Cisco 6509 - Catalyst Chassis Switch - Page 188

4-48
Catalyst 6500 Series Switches Installation Guide
OL-5781-04
Chapter 4 Removal and Replacement Procedures
Removing and Installing the DC-Input Power Supplies
Step 3 Prepare the source DC-input power cables by attaching the appropriately sized lugs.
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 Figure 4-37.) The
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
Caution Use both hands to install and remove power supplies. Each DC-input power supply weighs 32 pounds
(14.5 kg).
Step 4 Grasp the power supply handle with one hand, and place your other hand underneath the power supply.
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.)
Figure 4-38 Handling a 4000 W DC-Input Power Supply
Crimp area
120563
2.25
.25 .37.63
Ø .267
2 holes
All measurements in inches
104978
IN
PU
T O
K
FAN
O
K
O
UTPUT
FAI L
I
0
1
3
2
+
VE-1
-
VE-1
+
VE-2
-
VE-2
+
VE-3
-
VE-3