
Chapter 5 Removal and Replacement Procedures
Removing and Replacing the Power Supply
Note For 2500W power supplies, use 
Step 8 Connect the 
•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
Power leads attached to terminal block
(+) Positive
( - ) Negative
( ) Ground
) Ground 

 I
 I
0
Power
| switch | INPUT | FAN | OUTPUT | 
| 
 | OK | OK | |
| 
 | FAIL | ||
| 
 | 
 | 
 | 
Captive installation screw
18736
| 
 | 
 | Cisco 7609 Internet Router Installation Guide | 
 | 
 | 
| 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
