5-63
Cisco 7600 Series Router Installation Guide
OL-4503-26
Chapter 5 Removal and Replacement Procedures
Removing and Replacing the Power Supply
Warning
Power supply captive installation screws must be tight to ensure protective grounding continuity.
Note
For proper 4500 W DC-input redundant power configuration, all two pairs of input wires for one 4500W
DC-input power supply must come from the same battery system (A feed); all two pairs of input wires
for the other 4500 W DC-input power supply must come from another battery system (B feed).
Note
For multiple DC input power supply, each DC input must be protected by dedicated circuit breaker or
fuse. The circuit breaker or fuse should be sized according to the power supply input rating and local or
national electrical code requirements.
Figure 5-68
Input Front Panel for 4500-W DC-Input Power Supply
Warning
Power supply captive installation screws must be tight to ensure protective grounding continuity.
Step 5
Remove the four screws securing the terminal block cover, and slide the cover off of the terminal block
(
Figure 5-66
).
1
DC power cable terminal block
6
Tie-wrap
2
Cable holder
7
DC power cable terminal block
3
Captive installation screw
8
Cable holder cover
4
Ground
9
Install/Removal Switch
5
Status LEDs
10
DC power cable terminal block cover
PWR-4500-DC
SWITCH MUST BE IN OFF
“O” POSITION
TO INST
ALL/REMO
VE PO
WER SUPPL
Y.
FASTENERS MUST BE FULL
Y ENGA
GED
PRIOR
TO OPERA
TING PO
WER SUPPL
Y.
+VE-1
48V-60V
40A
-VE-1
+VE-2
48V-60V
40A
-VE-2
+VE-3
48V-60V
40A
-VE-3
INSTALL
REMOVE
+VE-1
48V-60V
40A
-VE-1
+VE-2
48V-60V
40A
-VE-2
+VE-3
48V-60V
40A
-VE-3
INPUT1
OK
INPUT2
OK
FAN
OK
OUTPUT
FAIL
252586
5
1
7
9
3
6
4
8
2
10