Cisco Catalyst 2955 Hardware Installation Manual page 115

Chapter 3 Installation
Figure 3-25
alarm devices on a power and relay connector.
Figure 3-25
1
2
3
4
78-14944-03
shows the completed wiring for two power supplies and two external
Completed Connections for Two External Alarm Devices on the
Power and Relay Connector
1
2
Power supply A positive
connection
Power supply A return
connection
External device 1, relay wire A
connection
External device 2, relay wire A
connection
Wiring the External Alarm Device Relays
3
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
Catalyst 2955 Hardware Installation Guide
3-51