Cisco Prisma II EDR Installation Manual page 28

Chapter 1 Module Introduction
Note: The optical fiber must be plugged into the top receiver on the OPM.
Dual 2:1 Mode
Referring to the diagram below, two EDR transmitters are connected to one receiver.
Each EDR transmitter digitizes and combines two RF signals (RF 1 + RF 2) into one
serial stream and transmits it over optical fiber to the receiver. At the receiver, the
serial streams from the two separate transmitters are deserialized and converted
back to their two analog RF components. Because the receiver only has two RF ports,
the combined signals (RF 1 + RF 2) for each transmitter are sent to the two RF
connectors on the back of the module.
The EDR Receiver module is available in the High Density (HD) form factor. The
receiver OPMs are available in Standard Range (SR) and Extended Range (XR)
configurations. Both configurations feature a dual LC/PC optical input connector
that feeds two independent reverse optical receivers, each with its own RF output
port.
For additional details on the EDR Receiver module, see the Cisco Prisma II EDR
Receiver Installation Guide, part number OL-29646-01.
8 OL-32414-01