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Cisco 6400 Hardware Installation and Maintenance Guide
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Chapter 5 Maintaining the Cisco 6400
Replacing a DC Power Entry Module
Removing a DC Power Entry Module
If you remove a redundant DC PEM, the chassis continues to operate normally. If you plan to remove
the only operating PEM from a chassis, you must first power down the Cisco 6400 system. Refer to the
procedure in the “Powering Down the System” section on page 5-8.
To remove a PEM from the Cisco 6400 chassis:
Step 1 Ensure that the circuit breaker on the DC PEM you are removing is turned Off.
Step 2 Unscrew the retaining screws on the DC PEM faceplate.
Step 3 Grasp the DC PEM by the handle on the faceplate and pull it out of the chassis.
Caution Always install a filler panel over an empty PEM power bay to protect the connectors from
contamination and to ensure proper air flow.
Installing a DC Power Entry Module
Figure 5-34 shows a DC PEM unit being installed in the Cisco 6400 chassis. You can insert a PEM unit
into the Cisco 6400 without powering down the system.
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