Cisco XM Universal Gateways Cisco AS5400XM Manual de usuario Pagina 68

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B-2
Cisco AS5400XM Universal Gateway Chassis Installation Guide
OL-6418-02
Appendix B Replacing the Power Supply
Required Tools and Equipment
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
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
Caution Before opening the chassis, ensure that you have discharged all static electricity from your body, and be
sure that the power is off.
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 chassis to gain access to its interior components.
To remove the chassis cover, follow these steps:
Step 1 Turn the power switch off and disconnect site power. (Note that the power switch is part of the power
supply.)
Note If you are using a DC-powered unit, see Figure B-1 and complete Step a through d.
Warning
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Statement 1003
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