Cisco 12410 Installation And Configuration Manual page 239

Chapter 5 Troubleshooting the Installation
Make sure the router is powered on and that all power cords are connected
Step 2
properly. Check that the:
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Check the power supply status LED indicators.
Step 3
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Note
Cisco 12010, Cisco 12410, and Cisco 12810 Router Installation and Configuration Guide
OL-11496-01
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.
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
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sources, replace the power supply with a spare.
If the spare power supply does not work, replace its power distribution
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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
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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.
If the temp indicator is on, the fault indicator is also on.
Verify that the power supply fans are operating properly.
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Verify that the blower module is operating properly.
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If the power supply fans and the blower module are operating properly,
replace the existing power supply with a spare.
Troubleshooting the Power Subsystem
5-7