Chapter 5 Maintaining the Router
Removing and Replacing a DC Power Entry Module
Step 5 Slide the replacement PEM into the bay until it is seated to the backplane connector.
•Make sure the power switch is in the off (0) position.
Step 6 Tighten the three captive screws to secure the PEM to the chassis.
Electrical connections between the PEM the backplane connector are made automatically when the PEM is fully seated and the captive screws are tightened.
Step 7 Power on the circuit breaker assigned to the DC source power.
Step 8 Power on the PEM.
•The green Input OK and Output OK LEDs are on.
•The amber Output Fail LED is off.
See the “Troubleshooting the DC PEM Installation” section on page
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