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Installing a DC Power Supply

Replace the air separator as shown in

Step 10

slip it into the chassis.

Figure 6-24 Replacing the Air Separator

Step 11

Replace the chassis cover as described in the

Rerouting the Fan Wiring

If the fan wiring in your router is not routed on top of the fans, you need to reroute the fan wiring. This

will make future power supply replacement easier.

To reroute the fan wiring, perform the following steps:

Pull the fan closest to the power supply away from the sheet metal tabs. (See

Step 1

Note

Cisco PIX Security Appliance Hardware Installation Guide

6-24

Front panel

To help with reconnecting the cables, write down which colored cable connects to which fan.

See

Table 6-4

for a list of the wire colors. There are three different lengths of two-wire ± 12 VDC

power cables. The two shortest cables go to the two fans that you will remove in

longer cables go to the two remaining fans you will remove in

remaining cable goes to the power connector on the backplane. These cables are color-coded.

Figure

6-24, holding all cables to the right of the separator as you

Air separator

"Replacing the Chassis Cover" section on page

Chapter 6

PIX 525

6-11.

Figure

6-25.)

Step

9. The two

Step 10

and

Step

11. The

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