Appendix B
Enhanced Digital Return Multiplexing Applications
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.
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.
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