Cisco Model GS7000 4-Port Node 1 GHz with 42 54 Split Installation Guide

 

OL-29643-02 

45 

 

The Optical Interface Board (OIB) provides all interconnections between the 
modules in the housing lid of the GS7000 Node. The modules in the housing lid 
include the optical receiver, optical transmitter, power supply, and status 
monitoring/local control modules. Each module in the lid plugs directly into the 
OIB through a connector header or row of sockets. Input attenuator pads are 
provided on the OIB for each optical receiver in the housing lid. Output attenuator 
pads are provided on the OIB for each optical transmitter in the housing lid. All RF 
and power cables running between the housing lid and base also plug into the OIB. 
Two Optical Interface Boards are available. The standard eight-position OIB allows 
one to four optical receivers, one to four optical transmitters, a status monitor 
(optional) or a local control module (optional), and one or two power supplies to be 
plugged into it. The optional six-position OIB allows one to four optical receivers, 
one to two optical transmitters or one cooled DFB transmitter, a 2X or 4X bdr 
module (optional), a status monitor (optional) or a local control module (optional), 
and one or two power supplies to be plugged into it. The six-position OIB is 
primarily used in digital return applications. 
The OIB is field replaceable. All optical modules, power supplies, RF cables, power 
cables, and OIB mounting screws must be removed in order to remove the OIB from 
the housing lid.