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4-25
Catalyst 2955 Hardware Installation Guide
78-14944-03
Chapter 4 Installation in a Hazardous Environment
Verifying Switch Operation
Figure 4-8 Torquing the Power and Relay Connector Captive Screws
Step 7
Connect the other end of the wire connected to VA to the positive pole on the DC
power source, and connect the other end of the wire connected to RT to the return
pole on the DC power source.
Note If you are connecting a second power supply, repeat Step 4 through Step 7
for the DC-input (VB) and return (RT) for power supply B.
1 Power and relay connector captive screws
97486
RT
A1
A2
VB
VA
A1
A2
RT
1