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Removing and Installing Power Supplies
Catalyst 8540 Chassis Installation Guide
4-10
Figure 4-6 DC-Input Power Supply Location
Removing the DC-Input Power Supply
To remove a DC-input power supply, follow these steps:
Step 1 Verify that the power is off to the DC circuit furnishing power to the power
supply you are removing.
Warning Before connecting or disconnecting ground or power wires to the
chassis, ensure that power is removed from the DC circuit. To ensure that all
power is OFF, locate the circuit breaker on the panel board that services the DC
circuit, switch the circuit breaker to the OFF position, and tape the switch handle
of the circuit breaker in the OFF position.
INP
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FAIL
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INP
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OK
OK
FAIL
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Power supply 0
Power supply 1