Cisco 6503 - Catalyst Firewall Security Sys Installation Manual page 262

Removing and Installing the DC-Input Power Supplies
Figure 4-39
0
Tighten the power supply captive installation screws
Step 5
Step 6 Remove the two screws that secure the outer terminal block cover Lift the cover up to detach the cover
tabs from the slots in the power supply. Set the cover and the screws aside
Step 7 Remove the two screws that secure the left inner terminal block cover. Lift up on the cover to detach the
cover tab from the slot in the power supply. Set the cover and the screws aside.
Remove the one screw that secures the right inner terminal block cover. Lift up on the cover to detach
Step 8
the cover tab from the slot in the power supply. Set the cover and the screw aside.
Remove the two plastic insulators from the plastic bag that shipped with the power supply. Position the
Step 9
larger plastic insulator (eight holes) over terminal block VE-1/VE-2. Align the holes in plastic with the
terminal block posts. The end flap on the insulator should face away from the DC source cable entry
direction.
Position the smaller plastic insulator (four holes) over the four-post terminal block VE-3. Align the holes
Step 10
in the plastic with the terminal block posts. The end flap on the insulator should face away from the
source DC cable entry direction.
Fold the end flaps down on both insulators to cover the open side of the terminal block (opposite side
Step 11
from cable entry).
From the right side of the power supply, connect the power supply ground cable and the source DC cables
Step 12
to the DC-input wires to the terminal block (see
Ground cable lug to the ground terminal posts
1.
Negative (–) source DC cables to terminal posts –VE-1 and –VE-2
2.
Positive (+) source DC cables to terminal posts +VE-1 and +VE-2
3.
When you tighten the terminal nuts, make sure that they are snug. Do not overtighten them.
Caution
Overtightening the terminal nuts can damage the terminal block. The recommended torque values for
tightening the terminal nuts are 15 inch-pounds (1.7 newton-meters) (minimum) and 20 inch-pounds
(2.2 newton-meters) (maximum).
Catalyst 6500 Series Switches Installation Guide
4-56
Handling a 4000 W DC-Input Power Supply
+ VE-1
+ VE-3
- VE-1
- VE-3
+ VE-2
- VE-2
I
INPU T OK
FAN OUTP UT
1
2
3 OK FAIL
Chapter 4 Removal and Replacement Procedures
Figure 4-40) in this order:
OL-5781-08