-30 MHz dBpW < 27-20
Radiated interference power 30-862 MHz dBpW < 20
RF connections (external) PG 11
Ingress test sockets/broadband inputs (external)
F-type connectors (female)
Dimensions (W x H x D) mm 280 3) × 125 × 244
Weight kg 3.1
Housing material
Aluminium diecast, varnished
Protection class acc. to DIN EN 60529 IP 54
1) Measurement conditions: output level 110 dBμV, 9 dB pre-emphasis
2) 3 dB fewer for return path segmentation
3) 307 mm incl. hinges
4) With TVM 850/H; the value increases by approximately 2 W when TVM 1000 is used
5) With ORD 20 max. 862 MHz operation possible
9

Optical Compact Receiver
Details
Possibilities
Optical Interfaces
Technical Data
Components
ORA 9022-1G - THE COMP
Optical compact receiver
ORA 9022-1G 24710033
Optical receiver modules
ORD 21
Receiver module
ORD 20 24810040
Technical data on page 9
Wide range receiver module
ORD 21 24810092
Technical data on page 9
ORD 20
Optical return path transmitters
OSR 9003, +3/+6 dBm, 1310 nm 24610201
OSR 9006-C11, +6 dBm, 1471 nm 24610203
OSR 9006-C12, +6 dBm, 1491 nm 24610204
OSR 9006-C13, +6 dBm, 1511 nm 24610205
OSR 9006-C14, +6 dBm, 1531 nm 24610206
OSR 9006-C15, +6 dBm, 1551 nm 24610207
OSR 9006-C16, +6 dBm, 1571 nm 24610208
OSR 9006-C17, +6 dBm, 1591 nm 24610209
OSR 9006-C18, +6 dBm, 1611 nm 24610210
OSR 9003 P65-C15, +3/+6 dBm, 1551 nm 24610385
• Optical return path transmitter modules used
in the ORA 9022-1G and ORA 920/921
• Opto-electrical conversion of return path signals
• DFB laser with optical isolator
• Optical output power: +6 dBm or +3 dBm
• 8 different CWDM wave lengths can be selected, additional wave lengths on request
Type OSR 9003 OSR 9006-Cxx OSR 9006 P65-C15
Order no. 24610201 246102xx 24610385
Optical wave length(s) nm 1310
1471/1491/1511/1531/
1551/1571/1591/1611
1551
Optical output level dBm +3/+6 1) +6 +3/+6
Frequency range (via diplexer in ORA 90xx/ORA 90xx-1G/ORA 9xx) MHz 5-65
Frequency range
(via broadband input in ORA 90xx/ORA 90xx-1G/ORA 9xx)
MHz 5-200
Relative Intensity Noise dB/Hz -155
Impedance Ω 75
Return loss (5 MHz) dB > 18
Second pilot tone MHz - - 65
OMI second pilot tone % - - 2 ± 0.5
1) Switchable when used in the ORA 9022 or ORA 9022-1G

Elektronische Einstellungen
mit Handbedienteil
HTE 10, 25010005
ONENTS AT A GLANCE
Optical Compact Receiver
Details
Possibilities
Optical Interfaces
Technical Data
Components
Monitoring transponder HMS protocol
TVM 850/H 26210077
• Monitoring transponder for HMScompatible
monitoring systems
• Monitors various parameters such as
voltage, current drain and internal temperature
• Controls the Ingress-Control switch in
correspondingly equipped devices
Type TVM 850/H
Order no. 26210077
Input frequency range MHz 75-90.5
Input level range dBμV 50-95
Output frequency range MHz 5-42
Max. output level dBμV 105
Power consumption W 1
Monitoring protocol
HMS
Suitable for
VGO 939, VGF 939, VGO 939-1G, VGF 939-1G, VOS 952/953, VOS 952-1G,
VOS 953-1G, ORA 9022, ORA 9022-1G, ORA 920/921, VGP 9033,
VGP 9033-1G, VGP 9041, VGx 9030/9040
Monitoring transponder (Euro)DOCSIS protocol
TVM 1000 26210086
• Monitoring transponder for monitoring via
(Euro)DOCSIS 2.0
• Monitors various parameters such as
voltage, current drain and internal temperature
• Controls the Ingress-Control switch in
correspondingly equipped devices
• Additional monitoring functions, see page 23
Type TVM 1000
Order no. 26210086
Input frequency range MHz 90-862
Input level range dBμV 48-78
Output frequency range MHz 5-65
Max. output level dBμV 113-118
Power consumption W 3.5
Monitoring protocol DOCSIS/EuroDOCSIS 2.0
Suitable for
VGO 939, VGO 939-1G, VGF 939, VGF 939-1G, VOS 952/953, VOS 952-1G, VOS 953-1G,
ORA 9022, ORA 9022-1G, ORA 920/921, VGP 9033 as of version A03 (Nov. 2008),
VGP 9033-1G, VGP 9041 as of version A02 (Nov. 2008), VGx 9030/9040
11

Optical Compact Receiver
Details
Possibilities
Optical Interfaces
Technical Data
Components
ORA 9022-1G - COMPONE
Hand-held unit
HTE 10 25010005
TDK 10 26210054
TDK 12 26210076
The hand-held unit has the following
functions:
• All appropriately equipped amplifiers or
modules can be set and operated
• All settings are displayed
• The last settings are saved
(Copy function)
• The hand-held unit is power-supplied from the
respective module
• Distances:
- Data transfer between HTE 10 and the
amplifier or module over max. 14 m
- Standard connection cable: 2 m
(included in the delivery scope)
- Can be extended to 14 m (TDK 10)
• 4-digit display, illuminated
• Language: English
• Splash-proof/shock-proof
Taps/splitters
• Ambient conditions:
- Ambient temperature: -20 bis +50 °C
- Suitable for outdoor application
- Protection category: IP 54
• Control signal: serial, RS 232
• Connection: Sub D 9-pin
• Accessories (not included in the delivery scope):
TDK 10 - Order no. 26210054:
Connection cable 14 m
TDK 12 - Order no. 26210076:
PC connection cable for HTE 10 (for software update)
EAC 90-1G 24510116
EAC 93-1G 24510115
EAC 94-1G 24510114
EBC 90-1G 24510113
Type EAC 90-1G EAC 93-1G EAC 94-1G EBC 90-1G
Order no. 24510116 24510115 24510114 24510113
Frequency range MHz 5-1000 5-1000 5-1000 5-1000
Through loss ¹) 5-610 MHz dB < 1.3 < 2.1 < 0.5 < 3.6
Through loss ¹) 610-862 MHz dB < 1.3 < 2.3 < 0.6 < 3.8
Through loss ¹) 862-1000 MHz dB < 1.5 < 2.6 < 0.9 < 3.9
Tap loss dB 10 6 20
Equivalent to
through loss
Decoupling 5-65 MHz dB > 28 > 23 > 38 > 28
Decoupling from 65-610 MHz dB > 26 > 23 > 33 > 22
Decoupling from 610-862 MHz dB > 24 > 23 > 30 > 20
Decoupling from 862-1000 MHz dB > 22 > 20 > 28 > 18
12
¹ ) The through loss is the signal loss between the unit's output and output 1 when the insert is inserted in the output section insertion point or between
the unit's input and the tap output when the insert is inserted in the unit‘s input section (input confi guration section)

Elektronische Einstellungen
mit Handbedienteil
HTE 10, 25010005
NTS AT A GLANCE
Optical Compact Receiver
Details
Possibilities
Optical Interfaces
Technical Data
Components
De-emphasis equalisers/attenuator
ERD 810 24510110
ERD 813 24510117
ERD 814 24510120
ERZ 940 24510059
• Available types:
- ERD 810: De-emphasis equaliser, switchable, 862 MHz
- ERD 813: Cable-equivalent de-emphasis 6 dB 1)
- ERD 814: 6 dB attenuation
- ERZ 940: Cable-analogue 7 dB
Type ERZ 940 ERD 810 ERD 813 ERD 814
Order no. 24510059 24510110 24510117 24510120
Transmission range MHz 47-862 85-862 85-1000 85-1000
Nominal impedance Ohm 75 75 75 75
Attenuation (linear) dB - - 1 6
De-emphasis dB 7 ±1 3 (85-862 MHz, fixed) 7 -
Basic attenuation dB (at 47 MHz) 0.3 (at 85 MHz) 0.5 - -
KDG de-emphasis, 470-862 MHz,
switchable
dB - 0/4/8 - -
Cable equivalent de-emphasis 85-862 MHz,
switchable
dB - 3/6/9 - -
Return loss dB 20-3 - 20-1.5/octave 20-1.5/octave
¹ ) In reference to 85-862 MHz
C-line pre-emphasis equaliser
ERC 22 24510085
• Generates pre-emphasis
based on the C-line specifications
of Kabel Deutschland
• Application in the universal
input insert position
("Forward 1")
Equaliser, 630 MHz
ERZ 630 24510108
• Equaliser, 47-630 MHz
• Switchable in
2-dB steps
from 2-18 dB
(cable-equivalent)
Type ERC 22
Order no. 24510085
Transmission range MHz 50-862
Nominal impedance Ohm 75
Pre-emphasis
For C-lines
Basic loss (at 862 MHz) dB 1
Return loss dB 23-1/oct.
Type ERZ 630
Order no. 24510108
Transmission range MHz 47-630
Nominal impedance Ohm 75
Equalisation, adjustable in 2-dB steps dB 2-18
Basic loss (at 47/630 MHz) dB 0.5/1.5
13

Optical Compact Receiver
Details
Possibilities
Optical Interfaces
Technical Data
Components
ORA 9022-1G - COMPONE
Block diagram
ORA 9022-1G
Optical coupler fastener
ZOH 04 24810159
• For external optical connectors
• Optical patch cables OFC 90/SC may be required for connection
Optical couplers
OKU 01/SC 24810031
OKU 01/SC-E 24810099
OKU 01/E 24810100
• Optical couplers for universal application
• Available types:
- OKU 01/SC: SC/APC both ends
- OKU 01/SC-E: Optical connection adapter SC/APC to E-2000
- OKU 01/E: E-2000 both ends
Optical patch cables
OFC 90/SC 24810101
OFC 90/SC-E 24810102
• Optical patch cables for universal application
• Available types:
- OFC 90/SC: Both ends SC/APC 8°
- OFC 90/SC-E: One plug SC/APC 8°,
one plug E-2000 8°
Type OFC 90/SC OFC 90/SC-E
Order no. 24810101 24810102
Length cm 90 90
Patch cable diameter mm 0.9 0.9
14

Elektronische Einstellungen
mit Handbedienteil
HTE 10, 25010005
NTS AT A GLANCE
Optical Compact Receiver
Details
Possibilities
Optical Interfaces
Technical Data
Components
Optical splitter, mini-tube design
BOVR 02-SC 24810097
• Optical splitter for universal application
• Low insertion loss
• Optimised for 1310 and 1550 nm wave lengths
• High reliability
• Optical connections: - 900 μm fibres
- SC/APC connector
Type
BOVR 02-SC
Order no. 24810097
Optical wave length nm 1310 ± 40 and 1460 ... 1625
Splitter type 1 : 2
Splitting ratio % 50/50
Insertion loss ¹) dB 3.6
Optical isolation, outputs dB 50
Dimensions (length x diameter) mm 66 x 3.5
¹) Without connectors
Optical multiplexer/demultiplexer, mini-tube design
BWMR 1310/1550 24810098
• Optical multiplexer/demultiplexer:
- Wave lengths: 1310/1550 nm
- Application: e.g. multiplexing/demultiplexing
forward path/return path
• High reliabilty
• High isolation
• Low insertion loss
• Optical connections:
- 900 μm fibres
- SC/APC connectors
Type BWMR 1310/1550
Order no. 24810098
Wave length, Pass Channel nm 1310 ± 40
Wave length, Reflect Channel nm 1550 ± 50
Insertion loss Pass Channel ¹) dB 0.7
Insertion loss Reflect Channel ¹) dB 0.45
Directivity Pass/Reflect Channel (forward path/return path) dB 50
Optical return loss dB 45
Max. optical power mW 500
Dimensions (length x diameter) mm 39 x 5.5
¹ ) Without connectors
15

Optical Compact Receivers
Details
Technical Data
Components
General Information
ORA 920/921 – OPTICAL C
Modular fibre node
GaAs-MMIC technology
Innovative operational concept:
- Settings made using slide switches
- Device settings can be reproduced exactly
- Economisation of insert cards and
attenuation pads
One or two outputs can be configured
Extremely low-noise receiver
(best device in its class)
The optical compact receivers ORA 920/921
provide the largest possible range of functions
in a very compact housing. Like the amplifiers in
the VGF 939/ VOS 95x family, all essential
settings are made using slide switches. On the
other hand, they profit from the optical receiver
and transmitter modules for the ORA 9022-1G.
As low-cost optical compact receivers, they are
used particularly in networks with a wide-ranging
optical fibre structure or in smaller optical
distribution networks.
DC light-controlled AGC
Optical DFB/CWDM return path transmitter
modules can be plugged in (option)
Integrated diplex filter 65/85 MHz
Separate broadband input up to 200 MHz
in the return path
Monitorable with HMS or DOCSIS
transponder (option)
Highly efficient switched-mode power supply
Die-cast aluminium housing
Ingress Control Switch
Optical connectors:
SC/APC or E-2000
16

OMPACT RECEIVER
Optical Compact Receivers
Details
Technical Data
Components
General Information
Due to the modular layout, the slide switch
technology and the well thought-out details,
setup and service are quick and straightforward.
Here the ORA 920/921 can provide functions
that are not a matter of course in this device
class.
Above all, the return path up to 200 MHz, up to
7 A remote feed current per output, direct feed
on the device, the monitoring feature via HMS
transponder, the switchable 15 MHz high-pass
filter and many other advantages are worthy of
mention.
As standard, a DC light-controlled AGC automatically
ensures the output level remains constant.
Deviations or fluctuations in the optical input level
are compensated.
Various DFB types in 1310 nm and in CWDM
technology are available as return path transmitters.
Thanks to the high output power of up to
+6 dBm, very large distances can be covered.
As a result it is possible to design optical fibre
networks without intermediate hubs, saving fibre.
The adjustment of the Optical Modulation Index
(OMI) for the return path transmitter is solved
particularly cleverly. The required OMI is set
electronically using a rotary switch.
However, this setting can also be
changed using remote maintenance
via the HMS transponder.
Light emitting diodes indicate
which setting currently has priority.
On the ORA 920/921 the optical interfaces
are located on the exterior of the device
and are therefore easy to access. Beside
them is the separate broadband return path input
up to 200 MHz.
The remote feed voltage for the operation of the
ORA 920 and downstream amplifiers can be
fed directly into the power supply unit. Each RF
output with its dedicated remote feeder reactance
coil can be loaded up to 7 A (10 A in total).
17

Optical Compact Receivers
Details
Technical Data
Components
General Information
ORA 920/921 –
Modularity
Compact, high performance plug-in modules
ensure reliable operation. The modules can be
upgraded or replaced easily.
Slide switches
All important settings are made using
slide switches practically without signal interruption.
The feature makes it possible to
largely avoid plug-in cards or attenuation
pads.
External optical interfaces
The optical connectors are fitted to the
housing where they are easy to access.
Separate broadband return path input
up to 200 MHz
The ORA 920/921 is already designed for
extreme broadband return path applications
up to 200 MHz. Signals are handled
separately.
Two configurable outputs
Two outputs can be configured on the
output splitter field using taps or a splitter.
18

DETAILS
Optical Compact Receivers
Details
Technical Data
Components
General Information
Universal insert position
If, in special cases, it should be necessary to
use a system equaliser – the ORA 920/921 is
prepared.
Integrated high-pass 15 MHz
For the suppression of ingress interference,
a 15 MHz high-pass can be enabled. This
feature simplifies use in the vicinity of subscribers.
The return path can also be completely
switched off manually. An electronic
Ingress Control Switch (ICS) is also available
Optical Modulation Index (OMI)
adjustment
The OMI can be adjusted either using an
electronic rotary switch or using remote
maintenance via the HMS transponder. The
method used for adjustment is displayed
by LED.
Generously dimensioned remote feeder
reactance coils
Each of the two outputs is equipped with a
remote feeder reactance coil up to 7 A.
Direct feed
The remote feed voltage, also for downstream
amplifiers, can be fed directly into the device.
Up to 10 A can be fed.
19

Optical Compact Receivers
Details
Technical Data
Components
General Information
ORA 920/921 – TEC
Type (Order no.)
ORA 920E (24710024)
ORA 920SC (24710025)
ORA 921E (24710031)
ORA 921SC (24710032)
Operation with receiver module ORD 20 ORD 21
Forward path
Frequency range MHz 85-862
Photo-diode sensitivity at 1550 nm A/W 0.9
Optical wave length nm 1271-1611
Optical return loss dB > 45
Optical input level range, 1310 nm, nominal dBm -7 ... -1 -7 ... +1
Optical input level range, 1550 nm, nominal dBm -8 ... -2 -8 ... 0
Max. optical input power (permanent) dBm +3
Nominal optical modulation index (OMI) % 4.1
Impedance Ω 75
Number of outputs 1 or 2
Output level (1 output at 4.1 % OMI) dBμV 110
Frequency response dB ± 1.0
Equivalent noise current density, input pA/√Hz 4.5 4
Max. output level acc. to CENELEC 1)
CSO > 60 dB dB 110
CTB > 60 dB dB 110
Return loss (40 MHz) dB 18 -1.5/oct.
Return path (general): see also product information OSR 900x
Frequency range (through diplex filter/broadband input) MHz 5-65/5-200
Impedance Ω 75
Return loss (5-65 MHz) dB 20
Frequency response dB ± 1.0
Input level for OMI 8 % (per channel) dBμV 65
Attenuation ICS dB 0/6/40
Power supply
Perm. input voltage range ORA 921E and ORA 921SC V AC 230
Perm. input voltage range ORA 920E and ORA 920SC V AC 32 ... 72
Max. remote feed current on each output 2) A 7
Max. remote feed current/feed-in (power passing) 2) A 10
Power consumption incl. an ORD 2x, 1/2 active outputs W 14
Power consumption fully-equipped, 1/2 active outputs W 20
General data
RF outputs/broadband input (external)
PG 11/F-type connector (female)
Dimensions (W x H x D) mm 218 x 176 x 86
Weight kg 2.3
Housing material
Aluminium die-cast
Protection class acc. to DIN EN 60529 IP 43
Temperature range °C -20 ... +55
20
1) Measurement conditions: Output level 110 dBμV, 4 dB slope
2) Only ORA 920E and ORA 920SC

HNICAL DATA
Optical Compact Receivers
Details
Technical Data
Components
General Information
Block diagram
Note:
If the ORD 20 is used in the ORA 920/921, the OFC 90/SC optical patch cable is required.
+
ORD 20
OFC 90/SC
21

Optical Compact Receivers
Details
Technical Data
Components
General Information
ORA 920/921 – THE COMPONENTS AT A GLANCE
Optical compact receivers
ORA 920E
Connector E-2000 24710024
ORA 921E
Connector E-2000 24710031
ORA 920SC
Connector SC/APC 24710025
ORA 921SC
Connector SC/APC 24710032
Optical receiver modules
ORD 20 1) 24810040
ORD 21 24810092
For details, see page 20
1) Optical patch cable OFC 90/SC additionally required
Monitoring transponders
TVM 850/H 26210077
TVM 1000 26210086
For details, see page 11
Optical return path transmitters
OSR 9003, +3 dBm, 1310 nm 24610201
OSR 9006-C11, + 6 dBm, 1471 nm 24610203
OSR 9006-C12, + 6 dBm, 1491 nm 24610204
OSR 9006-C13, + 6 dBm, 1511 nm 24610205
OSR 9006-C14, + 6 dBm, 1531 nm 24610206
OSR 9006-C15, + 6 dBm, 1551 nm 24610207
OSR 9006-C16, + 6 dBm, 1571 nm 24610208
OSR 9006-C17, + 6 dBm, 1591 nm 24610209
OSR 9006-C18, + 6 dBm, 1611 nm 24610210
For details, see page 10
Equalisers
ERZ 940, De-emphasis 7 dB, 862 MHz 24510108
ERS 800, System equaliser 862 MHz 24510109
ERD 810, De-emphasis 3 dB 24510110
ERZ 630, Equaliser, 85-620 MHz 24510108
PG 11 connectors
EMP 26 275281
EMP 28 275283
EMP 29 275284
EMP 34 275289
EMP 35 275300
EMU 29 273243
EMP 34
• Plugs
EMP 26: Plug for LCD 90/95/99/110/111 cables
EMP 28: Plug for LCM 14/17 cables
• Cable fittings:
EMP 29: Cable fitting for LCM 33
EMP 26
• Adapters:
EMP 34: PG 11 to IEC socket
with M14 external thread
EMP 35: PG 11 to F-type socket (female)
EMU 29: PG 11 adapter ring to 5/8"
F-type cable fittings
EMK 104,
F-type cable fitting for LCM 33 273195
EMK 105,
F-type cable fitting for LCM 50 273196
EMK 106,
F-type cable fitting for LCM 96 273197
Taps/splitters
EBC 90-1G 24510113
EAC 90-1G 24510116
EAC 93-1G 24510115
EAC 94-1G 24510114
EMK 106
22

GENERAL INFORMATION
Optical Compact Receivers
Details
Technical Data
Components
General Information
Monitoring via DOCSIS/EuroDOCSIS
Functions
Both ORA 9022/ORA 9022-1G and ORA 920/921
can be conveniently monitored via DOCSIS and
EuroDOCSIS 2.0. For this purpose, Kathrein has
developed the DOCSIS/EuroDOCSIS transponder
TVM 1000.
Monitoring without a conventional HMS system
is thus possible.
The DOCSIS/EuroDOCSIS transponder TVM 1000
works just like a normal cable modem and can
also be integrated into cable modem management
systems through SNMP. This allows all
parameters to be displayed, switched or monitored,
just as they are in HMS-compatible monitoring
systems. Some of these parameters are
(depending on the device):
- Operational voltage
- Internal temperature
- Optical input level
- Optical output level
- Operation of ICS
- Switch-over to another receiver module
- Switch-over of return path matrix
- Gain of return path transmitter
(Optical Modulation Index)
- Fibre recognition on/off and much more
Advantages
In addition, (Euro)DOCSIS-specific features can
also be used for monitoring purposes, providing
the following advantages:
- S/N measurement through carrier
- Analysis of return loss
- Quick response to polling queries
- Packet error analysis
- Encoded data transmission
- Display of complete cable modem
status information
- Local access via web browser
- Ethernet connection from the transponder
to the headend for service purposes
- Integrated management system for all
cable modems and HFC networks
- No own HMS monitoring system
required
The optical compact
receivers ORA 9022/
ORA 9022-1G and
ORA 920/921 can of
course be integrated
into any HMS-compatible
system.
The HMS transponder
TVM 850/H fulfils this
task.
23

The products described must only be installed by
qualified specialists. Please consult the provided
instruction manuals for safety instructions that are
to be considered during use.
We are always pleased to advise you:
99811500/1/0410/JH/Pf Technical data subject to modification. Technical data represent typical values.
Internet: http://www.kathrein.de · catv@kathrein.de
KATHREIN-Werke KG ·Phone +49 8031 184-0 · Fax +49 8031 184-385
Anton-Kathrein-Str. 1 - 3 · P.O. Box 10 04 44 · 83004 Rosenheim/GERMANY
Antennen · Electronic