3Com 8807, 8814, 8810 manual Ground the switch when ground bar is available

60CHAPTER 4: SWITCH INSTALLATION

Figure 38 Ground the switch when ground bar is available

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(1)Air filter

(3)PGND wire

(5)Rear panel of the switch

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(2) Grounding screw

(4) Ground bar of the equipment room

■If there is no ground bar but earth nearby and the grounding body is allowed to be buried, you can simply hammer an angle iron or steel pipe no shorter than 0.5 m into the earth. In this case, the yellow-green PGND wire should be welded with the angle iron (steel pipe) and the joint should be processed against eroding. (For the Switch 8800 Family, the grounding screw is on the rear panel. Connect it as illustrated in Figure 38).

Figure 39 Ground the switch when allowed to bury grounding body nearby

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(1)	Air filter	(2)		Grounding screw
(3) PGND wire		(4)		Ground bar of the equipment room
(5)	Angle steel	(6)		Rear panel of the switch

■If both ground bar and the conditions for burying the grounding body are not available, an AC-powered Ethernet switch can be grounded using the PE wire of the AC power supply. In this case, make sure that the PE wire of the AC