4-6
Catalyst 4500 E-Series Switches Installation Guide
OL-13972-02
Chapter 4 Removal and Replacement Procedures
Removing and Installing the AC-Input Power Supplies
Warning
Blank faceplates and cover panels serve three important functions: they prevent exposure to
hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI)
that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not
operate the system unless all cards, faceplates, front covers, and rear covers are in place.
Statement 1029
Installing an AC-Input Power Supply
Warning
The plug-socket combination must be accessible at all times, because it serves as the main
disconnecting device.
Statement 1019
To install an AC-input power supply, follow these steps:
Step 1
Remove the replacement power supply from its shipping packaging.
Step 2
Verify that the replacement power supply power switch is in the off (0) position.
Step 3
If necessary, remove the blank power supply cover from the empty power supply bay by removing the
two Phillips-head screws. Save the blank faceplate and the two screws for future use.
Caution
Use both hands to handle a power supply.
Step 4
Grasp the power supply handle with one hand and place your other hand underneath to support the
bottom of the power supply, as shown in
Figure 4-6
, and slide the power supply all the way into the
power supply bay. Make sure that the power supply is fully seated in the bay.
Step 5
Tighten the two captive installation screws (see
Figure 4-1
) on the front panel of the AC-input power
supply.
Step 6
Before you connect the power supply to a power source, verify that all site power and grounding
requirements have been met.
Step 7
Verify that you have the correct AC power cord for your location and power supply rating. See
Appendix A, “Power Supply Specifications,”
for a list of supported AC power cords for your particular
AC-input power supply.
Step 8
Plug the power cord appliance connector into the power supply AC-in receptacle (see
Figure 4-7
) and
tighten the screw on the power cord retention clip.
