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Cisco ASR 9001 and Cisco ASR 9001-S Routers Hardware Installation Guide
Chapter 5 Replacing Cisco ASR 9001 Router Components
Removing and Replacing AC or DC Power System 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 (Figure 5-3):
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.