Cisco Systems XR 12410 manual OL-13832-01

Chapter 4 Troubleshooting the Installation

Troubleshooting the Power Subsystem

Step 2 Make sure the router is powered on and that all power cords are connected properly. Check that the:

•Power cords on the horizontal trough on the back of the chassis are secured in place with their retention clips.

•Power cords at the power source end are securely plugged into their own AC power outlet.

•Source AC circuit breaker is switched on.

Step 3 Check the power supply status LED indicators.

•Pwr OK (green)—Indicates that the power supply is operating normally, and both the source AC input voltage of 200 VAC to 240 VAC, and the –48 VDC output voltage to the backplane are within the nominal operating range. This indicator lights when the power switch is set to the on (1) position.

–If the Pwr OK indicator remains off after checking all of the power sources, replace the power supply with a spare.

–If the spare power supply does not work, replace its power distribution unit (PDU).

•Fault (yellow)—Indicates that the system has detected a fault within the power supply. This indicator remains off during normal operation.

If the indicator is on:

–Toggle the power switch off and then on. If the indicator remains on after several attempts to power it on, replace the power supply with a spare.

–If the spare power supply 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 power supply is in an overtemperature condition, causing a shut-down to occur.

Note If the temp indicator is on, the fault indicator is also on.

–Verify that the power supply fans are operating properly.

–Verify that the blower module is operating properly.

If the power supply fans and the blower module are operating properly, replace the existing power supply with a spare.

	Cisco XR 12410 Router Installation Guide
OL-13832-01		4-7