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Cisco ASR 9001 and Cisco ASR 9001-S Routers Hardware Installation Guide
OL-26701-02
Chapter 5 Replacing Cisco ASR 9001 Router Components
Removing and Replacing AC or DC Power System Components
Power Module Replacement Guidelines
The Cisco ASR 9000 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 (more than one for a fully
configured system). 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.
Removing an AC or DC Power Module
To remove an AC or DC power module from the chassis (see Figure 5-2):
Step 1 Pull the keying lever towards left side to unlock the module from the chassis.
Step 2 Slide the power module out of its bay while supporting it with your other hand.