Removing and Replacing the Power Supply
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 5-89 DC-Input Wire Connections for 2700-W DC-Input Power Supply, Right Side of Power Bay
Terminal
block cover
Power
switch
d.
From the right side of the power supply, connect the DC-input wires to TB1
Figure
Note
Place and secure left and right inner terminal block cover.
e.
Using the cable tie provided, place the cable tie through the slot at the top of the right terminal block
f.
cover and secure the wiring to the left terminal block.
Secure outer block cover.
g.
Cisco 7600 Series Router Installation Guide
5-92
Plastic
insulator
I
0
INP UT OK
1
Captive
installation
screw
5-89) 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).
Chapter 5
FAN
OUT PUT
2
3
OK
FAIL
( ) Ground
Removal and Replacement Procedures
(Figure
5-89).
Power leads
attached to
terminal block
(+) Positive
( - ) Negative
(+) Positive
( - ) Negative
(Figure 5-86
and
OL-4503-24