Chapter 7 Maintaining the Router
Removing and Replacing AC and DC Power Subsystem Components
7-44
Cisco 12010, Cisco 12410, and Cisco 12810 Router Installation and Configuration Guide
OL-11496-01
Troubleshooting a 2400 W DC PEM Installation
Use the following procedure to troubleshoot the DC PEM if it is not operating
properly after installation.
Step 1
Make sure the PEM is seated properly:
•
Eject and reseat the PEM. Make sure:
–
The captive screw on the ejector lever is tightened securely.
–
The power switch is set to the on (1) position.
Step 2
Make sure the router is powered on and that all power cords are connected
properly:
•
Power cords on the back panel are attached securely to their terminal studs.
•
Power cords are securely attached at the DC source end.
•
The source DC circuit breaker is switched on.
Step 3
Check the PEM status indicators:
•
Pwr OK (green)—Indicates that the PEM is operating normally, and the
source DC voltage is within the nominal operating range of –48 to –60 VDC.
This indicator lights when the power switch is set to the on (1) position.
•
Fault (yellow)—Indicates that the system detected a fault within the PEM.
This indicator remains off during normal operation.
–
Toggle the power switch off and then on. If the indicator remains on after
several attempts to power it on, replace the existing PEM with a spare.
–
If the spare PEM also fails, the problem could be a faulty power shelf
backplane connector. Power off the router and contact a Cisco service
representative for assistance.
•
Temp (yellow)—Indicates that the PEM is in an overtemperature condition
causing a shut-down to occur.
–
Verify that the power supply fan is operating properly.
–
Verify that the blower module is operating properly.
–
If the power supply fan and blower module are operating properly,
replace the existing PEM with a spare.
Summary of Contents for 12010 series
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