Cisco Cisco GS7000 4-Port 1GHZ Node Installation Guide
Forward Configuration Module
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1x2 and 1x4 Redundant Forward Configuration Modules Description
The 1x2 or 1x4 Redundant Forward Configuration Module is used when the GS7000
Node is configured with two optical receivers routed to all four outputs of the
amplifiers in a redundant configuration. Receiver 1 is the primary receiver and
Receiver 2 is the backup. The active receiver is selected with a digital signal from the
status monitor/local control module.
Note: The 1x2 Redundant FCM can only be used with the 2-way RF amplifier
module. The 1x4 Redundant FCM can only be used with the 4-way RF amplifier
module.
The following diagram shows how this module functions.
Node is configured with two optical receivers routed to all four outputs of the
amplifiers in a redundant configuration. Receiver 1 is the primary receiver and
Receiver 2 is the backup. The active receiver is selected with a digital signal from the
status monitor/local control module.
Note: The 1x2 Redundant FCM can only be used with the 2-way RF amplifier
module. The 1x4 Redundant FCM can only be used with the 4-way RF amplifier
module.
The following diagram shows how this module functions.
1x2 and 1x4 Redundant Forward Configuration Modules with Forward
RF Injection Description
The 1x2 and 1x4 Redundant Forward Configuration Modules with forward RF
injection are similar to the 1x2 and 1x4 Redundant Forward Configuration 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.
Note: The 1x2 Redundant FCM with forward RF injection can only be used with the
2-way RF amplifier module. The 1x4 Redundant FCM with forward RF injection can
only be used with the 4-way RF amplifier module.
The following diagram shows how this module functions.
injection are similar to the 1x2 and 1x4 Redundant Forward Configuration 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.
Note: The 1x2 Redundant FCM with forward RF injection can only be used with the
2-way RF amplifier module. The 1x4 Redundant FCM with forward RF injection can
only be used with the 4-way RF amplifier module.
The following diagram shows how this module functions.