Cisco 4000 Series Replacement Manual - Page 7

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Before opening the chassis, disconnect the telephone-network cables to avoid contact

Warning

with telephone-network voltages.

Loosen the nonremovable chassis release screw on the rear panel of the chassis. (See

Step 6

Figure 3.)

Pull on the handle located on the upper right corner of the chassis to slide the component

Step 7

tray out of the chassis shell until the safety latch catches. (See Figure 3.)

Figure 3

Component Tray Removal for Chassis with a Safety Latch

Chassis shell

Rear of chassis

Before releasing the safety latch, support the component tray from underneath, either on

Warning

your work surface or with your hands, to prevent injury.

Step 8

Support the component tray with one hand, push down on the safety latch tab, and pull

the component tray out completely.

Set the component tray on your work surface.

Step 9

Proceed with the section "Removing AC and DC Power Supplies."

Safety latch tab

Chassis release

screw

AUX

CONSOLE

Hand supporting

component tray

Accessing the Power Supply

INPUT 100-240VAC

50/60HZ 3.0-1.5 AMPS

Handle

Replacing the Cisco 4000 Series Power Supply