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Replacing AC and DC Power Supplies

Take the following steps to replace a power supply in the chassis:

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Proceed with the section "Replacing the Component Tray."

Figure 9

Replacing the Component Tray

Take the following steps to replace the component tray in the chassis shell:

Step 1

Step 2

Proceed with the section "Replacing Connections to the Router."

12 Replacing the Cisco 4000 Series Power Supply

Place the power supply in the chassis with the power supply faceplate slightly forward of

the chassis rear panel. This will allow the hook in the chassis to engage the cutout in the

bottom of the power supply. (See Figure 9.)

Slide the power supply toward the rear of the chassis, engaging the hook in the chassis.

Replace the external rear mounting screws. (See Figure 7.)

Insert the large power connector into the receptacle on the motherboard. (See Figure 6.)

Join the small connectors used to power the cooling fans. (See Figure 5.)

Using tie-wraps, secure the power cables into a bundle that clears the edge of the chassis

and keeps the cables away from the fan. Be sure that the cables to the fans are routed

under the hook provided in the bottom of the chassis. (See Figure 5.)

Power Supply Installation

Rear of chassis

Reinsert the component tray into the shell, pushing on the back of the tray while pressing

on the chassis release screw (as shown in Figure 3 and Figure 4) with the thumb of your

right hand.

Retighten the chassis release screw.

Power supply

Slot

Hook