Installation guide

5-16
Cisco 6260 Hardware Installation Guide
OL-2365-01
Chapter 5 Troubleshooting
FRU-Specific Problems
5.5.6 PEM Problems
If you need to remove or replace a PEM as part of the troubleshooting steps below, see Chapter 6,
“Upgrading and Maintaining the Cisco 6260 System,” for instructions.
Table 5-8 PEM Problems
Symptom Steps to Take
Input OK LED on PEM fails to
go on.
1. Make sure the circuit breaker on the PEM is turned to the ON (1) position.
2. Make sure the PEM is properly seated in the chassis and screwed in place.
3. Make sure the power leads are properly connected to power connectors on the PEM.
(If the connections are loose or their polarity is reversed on the DC PEM, the chassis
does not receive power.)
4. Check the power cable for breaks, cracked insulation, loose lugs, and signs of wear.
Replace the power cable if it is not in good condition.
5. Check the power source.
6. Turn the circuit breaker on the PEM to the OFF (0) position, and move it to the other
PEM slot. If the PEM still fails, replace it.
Out Fail LED on PEM goes on.
1. Make sure the PEM is fully inserted into its slot and firmly screwed in place.
2. Replace the PEM.
3. If the problem persists, there may be a fault in your backplane. Contact the
Cisco TAC.
Circuit breaker on PEM trips. A tripped circuit breaker indicates a serious overcurrent situation. The probable cause is
a faulty backplane, a faulty power connector on the backplane, or a faulty PEM. Contact
the Cisco TAC for assistance.
PEM has problems in one
slot but operates normally in
the other.
There might be a fault in your backplane. Contact the Cisco TAC.