Cisco GS7000 Installation And Operation Manual page 29

Module Description
Forward The 1x4 Redundant Forward Configuration Modules with forward RF
Configuration injection are similar to the 1x4 Redundant Forward Configuration
(cont'd) Modules, but are used with the Forward Local Injection (FLI) Module.
The FLI Module routes an RF signal from an external source to the
Forward Configuration Module which is then coupled with other
inputs from an optical receiver.
The 2x4 Forward Configuration Module is used when the 1.2 GHz
GS7000 Node is configured with two optical receivers, each feeding
two/three outputs of the amplifier module. In this configuration, the
node serving area is divided in half in the forward direction. Receiver
1 is routed to RF amplifier Ports 4 and 5/6, while Receiver 3 is routed
to RF amplifier Ports 1 and 2/3.
The 2x4 Redundant Forward Configuration Module is used when the
GS7000 Node is configured with four optical receivers with each pair
feeding two/three RF outputs of the amplifier module in a redundant
configuration. In this configuration, the node serving area is divided
in half, with redundancy, in the forward direction. Receivers 1
(primary) and 2 (redundant) are routed to RF amplifier Ports 4 and
5/6, while Receivers 3 (primary) and 4 (redundant) are routed to RF
amplifier Ports 1 and 2/3. The active receiver is selected with a status
monitor or local control monitor.
The 3x4 Forward Configuration Module is used when the 1.2 GHz
GS7000 Node is configured with three receivers each feeding
one/two/three/four outputs of the amplifier module. Two versions of
this module are available. In one version Receiver 1 is routed to RF
amplifier ports 4/5/6, Receiver 3 is routed to port 1, and Receiver 4 is
routed to ports 2/3. In the other version Receiver 1 is routed to RF
amplifier ports 5/6, Receiver 2 is routed to port 4, and Receiver 4 is
routed to ports 1/2/3. (Note that the 3x4 FCM can only be used with
the 4-way RF amplifier module.)
The 4x4 Forward Configuration Module is used when the 1.2 GHz
GS7000 Node is configured with four optical receivers with each
feeding separate RF outputs of the amplifier module. Receiver 1 is
routed to RF amplifier Ports 5/6. Receiver 2 is routed to RF amplifier
Port 4. Receiver 3 is routed to RF amplifier Port 1. Receiver 4 is routed
to RF amplifier Ports 2/3. (Note that the 4x4 FCM can only be used
with the 4-way RF amplifier module.)
Equipment Description
9