Cisco VG202 Manuel d'installation du matériel - Page 36

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Installing the Ground Connection

This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the

Warning

absence of a suitably installed ground conductor. Contact the appropriate electrical inspection

authority or an electrician if you are uncertain that suitable grounding is available. Statement 1024

Use copper conductors only. Statement 1025

Warning

To connect the chassis to a reliable earth ground, perform the following steps:

Step 1

Locate a suitable ground.

Tip

Using a multimeter, measure the resistance between various possible ground locations, such as between

the ground of a junction box (outlet) and the ground of a power tap, between the ground of a junction

box and a metal water pipe, between the Cisco VG202 or Cisco VG204 chassis and the ground of a power

tap, and between the Cisco VG202 or Cisco VG204 chassis and the ground of a junction box. A good

ground connection should read between 0.0 and 0.5 ohms.

Strip one end of the ground wire to the length required for the ring terminal.

Step 2

Crimp the ground wire to the ground lug or ring terminal, using a crimp tool of the appropriate size. (See

Step 3

Figure

Figure 3-4

Attach the ring terminal to the chassis as shown in

Step 4

provided. Use a number-2 Phillips screwdriver, and tighten the screws to a torque of 8 to 10 in-lb (0.9

to 1.1 N-m).

Cisco VG202 and Cisco VG204 Voice Gateways Hardware Installation Guide

3-8

3-4.)

Crimping a Ground Lug onto the Ground Wire

Chapter 3

Installing Cisco VG202 and Cisco VG204 Voice Gateways

Figure

3-5. For a ring terminal, use one of the screws

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