Removing an ac-input power supply – Cisco 5500 User Manual
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Cisco MGC Software Release 7 Operations, Maintenance, and Troubleshooting Guide
OL-0542-06
Chapter 7 Maintaining the Cisco Catalyst 5500 Multiswitch Router
Replacing Hardware Components
Removing an AC-Input Power Supply
Follow these steps to remove an AC-input power supply:
Note
In systems with redundant power supplies, the faulty supply can be replaced while the system is
operating.
Step 1
Turn off the power switch on the power supply you are removing (see
).
Warning
Do not touch the power supply when the power cord is connected. For systems with a power switch,
line voltages are present within the power supply even when the power switch is off and the power
cord is connected. For systems without a power switch, line voltages are present within the power
supply when the power cord is connected.
Caution
Failure to turn off the power supply could result in equipment damage.
Figure 7-7
AC-Input Power Supply Front Panels
Step 2
Disconnect the power cord from the power source.
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.
Step 3
Disconnect the power cord from the power supply being removed.
Step 4
Using a flat-blade screwdriver, loosen and remove the captive installation screws (see
Caution
Use both hands to install and remove power supplies.
Step 5
Grasp the power supply handle with one hand and place your other hand underneath to support the
bottom of the supply, as shown in
(Cisco Catalyst 5000 supply shown).
H11764
Power switch
Metal prongs
Power connection
AC
OK
FAN
OK
OUTPUT
FAIL
Captive screw
o