Cisco Systems Cisco 12006, Cisco 12406 - page 276

Chapter 6 Maintaining the Router
Removing and Replacing a DC PEM
6-36
Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
OL-11497-03
Step 3 Check the power supply status indicators:
• Output OK (green)—Indicates that the PEM is operating normally, and the
source DC output voltage is within the nominal operating range of –48 to
–60 VDC. This indicator should light 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.
• Input OK (green)—Indicates that the power supply is operating normally, and
the source DC input voltage is within the nominal operating range of
-40.5VDC to -75VDC. This indicator should light when the power supply
switch is set to the On (1) position.
– If the Input 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 the PDU.
• Miswire (amber)—Indicates the input wiring is incorrect at the PDU power
connection block.
Correct wiring to the DC power connector block (see Figure 6-25).