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Cisco XR 12416 and Cisco XR 12816 Router Chassis Installation Guide
OL-17440-01
Chapter 5 Maintaining the Router
Removing and Replacing a DC PEM
Use the following procedure to remove and replace a DC PEM.
Step 1
Power off the PEM by switching its circuit breaker off.
Step 2
Power off the DC circuit breaker assigned to that PEM.
Warning
To ensure that power remains off while you are performing this procedure, tape
the circuit breaker switch in the off (0) position.
Step 3
Loosen the captive screw on the ejector handle and pivot the lever down to eject
the PEM from its bay (
Figure 5-24
).
Step 4
Remove the PEM from the power shelf (
Figure 5-24
):
a.
Pull the PEM halfway out of its bay.
b.
Slide the PEM out of its bay while supporting it with your other hand.
Warning
The DC PEM weighs approximately 6 pounds (2.7 kg). Use two hands to remove
the power supply.
