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3-49
Catalyst 2955 Hardware Installation Guide
78-14944-03
Chapter 3 Installation
Wiring the External Alarm Device Relays
Figure 3-23 Inserting Relay Wires into the Power and Relay Connector
Step 4 Use a ratcheting torque flathead screwdriver to torque the power and relay
connector captive screw (above the installed wire leads) to 4.5 in-lbs. (72 ozf-in.).
(See Figure 3-24 for details.)
1 Power supply A positive
connection
5 External device 2, relay wire B
connection
2 Power supply A return
connection
6 External device 1, relay wire B
connection
3 External device 1, relay wire A
connection
7 Power supply B return
connection
4 External device 2, relay wire A
connection
8 Power supply B positive
connection
104922
RT
A1
A2
VB
VA
A1
A2
RT
RT
A1
A2
VB
VA
A1
A2
RT
1
2
3
4
5
6
7
8