7-10
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
Figure 7-8
Handling an AC-Input Power Supply
Warning
Keep your hands and fingers out of the power supply bays. High current is present on the power
backplane when the system is operating.
Step 6
Pull the supply out of the bay and put it aside.
Step 7
If the power supply bay is to remain empty, install a blank power supply filler plate over the opening;
secure it with the mounting screws.
Caution
Always install a filler plate over an empty power supply bay, not only to protect the inner chassis and
connectors from dust or other contamination, but to prevent possible contact with the high current levels
of those connectors when the chassis is powered on.
Installing an AC-Input Power Supply
Warning
Before installing a Cisco Catalyst 5500 AC-input power supply, read the warning in the
“Removing an
AC-Input Power Supply”
section.
Follow these steps to install an AC-input power supply:
Step 1
Turn off the power switch on the power supply you are installing (see
Figure 7-9
).
Caution
Failure to turn off the power supply could result in equipment damage.
Caution
Use both hands to install and remove power supplies. The Cisco Catalyst 5500 power supply weighs 22
lb. (9.9 kg).
Warning
Keep your hands and fingers out of the power supply bays. High current is present on the power
backplane when the system is operating.
Step 2
Grasp the power supply handle with one hand and place your other hand underneath to support the
bottom of the supply, as shown in
Figure 7-11
.
H2751
POWER
100-127/200-240 V~
8.0/4.0 A
60/50 Hz
