H3C Technologies H3C S5830 Series Switches - Manual (Page 26)

Grounding the switch
WARNING!
Correctly connecting the switch grounding cable is crucial to lightning protection and EMI protection.
NOTE:
The power and grounding terminals in this section are for illustration only.
The power input end of the switch has a noise filter, whose central ground is directly connected to the
chassis to form the chassis ground (commonly known as PGND). You must securely connect this chassis
ground to the earth so the faradism and leakage electricity can be safely released to the earth to
minimize EMI susceptibility of the switch.
You can ground the switch in one of the following ways, depending on the grounding conditions
available at the installation site:
• Grounding the switch with a grounding strip
• Grounding the switch through the PE wire of an AC power cord
Grounding the switch with a grounding strip
1. Attach the two-hole grounding lug at one end of the grounding cable to a grounding point on the
switch chassis (see "
Connecting the grounding cable to the switch chassis ").
2. Connect the OT terminal at the other end of the grounding cable to a grounding post on the
grounding strip, and fasten the grounding cable to the grounding post with a hex nut.
Figure 25 Connecting the grounding cable to a grounding strip
(1) Hex nut (2) OT terminal
(3) Grounding post (4) Grounding strip
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