Cisco ASA 5585-X Maintenance Manual - Page 25

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Chapter 4

Maintenance and Upgrade Procedures

Follow these steps to disconnect the source DC to the DC-input power supply and remove the DC

power-supply module:

Set the power switch or circuit breaker to the off (0) position on the source DC circuit that feeds the

Step 1

power supply that you are installing.

As an added precaution, place the appropriate safety flag and lockout devices at the source power circuit

breaker, or place a piece of adhesive tape over the circuit breaker handle to prevent accidental power

restoration while you are working on the circuit.

Step 2

Verify that the power switch on the power supply you are removing is in the STANDBY ( ) position.

Remove the terminal block cover by simultaneously squeezing the left and right sides of the terminal

Step 3

block, and at the same time pull the cover off the terminal block; set the cover aside

Figure 4-21

Terminal block cover

Terminal block cover clip

Using a 5/16-inch nut-driver, loosen and remove the four nut and lock-washer pairs from the DC power

Step 4

lugs. Set the nuts and lock-washers aside

OL-22567-02

Removing the Terminal Block Cover

(Figure 4-22 on page

Cisco ASA 5585-X Adaptive Security Appliance Hardware Installation Guide

Removing and Installing the Power Supply Module

(Figure

Terminal block

4-26).

4-21).

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