Cisco SCE8000 Installation And Configuration Manual page 130

Removing and Replacing the Power Supply
Verify that power is off to the DC circuit connected to the DC-input power supply you are removing.
Step 1
Remove the four screws securing the terminal block cover, and slide the cover off the terminal block.
Step 2
Figure 9-3
Captive installation
screws
Remove the two screws securing each of the cable holder covers, and remove the cable holder covers off
Step 3
the cable holders.
Disconnect the DC-input wires from the terminal block.
Step 4
Always disconnect the DC-input wires in this order:
Positive (+)
•
Negative (-)
•
Ground
•
When installing the unit, the ground connection must always be made first and disconnected last.
Warning
Remove the two tie-wraps from the ground cable. If there is a long cable tie securing the cable holders,
Step 5
remove that as well.
Step 6 Loosen the captive installation screws on the power supply.
Use both hands to install and remove power supplies. Each PWR-2700-DC DC/4-input power supply
Caution
weighs 19.8 pounds (9.0 kg).
Grasp both power supply handles, as shown in
Step 7
the chassis.
Cisco SCE8000 Installation and Configuration Guide, Rel 3.1.7
9-6
DC-Input Front Panel for 2700-W DC-Input Power Supply
P W R - 2
7 0 0 - D C
/4
-V E -1
-V E -1
-V E -2
-V E -2
A LL FA
S TE N E
P R IO R R S M U
TO O P S T B E
E R A TI
N G TH
Chapter 9
IN P U T1
IN P U T2
O K FA N
O U TP U
O K
48 V- 60
T
O K
V 48 V- 60
FA IL
=4 0A V
=4 0A
FU LL Y
E N G A
E P O W G E D
E R S U
P P LY
Captive installation
screws
Figure 9-4, and slide the power supply completely out of
Removal and Replacement Procedures
OL-16478-03