Other Electrical Problems - Cisco 10000 Series Troubleshooting Manual

Other Electrical Problems

Table 2-4
Table 2-4
Symptom
Power LED on PEM fails to light
Fault LED is lit yellow
Other Electrical Problems
If the electrical problem cannot be traced to a PEM, check the unit for:
•
•
Check the site for:
•
•
•
•
•
Cisco 10000 Series Router Troubleshooting Guide
2-4
lists the AC PEM fault indications and recommended actions.
AC PEM Fault Indications and Recommended Actions
Improper power cable connections to the Cisco 10000 series router
Improper installation of other field-replaceable units (FRUs)
Improperly grounded equipment, particularly equipment racks and power grounds
Fluctuating voltage, which can result from excessive power drains caused by other equipment (such
as air conditioning units)
Cable corrosion or defective power panels, circuit breakers or fuses, or cable connections
Undersized power cables or excessive power cable lengths
Excessive power demand on backup power systems or batteries when alternate power sources
are used
Chapter 2
Steps to Take
Make sure the power switch is in the on position.
1.
Make sure the PEM is properly seated and screwed
2.
into place.
Make sure the power cable is plugged in properly.
3.
Check the power source.
4.
Move the PEM to the other PEM slot. If the PEM
5.
still fails, replace it.
If the problem persists, contact the Cisco TAC.
6.
1. Make sure that the PEM is switched on.
2. Replace the PEM.
Call the Cisco TAC.
3.
PEM Faults and Blower Failures
OL-0439-02