H3c-technologies H3C WX5000 Series Access Controllers Manuel d'utilisateur télécharger pdf (Page 30)

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Figure 3-16 Ground the access controller through a grounding strip

(1) AC power socket (2) Grounding terminal

(3) PGND wire (4) Grounding strip

The fire main and lightning rod of a building are not good grounding options. The ground wire of the

access controller should be connected to the grounding system in the equipment room.

When a grounding strip is unavailable

1) If earth is available nearby and allows a grounding body to be buried

Hammer an angle steel or steel pipe longer than 0.5 m (1.64 ft) into the earth. In this case, weld the

yellow-green PGND wire of the access controller onto the angle steel or steel pipe, and treat the joint for

corrosion protection.

Figure 3-17 Ground the access controller through a grounding body

(1)

(2)

(3)

(4)

(5)

(1) AC power socket (2) Grounding terminal (3) PGND wire

(4) Earth (5) Angle steel

2) If no grounding body is allowed to be buried

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H3c-technologies H3C WX5000 Series Access Controllers Manuel d'utilisateur Page 30