Ac Pem Faults - Cisco 10000 Series Troubleshooting Manual

Chapter 2 PEM Faults and Blower Failures
Securely tighten the captive screws on your PEMs to prevent heightened levels of electromagnetic
Tip
interference.

AC PEM Faults

AC PEMs can be installed in two modes—redundant and nonredundant. It is recommended that you
install PEMs in a redundant configuration. A single PEM failure in a nonredundant configuration causes
a system failure.
To quickly check the status of your PEMs, use the show environment command.
Tip
AC PEM faults can occur for the following reasons:
•
•
Figure 2-2
Figure 2-2
P O W E R
F A U LT
Table 2-3
Table 2-3
LED
POWER
FAULT
OL-0439-02
PEM failure
Backplane interface failures or damage
shows the AC PEM and its LED indicators.
AC PEM
describes the AC PEM LEDs located at the bottom of the front panel.
AC PEM LEDs
Status
Steady green
Steady yellow
Condition
Power is available.
PEM has failed or is turned off.
Cisco 10000 Series Router Troubleshooting Guide
AC PEM Faults
2-3