3Com 4500G - Page 32

32 CHAPTER 2: INSTALLING THE SWITCH
Figure 17 Ground the switch by burying the grounding body into the earth
3 For an AC-powered switch, if neither of the above-mentioned two
conditions is available, ground the switch through PE wire of the AC power
supply. In this case, make sure this PE wire is well connected to the ground
at the power distribution room or AC transformer side.
Figure 18 Ground through an AC PE wire
(1) Power input on the switch (2) Grounding screw on the
switch
(3) Protection ground wire
(4) Ground (5) Angle steel
(1)
(5)
(1)
(2)
(3)
(4)
(1)
(5)
(1)
(2)
(3)
(4)
(1) AC power input (2) Grounding screw (3) Power transformer
(4) PE ground wire (5) Three-wire AC power input cable (6) Ethernet Switch
(2)
(1)
(2)
(3)
(4)
(5)
(6)