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Warning

power switch, line voltages are present within the power supply even when the power switch is OFF

and the power cord is connected. For systems without a power switch, line voltages are present

within the power supply when the power cord is connected. (To see translated versions of this

warning, refer to the Regulatory Compliance and Safety Information document that accompanied the

router.)

Step 4

Step 5

Step 6

Step 7

Step 8

Figure 1

Removing AC and DC Power Supplies

This section describes how to remove an AC or DC power supply. Although an AC power supply is

shown in the illustrations that follow, the procedure is the same for removing both AC and DC power

supplies.

Take the following steps to remove a power supply:

Step 1

Do not touch the power supply when the power cord is connected. For systems with a

Turn the unit upside down so that the top of the chassis is resting on a ﬂat surface, and the

front of the chassis is facing toward you. (See Figure 1, Part A.)

Remove the single screw located on the bottom of the chassis (on the side closest to you).

Note that the chassis is comprised of two sections: top and bottom.

If required, insert a medium-size ﬂat-blade screwdriver into the slots shown in Figure 1,

Part A, and rotate the blade so that the top and bottom sections separate slightly.

Holding the chassis with both hands, position it as shown in Figure 1, Part B.

Pull the top section away from the bottom section. (See Figure 1, Part B.) The ﬁt is very

snug, so it may be necessary to pry the chassis sections apart at one end and then the other

until they separate.

Chassis Cover Removal

Flat-blade screwdriver

Slot

Screw

Rear

Remove the screw located between the power switch and power connector.

(See Figure 2.) This screw secures the power supply to the chassis.

Installing Cisco AC and DC Power Supplies in Cisco 2500 Series Routers

Slot

Top section

Bottom section

Front

Left end

toward you

Removing AC and DC Power Supplies