Cisco 10000 Series Troubleshooting Manual page 22

DC PEM Faults
Figure 2-1
Figure 2-1
P O W E R
F A U LT
M IS W IR
E
Table 2-1
LED
Power (green)
Fault (yellow)
Miswire (yellow)
Table 2-2
Table 2-2
Fault Symptom
Green LED on PEM fails to
light
PEM experiences problems
in one slot but operates
normally in a different slot
Fault LED is lit yellow
Miswire LED is lit yellow
Cisco 10000 Series Router Troubleshooting Guide
2-2
illustrates the DC PEM and its indicators.
DC PEM
DC PEM LEDs
Description
PEM is powered on and is operational.
PEM is not operating correctly or the circuit breaker is in the off position.
Input power cables are wired incorrectly and should be reversed.
lists the DC PEM fault symptoms and corrective actions.
DC PEM Fault Symptoms and Corrective Action
Corrective Action
1. Make sure the circuit breaker on the PEM is turned on.
2. Make sure the PEM is properly seated and screwed in place.
Make sure power leads are properly connected to power connectors
3.
on the backplane. If connections are loose or their polarity is
reversed, chassis does not receive power.
4. Check the external power source.
5. Move the PEM to the other PEM slot. If the PEM still fails, replace it.
Ensure that the input power to both slots is correct.
1.
If the problem persists, contact the Cisco TAC.
2.
Check to see if the circuit breaker (on/off switch) has tripped. If it
1.
has, return the switch to the on position.
Replace PEM with a known good replacement.
2.
Contact the Cisco TAC.
3.
If the MISWIRE LED is on, the power cables are reversed. Power off the
PEM and the external power source and reconnect the wires correctly.
See the Cisco 10000 Series Router Hardware Installation Guide.
Chapter 2 PEM Faults and Blower Failures
Table 2-1 describes the indicators.
OL-0439-02