Cisco 7600-SIP-400 - SPA Interface Processor 400 Installation Manual page 236
7600 series
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Removing and Replacing the Power Supply
Note
Wire for 4500 W (right side of power supply bay) as follows:
Step 10
a.
From the right side of the power supply, connect the ground wire to the ground
Figure 5-102
Input power
module
From the right side of the power supply, connect each of the DC-input wires to the right power
b.
supply terminal block
Note
Secure outer block cover.
c.
Cisco 7600 Series Router Installation Guide
5-108
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.
DC-Input Wire Connections for 4000-W DC-Input Power Supply, Right Side of Power
Terminal
block cover
Power
CI SC O SY
ST EM S, IN
C
switch
Captive
installation
screw
Bay
(Figure 5-97
Negative (-)
Positive (+)
When you tighten the terminal nuts, make sure they are snug. Do not over tighten them.
Recommended torque strength is 20 inch-pounds. Over tightening the terminal nuts can
break the terminal block (Maximum torque: 36 inch-pounds).
Chapter 5
1
2
3
IN PU T
4
OK
FA N
OU TP UT
OK
FA IL
( ) Ground
and
Figure
5-102) in this order:
Removal and Replacement Procedures
(Figure
5-102).
Power leads
attached to
terminal block
( - ) Negative
(+) Positive
( - ) Negative
(+) Positive
( - ) Negative
(+) Positive
OL-4503-26
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