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Catalyst 3650 Switch Hardware Installation Guide
OL-29734-01
Chapter 3 Power Supply Installation
Installing a DC Power Supply
Warning
When installing or replacing the unit, the ground connection must always be made first and
disconnected last.
Statement 1046
Caution Follow the grounding procedure instructions, and use a UL-listed lug (included in the accessory kit).
Follow these steps to install either a single-hole ground lug or a dual-hole ground lug on the switch.
Make sure to follow any grounding requirements at your site.
Step 1 Use the ground lug screw and the lug ring for a single-hole ground connection. Use the dual-hole lug for
a ground connection in a NEBS installation.
Step 2 Strip the 12-gauge or 8-gauge ground wire to 0.5 inch (12.7 mm) ± 0.02 inch (0.5 mm) (Figure 3-11).
Stripping more than the recommended amount of wire can leave exposed wire from the connector. Use
12-gauge copper ground wire for the single-hole ground connection. Use 8-gauge copper ground wire
for the dual-hole ground connection.
Figure 3-11 Stripping the Ground Wire
Step 3 Slide the open end of the ground lug over the exposed area of the wire.
Step 4 Using a Panduit crimping tool, crimp the ground lug to the wire (Figure 3-12).
Figure 3-12 Crimping the Ground Lug
Step 5
Use the ground screw to attach the single-hole ground lug to the switch rear panel. Use two ground
screws to attach the dual-hole lug to the switch rear panel (Figure 3-13).
Step 6 Using a ratcheting torque screwdriver, torque the ground-lug screws to 60 lbf-in. (960 ozf-in.).
Step 7 Connect the other end of the grounding wire to an appropriate grounding point at your site or to the rack.
Insulation
Wire lead
0.5 in. (12.7 mm)
±
0.02 in. (0.5 mm)
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