Cisco ASR 9910 매뉴얼 - 페이지 12

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Removing and Replacing Power System Components

Procedure

Step 1

Lift the fan tray (with two hands) and slide it halfway into the module bay.

Step 2

Slowly push the fan tray into the chassis until it mates with the backplane connector at the back of the module

bay.

Caution

Step 3

Tighten the captive screw(s) on the fan tray using the 6-inch long number 2 Phillips screwdriver to a torque

of 10 +/–1 in-lb to secure it to the chassis.

Step 4

Verify that the (green) OK status indicator on the front of the fan tray goes on. If the OK indicator does not

light, see

Removing and Replacing Power System Components

The Cisco ASR 9000 Series Routers support OIR of 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 quickly as

possible. Make sure you have the replacement power module ready before beginning the removal and installation

procedure.

Note

For the RSP/RP to communicate properly to a power module in a power tray, input power to at least one of

the power modules in the power tray should be present.

This section contains procedures on how to remove and install AC and DC power modules used in the Cisco

ASR 9000 Series Routers.

Caution

Do not turn off the switch on the power tray to remove individual power modules. Power modules support

OIR, so they can be removed and replaced with the power on and the system operating.

Changing Between Version 1, Version 2, Version 3, AC, and DC Power Modules

Note

The pwrmod_change command is not supported on the Cisco ASR 9912 Router and Cisco ASR 9922 Router.

Follow these steps when changing between version 1, version 2, version 3, AC, and DC power modules:

Replacing Cisco ASR 9000 Series Router Components

To prevent damage to the connectors, do not use excessive force when inserting the fan tray into

the chassis.

Troubleshooting the Cooling

Replacing Cisco ASR 9000 Series Router Components

Subsystem.