Cisco 7600-SIP-400 - SPA Interface Processor 400 Installation Manual page 183

Chapter 5 Removal and Replacement Procedures
For proper 2700 W DC-input redundant power configuration, all two pairs of input wires for one 2700W
Note
DC-input power supply must come from the same battery system (A feed); all two pairs of input wires
for the other 2700 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 5-60
4
1
Captive installation screw
2
DC power cable terminal block
3 Status LEDs
4 DC power cable terminal block cover
5
Cable holder cover
6
Ground
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
Attach the appropriate lugs to the DC-input wires. The maximum width of a lug is 0.600 inch (15.2 mm).
Step 6
The wire should be sized according to local and national installation requirements. Use only copper wire.
OL-4503-26
DC-Input Front Panel for 2700-W DC-Input Power Supply
1
6
5
5-60).
2
3
P W R -2
7 0 0 -D C
/6
IN P U T1
-V E -1
IN P U T2
O K
FA N
O U TP U
48 V- 60 O K
V
O K
48 V- 60
FA IL
=4 0A
V
=4 0A
-V E -1
-V E -2
-V E -2
A LL FA
S TE N E
P R IO R R S M U
TO O P S T B E
E R A TI FU LL Y
N G TH E N G A
E P O W G E D
E R S U
P P LY
8
9
7 10
7
Cable holder cover
8
Cable holder
9 Tie-wrap
10 Cable holder
11 Tie-wrap
Cisco 7600 Series Router Installation Guide
Removing and Replacing the Power Supply
T
11
5-55