Cisco 7600-SIP-400 - SPA Interface Processor 400 Installation Manual page 191

Chapter 5 Removal and Replacement Procedures
Power supply captive installation screws must be tight to ensure protective grounding continuity.
Warning
For proper 4500 W DC-input redundant power configuration, all two pairs of input wires for one 4500W
Note
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).
For multiple DC input power supply, each DC input must be protected by dedicated circuit breaker or
Note
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
1
DC power cable terminal block
2 Cable holder
3 Captive installation screw
4
Ground
5
Status LEDs
Warning Power supply captive installation screws must be tight to ensure protective grounding continuity.
Remove the four screws securing the terminal block cover, and slide the cover off of the terminal block
Step 5
(Figure
OL-4503-26
Input Front Panel for 4500-W DC-Input Power Supply
RE MO VE
IN ST AL L
SW IT CH
MU ST
TO IN ST
AL L/ RE
FA ST EN
ER S MU
PR IO R
TO OP
9
10
5-66).
1
+V E -1
48 V- 60
V
+V E -1
40 A
48 V- 60
-V E -1
V
40 A
-V E -1
+V E -2
48 V- 60
V
+V E -2
40 A
48 V- 60
-V E -2
V
40 A
-V E -2
+V E -3
48 V- 60
V
+V E -3
40 A
48 V- 60
-V E -3 V
BE IN
OF F "O
" PO SI
40 A
MO VE TI ON
PO W ER
SU PP LY
ST BE -V E -3
.
FU LL Y
EN GA
ER AT IN
GE D
G PO W
ER SU
PP LY .
P W R -4
5 0 0 -D C
7 6
8
6
Tie-wrap
7 DC power cable terminal block
8 Cable holder cover
9
Install/Removal Switch
10 DC power cable terminal block cover
Cisco 7600 Series Router Installation Guide
Removing and Replacing the Power Supply
2
3
IN PU T1
IN PU T2
O K
FA N
O K O UT PU
O K T
FA IL
5
4
5-63