Router Installation Guide

Chapter 5 Maintaining the Router
Removing and Replacing a DC PDU
5-28
Cisco XR 12404 Router Installation Guide
OL-13830-02
Step 1 If the Input OK and Output OK LEDs are off, or if the Output Fail LED is on,
check that the:
• PEM is firmly seated in the bay and the captive screws are tightened securely.
• DC power source circuit breakers are switched on.
• DC power cables are securely attached to the PDU terminal block.
• Power switch is set to the on (1) position.
Step 2 If the problem still exists after checking the items in Step 1, replace the PEM.
Step 3 If replacing the PEM does not correct the problem, contact a Cisco service
representative for assistance.
todd.book Page 28 Tuesday, July 24, 2007 3:54 PM