B-22
Cisco IE 3000 Switch Hardware Installation Guide
Appendix B Installation In a Hazardous Environment
Verifying Switch Operation
Step 5
Insert the exposed part of the positive wire into the connection labeled V and the exposed part of the
return wire into the connection labeled RT. See
. Make sure that you cannot see any wire
lead. Only wire
with
insulation
should extend from the connector.
Warning
An exposed wire lead from a DC-input power source can conduct harmful levels of electricity. Be sure
that no exposed portion of the DC-input power source wire extends from the power and relay
connector. Statement 122
Figure B-14
Inserting Wires in the Power and Relay Connector
Step 6
Use a ratcheting torque flathead screwdriver to torque the power and relay connector captive screws
(above the installed wire leads) to 2.2 in-lb (0.25 Nm). See
Caution
Do not over-torque the power and relay connector captive screws. The torque should not exceed 2.2 in-lb
(0.25 Nm).
1
Power source positive connection
2
Power source return connection
20202
8
RT A
V
A
1
2
