Cisco 7600-SIP-400 - SPA Interface Processor 400 Installation Manual page 206

Removing and Replacing the Power Supply
Wire for 4000 W (right side of power supply bay) as follows:
Step 12
Place both plastic insulators over the terminal areas, aligning the circular holes in insulating cover
a.
with terminal posts. The protective end flap on the plastic cover is opposite the wire entry area. The
protective end flap must fold down and cover the open side of the terminal (opposite side from wire
entry).
Wrap the large perforated flaps around each pair of conductors, inserting each locking tab into rear
b.
of slot. Pull the tab until the cover is secured around the power cabling trim and discard excess tab
plastic.
From the right side of the power supply, connect the ground wire to the ground
c.
Figure 5-80
Terminal
block cover
( ) Ground
Power
switch
From the right side of the power supply, connect the DC-input wires to the right power supply
d.
terminal block
Note
From the right side of the power supply, connect the DC-input wires to TB1
e.
order:
Cisco 7600 Series Router Installation Guide
5-78
DC-Input Wire Connections for 4000-W DC-Input Power Supply, Right Side of Power
Power leads
attached to
terminal block
(+) Positive
( - ) Negative
(+) Positive
( - ) Negative
Plastic
insulator
I
0
INP UT OK
1
Captive
installation
screw
Bay
(Figure 5-76 and
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).
Negative (-)
Chapter 5
Plastic
Terminal
insulator
block cover
FAN
OUT PUT
2
3
OK
FAIL
( ) Ground
Figure 5-80) in this order:
Removal and Replacement Procedures
(Figure
Power leads
attached to
terminal block
(+) Positive
( - ) Negative
(Figure 5-80) in this
5-80).
OL-4503-26