Cisco Catalyst 2955 Hardware Installation Manual page 160

Verifying Switch Operation
Figure 4-9
for a primary power supply and an optional secondary power supply.
Figure 4-9
1
2
3
4
Catalyst 2955 Hardware Installation Guide
4-26
shows the completed DC-input wiring on a power and relay connector
Completed DC Power Connections on the Power and Relay
Connector
1
2
3
Power supply A positive
connection
Power supply A return
connection
External device 1, relay wire A
connection
External device 2, relay wire A
connection
Chapter 4 Installation in a Hazardous Environment
4
5
6
7
8
5
External device 2, relay wire B
connection
6
External device 1, relay wire B
connection
7
Power supply B return
connection
8
Power supply B positive
connection
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