Removing And Replacing Ac Or Dc Power System Components; Power Module Replacement Guidelines; Removing And Replacing An Ac Or Dc Power Module; Removing An Ac Or Dc Power Module - Cisco ASR 9001 Hardware Installation Manual

Replacing Cisco ASR 9001 Router Components

Removing and Replacing AC or DC Power System Components

This section contains removal and replacement procedures for the AC and DC power systems used in the
Cisco ASR 9001 Series Router.

Power Module Replacement Guidelines

The Cisco ASR 9001 Series Router support online insertion and removal (OIR) for power modules. If you
are replacing a redundant power module, you can remove and install the power module while the system
remains powered on without causing an electrical hazard or damage to the system. This feature enables you
to replace a power module while the system maintains all routing information and ensures session preservation.
However, to maintain operational redundancy and proper cooling, and to meet EMI compliance standards,
you must have at least one working power module installed. When you remove a failed power module with
the router in operation, perform the replacement as soon as possible. Make sure you have the replacement
power module ready before beginning the removal and installation procedure.

Removing and Replacing an AC or DC Power Module

This section contains the procedure to remove and replace an AC or DC power module from the chassis.
Note It is not necessary to turn off the switch on the unit to remove individual power modules. Power modules
support OIR, so they can be removed and replaced with the power on and the system operating.

Removing an AC or DC Power Module

To remove an AC or DC power module from the chassis:
Procedure
Step 1
Disconnect the power cabling from the power module before removing it from the chassis.
Step 2 Pull the keying lever towards the left side to unlock the module from the chassis.
Step 3 Slide the power module out of its bay while supporting it with your other hand.
Removing and Replacing AC or DC Power System Components
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