Universal Gateway Chassis Installation Guide

B-1
Cisco AS5350XM Universal Gateway Chassis Installation Guide
OL-6417-02
APPENDIX
B
Replacing the Power Supply
This appendix includes information on how to replace the power supply for the Cisco AS5350XM
universal gateway and contains the following sections:
• Safety Recommendations, page B-1
• Required Tools and Equipment, page B-2
• Removing the Chassis Cover, page B-2
• Removing the Old Power Supply, page B-6
• Installing the Power Supply, page B-9
• Replacing the Chassis Cover, page B-11
Overview
The power system consists of a single input AC or DC power supply or a dual input (redundant) AC or
DC power supply. For more information about the power system, see the “Power Supply” section on
page 1-4 and the “Power Supply Considerations” section on page 2-6.
Safety Recommendations
Note the following safety recommendations:
Warning Before opening the unit, disconnect the telephone-network cables to avoid contact with
telephone-network voltages. Statement 1041
Warning Do not work on the system or connect or disconnect cables during periods of lightning activity.
Statement 1001
Warning Before working on a chassis or working near power supplies, unplug the power cord on AC units;
disconnect the power at the circuit breaker on DC units. Statement 12