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280-Watt AC-Input Power Supply Replacement Instructions 7

Removing and Replacing the AC-Input Power Supply

The following sections explain how to remove and replace the AC-input power supply in a

Cisco 7200 series router.

Note The procedures for removing and replacing an AC-input power supply in a single or dual

power supply conﬁguration are the same for the Cisco 7200 series routers and the Cisco 7206 and

Cisco 7206VXR when used as router shelves in the Cisco AS5800 Universal Access Server.

Therefore, the illustrations and procedures in the following sections apply to the Cisco 7200 series

and the Cisco AS5800 Universal Access Server router shelf, unless indicated otherwise.

Caution Do not mix AC- and DC- input power supplies in the same router.

Single Power Supply Conﬁguration

Removing and replacing the AC-input power supply in a single power supply conﬁguration involves

the following tasks:

1 Powering Down the Router and Disconnecting Input Power

2 Removing the AC-Input Power Supply

3 Replacing the AC-Input Power Supply and Connecting Power

4 Reconnecting Input Power and Powering Up the Router

These tasks are described in detail in the following subsections.

Powering Down the Router and Disconnecting Input Power

To power down Cisco 7200 series routers, complete the following steps:

Warning This unit might have more than one power cord. To reduce the risk of electric shock,

disconnect the two power cords before servicing the unit.

Note Before powering down the router, use the copy running-conﬁg startup-conﬁg command to

save the router’s running conﬁguration to nonvolatile memory.

Step 1 Facing the rear of the router, place the power switch on the power supply in the OFF (O)

position.

Step 2 Observe the following items:

• The green OK LED on the power supply turns off.

• The fans stop operating.

• The LEDs on the I/O controller turn off.

• The LEDs on the port adapters turn off.

This completes the procedure for powering down Cisco 7200 series routers.

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Cisco 7202 Manual de usuario Pagina 7