Cisco Model GS7000 4-Port Node 1 GHz with 42 54 Split Installation Guide
Chapter 2 Theory of Operation
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Power Distribution
Introduction
The GS7000 Node is powered by one or two power supplies.
Power Distribution
GS7000 Node power distribution functions are described below.
Stage Description
1
45 to 90 V AC is applied to one or two power supply modules in the
GS7000 Node.
GS7000 Node.
2
The power supply module(s) convert(s) the AC input to +24.5, +8.5, -6.0,
and +5.5 V DC.
and +5.5 V DC.
3
The +24.5, +8.5, -6.0, and +5.5 V DC is routed to GS7000 Node internal
modules.
modules.
4
If two power supplies are installed and both are active, the load is shared
equally between them.
equally between them.
5
An AC segmentable shunt is available to separate the AC connection to
ports 1-3 from that of ports 4-6. This allows the node to be configured
where one power supply is powered from ports 1-3 and a second power
supply is powered from ports 4-6.
ports 1-3 from that of ports 4-6. This allows the node to be configured
where one power supply is powered from ports 1-3 and a second power
supply is powered from ports 4-6.