Cisco Systems 7609 Manuale Utente

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Cisco 7609 Internet Router Installation Guide
OL-5079-04
Chapter 5      Removal and Replacement Procedures
Removing and Replacing the Power Supply
Figure 5-3
DC-Input Power Supply Front Panels
Step 4
Disconnect the DC-input wires from the terminal block (see 
) in the 
following order:
Positive (+)
Negative (–)
Ground
Warning
When installing the unit, the ground connection must always be made first 
and disconnected last.
16028
Power
switch
DC power cable
terminal block
Terminal block
cover
INPUT
OK
FAN
OK
OUTPUT
FAIL
I
0
Status LEDs
Captive installation
screw