Cisco 6509 - Catalyst Chassis Switch Installation Manual page 188

Removing and Installing the DC-Input Power Supplies
Prepare the source DC-input power cables by attaching the appropriately sized lugs.
Step 3
The power supply terminal block lug opening width is 0.62 inch (15.8 mm). The terminal posts are
centered 0.63 inches (15.88 mm) apart and have a 1/4-20 thread. We recommend that you use an
appropriately sized industry standard 2-hole, standard barrel compression lug. (See
power supply ground studs, located below the terminal block, also have 1/4-20 threads and require two
1/4-inch split-ring washers and two 1/4-20 hex nuts.
The DC-input wires and the DC power supply ground wires should be sized according to the local and
national installation requirements. Use only copper wire. For North American installations, use
90°C-rated, fine-strand copper conductors.
Figure 4-37 DC Power Cable Lug
Ø .267
2 holes
All measurements in inches
Use both hands to install and remove power supplies. Each DC-input power supply weighs 32 pounds
Caution
(14.5 kg).
Grasp the power supply handle with one hand, and place your other hand underneath the power supply.
Step 4
Slide the power supply into the power supply bay. Make sure that the power supply is fully seated in the
bay. (See
Figure 4-38 Handling a 4000 W DC-Input Power Supply
0
Catalyst 6500 Series Switches Installation Guide
4-48
2.25
.25 .63 .37
Figure 4-38.)
+ 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
Crimp area
Removal and Replacement Procedures
Figure 4-37.) The
OL-5781-04