Router Installation and Configuration Guide

9-6
Cisco SCE8000 Installation and Configuration Guide, Rel 3.1.7
OL-16478-02
Chapter 9 Removal and Replacement Procedures
Removing and Replacing the Power Supply
Step 2 Remove the four screws securing the terminal block cover, and slide the cover off the terminal block.
Figure 9-3 DC-Input Front Panel for 2700-W DC-Input Power Supply
Step 3 Remove the two screws securing each of the cable holder covers, and remove the cable holder covers off
the cable holders.
Step 4 Disconnect the DC-input wires from the terminal block.
Always disconnect the DC-input wires in this order:
• Positive (+)
• Negative (-)
• Ground
Warning When installing the unit, the ground connection must always be made first and disconnected last.
Step 5 Remove the two tie-wraps from the ground cable. If there is a long cable tie securing the cable holders,
remove that as well.
Step 6 Loosen the captive installation screws on the power supply.
Caution Use both hands to install and remove power supplies. Each PWR-2700-DC DC/4-input power supply
weighs 19.8 pounds (9.0 kg).
Step 7 Grasp both power supply handles, as shown in Figure 9-4, and slide the power supply completely out of
the chassis.
132218
Captive installation
screws
Captive installation
screws
PWR-2700-DC/4
-VE-1
-VE-1
-VE-2
-VE-2
INPUT1
OK
48V-60V
=40A
INPUT2
OK
48V-60V
=40A
FAN
OK
OUTPUT
FAIL
ALL FASTENERS MUST BE FULLY ENGAGED
PRIOR TO OPERATING THE POWER SUPPLY