Cisco CAtalyst 4500 Series Installation Manual page 129

Chapter 4 Removing and Replacing FRUs
Removing and Replacing the Power Supply
Figure 4-16 Handling a DC-Input Power Supply
If the bay is to remain empty, install a blank power supply filler plate over the
Step 8
opening and secure it with the mounting screws. This protects the inner chassis
from dust and prevents accidental contact with live voltage at the rear of the bay.
Blank faceplates and cover panels serve three important functions: they
Warning
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
Catalyst 4500 Series Switches Installation Guide
4-15
78-14409-08