Cisco Model GS7000 4-Port Node 1 GHz with 65 86 Split Installation Guide

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Appendix C 
Enhanced Digital Return Multiplexing Applications 
210 
OL-29643-02 
EDR OPM and LCM 
About the OPM Module 
The reverse transmitter converts the RF test signal(s) to an optical signal using the 
installed Optical Module (OPM) and transmits it to the headend (or hub site) via 
fiber optic cable. At the headend, the reverse optical receiver also converts the 
optical signal back to an RF signal that is then routed out through the receiver's RF 
output using its installed OPM module. 
Item Description 
1 Dust 
Plug 
Bale Clasp (Open, Push upward to close) 
Transmit Bore (Not In Use for the Receiver) 
Receive Bore (Not In Use for the Transmitter) 
 
About the EDR LCM 
The EDR Local Control Module is required for in-band status monitoring the node 
signaling and data transmission.   
The packet cable is delivered with the EDR LCM module. Refer to the installation 
section in the following content for instructions on local status monitoring 
connection.  
Refer to the following sections for EDR OPM and LCM installation.