Cisco Model GS7000 4-Port Node 1 GHz with 42 54 Split インストールガイド

 

 

27 

 

A local control module and a status monitor are available for the 1.2 GHz SHO 
GS7000 Node and Hub Node. A status monitor consists of a local control module 
with a transponder core module installed in the housing. The same housing is used 
for both units. The units perform the following function: 

 

Local Control Module - controls redundancy and forward segmentation, and 
configures the modules 

 

Status Monitor - adds status monitoring capability to the local control module 

 

DOCSIS capability 

 

 

 

The status monitor is HMS compliant and provides node monitoring and control 
capability at the cable plant's headend. The following node voltages and signals are 
monitored and their status reported to the headend by the status monitor. 

 

Receiver optical input level   

 

Transmitter optical output level   

 

AC power presence and peak voltage (for split AC powering cases, AC 
power from both sides of node housing is monitored) 

 

DC voltages from both primary and redundant power supplies 

Commands are sent from the headend to the status monitor. The status monitor 
communicates serially with the RF amplifier module to control the optional forward 
band redundancy switches on the forward configuration module, the reverse band 6 
dB (wink) attenuators on the reverse amplifier PWB, and the reverse band on/off 
switches on the reverse amplifier PWB.