Cisco 7609-S Installation Guide - Page 85

When installing the unit, the ground connection must always be made first, and disconnected last.

Page 85 highlights

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 DC-input cable Power leads attached to terminal block (+) Positive ( - ) Negative ( ) Ground Power switch I 0 INPUT FAN OUTPUT OK OK FAIL DC-input power supply with the terminal block cover removed Captive installation screw 18736 OL-5079-04 Cisco 7609 Internet Router Installation Guide 5-11

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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