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Grounding the switch
!
connecting the switch grounding cable is crucial to lightning protection, ESD, and EMI
For information about lightning protection, see H3C Network Devices Lightning
To protect against the following types of problems, use a grounding cable to connect the device to
the earthing facility at the installation site:
Bodily injury from electric shocks.
Device and power and data line damages.
Electrical fires, lightning strokes, electromagnetic coupling interferences, ESD damages.
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 with a grounding conductor buried in the earth ground
Grounding the switch by using the PE wire of the AC power cord
chassis views and power supply and grounding terminal positions in the following figures
are for
illustration only.
Grounding the switch with a grounding strip
!
Connect the grounding cable to the grounding system in the equipment room. Do not connect it to a
fire main or lightning rod.
To ground the switch by using a grounding strip:
1. Attach the ring terminal end of the yellow-green grounding cable to the grounding hole in the
switch.
a. Remove the grounding screw from the grounding hole in the switch.
b. Attach the grounding screw to the ring terminal of the grounding cable.
c. Use a screwdriver to fasten the grounding screw into the grounding screw hole.
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