5-89
Cisco 7600 Series Router Installation Guide
OL-4503-26
Chapter 5 Removal and Replacement Procedures
Removing and Replacing the Power Supply
Note
For proper 4500W DC-input redundant power configuration, three pairs of input wires for
one 6000W DC-input power supply must come from the same battery system (A feed); three
pairs of input wires for the other 6000W 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.
Step 11
Wire for 6000 W (right side of power supply bay) as follows:
a.
From the right side of the power supply, connect the ground wire to the ground (
Figure 5-88
).
Figure 5-88
DC-Input Wire Connections for 6000-W DC-Input Power Supply for Right Side of
Power Bay
b.
From the right side of the power supply, connect each of the DC-input wires to the terminal block
(
Figure 5-82
and
Figure 5-88
) in this order:
Negative (-)
Positive (+)
191293
R
U
N
IN
S
TA
LL
CISCO SYSTEMS,
INC
1
2
3
4
INPUT OK
FAN
OK
OUTPUT
FAIL
Terminal
block cover
Power leads
attached to
terminal block
( ) Ground
Input power
module
( - ) Negative
(+) Positive
( - ) Negative
(+) Positive
( - ) Negative
(+) Positive
( - ) Negative
(+) Positive
Captive
installation
screw
Power
switch