Cisco 7600-SIP-400 - SPA Interface Processor 400 Installation Manual page 225

Chapter 5 Removal and Replacement Procedures
Wire for 2700 W (right side of power supply bay) as follows:
Step 10
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).
Note Be sure to place a plastic insulator over the smaller terminal block even if you are even if you are not
attaching DC-input wires to it; this ensures that the plastic insulator is available for future use.
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 5-94
Terminal
block cover
Power
switch
From the right side of the power supply, connect the DC-input wires to TB1
d.
Figure
Note
Place and secure left and right inner terminal block cover.
e.
OL-4503-26
DC-Input Wire Connections for 2700-W DC-Input Power Supply, Right Side of Power
Plastic
insulator
I
0
INP UT OK
1
Captive
installation
screw
Bay
5-94) in this order:
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).
FAN
OUT PUT
2
3
OK
FAIL
( ) Ground
Cisco 7600 Series Router Installation Guide
Removing and Replacing the Power Supply
(Figure
Power leads
attached to
terminal block
(+) Positive
( - ) Negative
(+) Positive
( - ) Negative
(Figure 5-91
5-94).
and
5-97