Cisco Systems 7200 VXR manual Attaching a Chassis Ground Connection, 3-17

Chapter 3 Installing a Cisco 7200 VXR Router

Attaching a Chassis Ground Connection

Step 4 Repeat Step 1 through Step 3 for any other port adapter interface cables installed in the router.

This completes the procedure for securing port adapter interface cables to the cable-management brackets. Proceed to the following section “Attaching a Chassis Ground Connection” to continue the installation.

Attaching a Chassis Ground Connection

Before you connect power or turn on power to your router, we strongly recommend that you provide an adequate chassis ground (earth) connection for the router chassis. Chassis grounding receptacles are provided on each Cisco 7200 VXR router chassis. (See Figure 1-4.)

To ensure the chassis grounding connection that you provide is adequate, you will need the following parts and tools:

•One grounding lug—Musthave two number-10 screw holes that have a 0.63-inch (16.002-mm) spacing between them, and a wire receptacle large enough to accept a 6-AWG multistrand, copper wire. (See Figure 3-14.) This grounding lug is not available from Cisco Systems; electrical-connector vendors provide this type of grounding lug.

•Two Phillips machine screws with locking washers—M5 (metric), 0.031-inch (0.8-mm) pitch, 0.315-inch (8-mm) length. These screws are not available from Cisco Systems; they are available from any commercial hardware vendor.

•One grounding wire—6-AWG, 0.162-inch (4.115-mm) diameter, with approximately 0.108-inch (2.743-mm) insulation, for a total wire diameter of approximately 0.27 inches (6.858 mm). The wire length is dependent on your router location and site environment. This wire is not available from Cisco Systems; it is available from any commercial cable vendor.

•Number 2 Phillips screwdriver

•Crimping tool large enough to accommodate the diameter of the wire receptacle on your grounding lug

•Wire stripper

Cisco 7200 VXR Installation and Configuration Guide

OL-5013-09 3-17