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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
INPUT
OK
FAN
OK
OUTPUT
FAIL
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