Cisco 1310 nm, 1550 nm, and CWDM Analog Rev TXs for Model 6940 6944 GM Node 数据表

 

 

 

GainMaker & 694x 

Reverse TX 

 

GS7000 

Reverse TX 

 
 

The Models 6940, 6942, 6944, GainMaker

®

 and GS7000 Nodes may be equipped with 

1310 nm, Coarse Wave Division Multiplexing (CWDM), or Dense Wave Division 
Multiplexing (DWDM) analog reverse optical transmitters to facilitate reverse 
communications from node to headend or hub site.  These reverse optical transmitters 
are now thermally compensated for improved performance over temperature. 
 
The CWDM reverse optical transmitter is offered in a choice of 8 wavelengths from 1470 
to 1610 nm.  Up to 8 CWDM reverse optical transmitters can share a common return 
fiber when used with accompanying multiplexing and demultiplexing passive optics. 
 
The DWDM reverse optical transmitter is offered in a choice of 40 wavelengths from 
1530.33 to 1560.61 nm.  Multiple DWDM reverse optical transmitters can share a 
common return fiber when used with accompanying multiplexing and demultiplexing 
passive optics. 
 
All of these reverse optical transmitters incorporate distributed feedback (DFB) lasers, 
which are best suited for high-capacity reverse traffic.  They are available in both 
standard and high gain versions, in order to allow flexibility in reverse path design.  The 
high gain versions are typically used in the Model 6944, 6942, and GS7000 segmentable 
nodes.  The standard gain versions are typically used in the Model 6940 and GainMaker 
nodes.  All optical transmitters used in the GS7000 Node have a new high profile module 
cover that includes both a self-contained fiber pigtail storage area and an integrated pull 
ring for easier module installation and removal. 
 
The reverse optical transmitters specified in this data sheet include both a Power On 
LED and an Optical Power Alert LED, enabling quick visual confirmation of operational 
status.  A DC test point that is scaled to the optical output power is also included. 
 
Optionally, to help ensure maximum reliability and quick fault resolution, the reverse 
transmitters can be remotely monitored using the Scientific-Atlanta ROSA

®

/Transmission 

Network Control System (TNCS). 
 
 

•  Compact modular design for simple installation and removal 

•  Thermally Compensated for improved performance over temperature 

•  Power On and Optical Power Alert LED indicators 

•  DC test point scaled to optical output power 

•  Plug-in input attenuator allows easy adjustment of RF drive level  

•  Provisioned with network monitoring capability (TNCS system required) 
 
 
 
 
 

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