Cisco VG202 Краткое руководство по эксплуатации - Страница 12

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Также для Cisco VG202: Руководство по настройке программного обеспечения (50 страниц), Руководство по установке оборудования (50 страниц), Руководство (10 страниц), Руководство по установке оборудования (48 страниц)

Grounding the Chassis

You must connect the voice gateway chassis to a reliable earth ground; the ground wire must be installed in accordance with

local electrical safety standards.

• For NEC-compliant grounding, use size AWG 14 (2 mm

• For EN/IEC 60950-compliant grounding, use size AWG 18 (1 mm

terminal.

• To ground the chassis, you will need a crimp tool and a number 2 Phillips screwdriver.

Before You Begin

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 voice gateway chassis and the ground of a power tap, or between the chassis and the ground of a junction

box. A good ground connection should read between 0.0 and 0.5 Ohm.

Procedure

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

Step 1

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

Step 2

Step 3

Attach the ring terminal to the chassis as shown in

number 2 Phillips screwdriver, and tighten the screws to a torque of 8 to 10 in-lb (0.9 to 1.1 N-m).

Figure 8

Chassis Ground Connection Using Ring Terminal

V G 2 0 4

Fa st E th er

ne t

C O N SO LE

FX S

0/ 1

0/ 0

A U X

0/ 3

0/ 2

Ring terminal attachment

Step 4

Connect the other end of the ground wire to a grounding point at your site.

0/ 1

0/ 0

12 V D C

S A

) or larger wire and an appropriate user-supplied ring terminal.

) or larger wire and an appropriate user-supplied ring

Figure

8. For a ring terminal, use one of the screws provided. Use a