Cisco XR 12406 Installation Manual page 182

Removing and Replacing an AC Power Entry Module
Check the power supply status indicators:
Step 3
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Cisco XR 12406 Router Installation Guide
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AC Input (green)—Indicates that the power supply is operating normally, and
the source AC voltage is within the nominal operating range of 200 VAC to
240 VAC. This indicator lights when the power supply switch is set to the On
(1) position.
If the AC Input power indicator remains off after checking all of the
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power sources, replace the power supply with a spare.
If the spare power supply does not work, replace the PDU.
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DC Output (green)—Indicates that the power supply is operating normally,
and the output DC voltage is within the nominal operating range of –48 VDC
to –60 VDC. This indicator lights when the power switch is set to the On (1)
position.
If the indicator is off, toggle the power switch off and then on. If the indicator
remains off after several attempts to power it on, replace the power supply
with a spare.
Chapter 5 Maintaining the Router
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