Cisco Systems AS5350XM manual Required Tools and Equipment, Removing the Chassis Cover

Appendix B Replacing the Power Supply

Required Tools and Equipment

Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. Statement 43

Warning Only trained and qualified personnel should be allowed to install or replace this equipment. Statement 49

Warning This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that

a UL Listed and Certified fuse or circuit breaker no larger than 60 VDC, 15 A is used on all current-carrying conductors. Statement 96

Caution Before opening the chassis, ensure that you have discharged all static electricity from your body and that the chassis is powered down.

Required Tools and Equipment

You need the following tools and equipment:

•Medium-size Phillips screwdriver

•Small or medium flat-blade screwdriver

•ESD-preventive wrist strap

•Tie-wraps (optional)

•Antistatic bag (optional)

Removing the Chassis Cover

You must open the universal gateway chassis to gain access to its interior components.

To open the chassis cover, follow this procedure:

Step 1 Turn the power switch on the universal gateway off and disconnect site power.

Note Note that the power switch is part of the power supply.

Step 2 If you are using a DC-powered unit, refer to Figure B-1or Figure B-2and complete the Step a through Step d.

Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit.

Statement 1003

Cisco AS5350XM Universal Gateway Chassis Installation Guide

B-2 OL-6417-02