Network Router User Manual

5-11
Cisco 7609 Internet Router Installation Guide
OL-5079-04
Chapter 5 Removal and Replacement Procedures
Removing and Replacing the Power Supply
Note For 2500W power supplies, use 90-degree C copper conductors for North
American installations.
Step 8 Connect the DC-input wires to the terminal block (see Figure 5-6) in the
following order:
• Ground
• Negative (–)
• Positive (+)
Warning When installing the unit, the ground connection must always be made first
and disconnected last.
Figure 5-6 DC-Input Power Supply Connectors
IN
P
U
T
O
K
F
A
N
O
K
O
U
T
P
U
T
F
A
IL
I
0
18736
Power leads attached
to terminal block
(+) Positive
( - ) Negative
( ) Ground
Captive
installation
screw
DC-input power supply
with the terminal block
cover removed
Power
switch
DC-input cable