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

Page of 282
 
Chapter 2    Theory of Operation 
 
 
 
42 
OL-29643-02 
 
 
4x2 Reverse Configuration Module with Auxiliary Reverse RF Injection 
Description 
The 4x2 Reverse Configuration Module with auxiliary reverse RF injection combines 
reverse inputs from Ports 1 and 2/3 and routes them to Transmitter 1; it also 
combines reverse inputs from Ports 4 and 5/6 and routes them to Transmitter 3. An 
RF signal from an external source can optionally be injected and coupled with 
reverse RF inputs from Ports 3/6 and routed to Transmitter 1. 
Note: This module can only be used with an 8-port optical interface board. (There is 
no transmitter 3 position with a 6-port optical interface board.) 
The following diagram shows how this module functions. 
 
 
 
4x2 Reverse Configuration Module with Auxiliary Reverse RF Injection 
Description 
The 4x2 Reverse Configuration Module with auxiliary reverse RF injection combines 
reverse inputs from Ports 1 and 2/3 and routes them to Transmitter 1; it also 
combines reverse inputs from Ports 4 and 5/6 and routes them to Transmitter 2. An 
RF signal from an external source can optionally be injected and coupled with the 
reverse RF inputs from Ports 3/6 and routed to Transmitter 1. 
Note: This module is typically used with a 6-port optical interface board since there 
is no transmitter 3 or 4 position. 
The following diagram shows how this module functions.