Cisco 6509 - Catalyst Chassis Switch Installation Manual page 182

Removing and Installing the DC-Input Power Supplies
Remove the two screws that secure the outer terminal block cover, and remove the cover from the power
Step 6
supply.
Remove the two screws that secure the left inner terminal block cover, remove the cover, and set it aside.
Step 7
Remove the one screw that secures the right inner terminal block cover, remove the cover, and set it
aside.
Note
Note
Place both plastic insulators over the terminal areas, aligning the circular holes in insulating cover with
Step 8
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
Step 9 Wrap the large perforated flaps around each pair of conductors, inserting each locking tab into the rear
of the 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 DC-input wires to the left power supply terminal
Step 10
block
Ground
1.
Negative (-)
2.
3. Positive (+)
Note
Catalyst 6500 Series Switches Installation Guide
4-42
You must remove three terminal block covers for the 4000 W DC-input power supply. The
left-side inner terminal block cover has two securing screws, and the right-side inner terminal
block cover has one securing screw.
You must install the plastic insulators that are shipped with the power supply.
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 action ensures that the plastic insulator is available
for future use.
(Figure 4-33) in this order:
When you tighten the terminal nuts, make sure that they are snug. Do not overtighten them.
Overtightening the terminal nuts can break the terminal block. (Maximum torque:
36 inch-pounds.)
Chapter 4 Removal and Replacement Procedures
OL-5781-04