Power Distribution - Cisco GS7000 Installation And Operation Manual

Chapter 2 Theory of Operation

Power Distribution

Introduction
The 1.2 GHz SHO GS7000 Node is powered by one or two power supplies.
Power Distribution
1.2 GHz SHO GS7000 Node power distribution functions are described below.
Stage
1
2
3
4
5
16
Description
45 to 90 V AC is applied to one or two power supply modules in the 1.2 GHz
GS7000 Node.
The power supply module(s) convert(s) the AC input to +24.5, +8.5, -6.0, and
+5.5 V DC.
The +24.5, +8.5, -6.0, and +5.5 V DC lines are routed to 1.2 GHz GS7000 Node
internal modules.
If two power supplies are installed and both are active, the load is shared
equally between them.
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.