7-12
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
Step 2
Turn the power switch to the OFF (0) position on the power supply you are removing (see
Figure 7-9
).
Step 3
Remove the two screws securing the terminal block cover and slide the cover straight off the terminal
block (see
Figure 7-9
).
Figure 7-9
DC-Input Power Supply Front Panels
Step 4
Disconnect the DC-input wires from the terminal block. Disconnect the ground wire last.
Step 5
Disconnect the central office (CO) ground from the CO ground connector (
Figure 7-10
).
Figure 7-10 DC-Input Power Supply CO Ground
Step 6
Loosen and remove the captive screws on the power supply (see
Figure 7-9
).
Caution
Use both hands to remove and install power supplies.
Step 7
Grasp the power supply handle with one hand and place your other hand underneath as you slowly pull
the power supply out of the bay (see
Figure 7-11
).
H8767
0
I
OK
OK
FAIL
DC
FAN OUTPUT
Terminal
block
cover
Remove
Captive screw
Remove
Power
switch
28649
o
CO ground
connector
location
o
PS1
PS2
FAN
LINK
SLOT 2
SLOT 1
PCMCIA
EJECT
Enet
RX
TX
RESET
SWITCH/PROCESSOR
