Multilayer Switch User Manual

2-15

Catalyst 3550 Switch Hardware Installation Guide

OL-6155-01

Chapter 2 Switch Installation

Installing the Optional Ground Kit

For switches that require a two-hole lug for grounding, you can order a kit containing the ground lug and

hardware from Cisco. For the Catalyst 3550-12G, 3550-24, and 3550-24-FX switches, order part number

NEBS-LUG-3550=.

Note When you install the ground-lug kit, you cannot connect an RPS to the switch.

To install the ground lug, you need these tools and equipment:

• Ratcheting torque screwdriver with a Phillips head that exerts up to 15 pound-force inches (lbf-in.)

or 240 ounce-force inches (ozf-in.) of pressure

• Panduit crimping tool with optional controlled-cycle mechanism (model CT-700, CT-720, CT-920,

CT-920CH, CT-930, or CT-940CH)

• 6-gauge copper ground wire (insulated or noninsulated)

• Wire-stripping tool for stripping 6-gauge wires

Note The illustrations in this section show the Catalyst 3550-12T switch as an example. Follow the same

procedure to install the ground lug on the Catalyst 3550-24 and 3550-24-FX switches.

To ground the switch to earth ground, follow these steps. Make sure to follow any grounding

requirements at your site.

Step 1 Use the two Phillips pan-head screws to attach the RPS connector cover to the back of the switch as

shown in Figure 2-16.

Step 2 If your ground wire is insulated, use a wire stripping tool to strip the 6-gauge ground wire to 0.5

inch (12.7 mm) ± 0.02 inch (0.5 mm). (See Figure C-1 on page C-2.)

Step 3 Slide the open end of the ground lug over the exposed area of the 6-gauge wire.

Step 4 Using a Panduit crimping tool, crimp the ground lug to the 6-gauge wire. (See Figure C-2 on page C-3.)

Step 5 Use the two number-10-32 screws to attach the ground lug and wire assembly to the switch rear panel

RPS connector cover, as shown in Figure 2-18.