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Figure 60 Ground the switch by burying the grounding conductor into the earth ground
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2
3
4
5
6
(1) Grounding screw (2) Grounding cable (3) Earth
(4) Joint (5) Grounding conductor (6) Chassis rear panel
Grounding the switch by using the AC power cord
If the installation site has no grounding strips or earth ground, you ground an AC-powered switch through
the PE wire of the power cord, but must make sure:
• The power cord has a PE terminal.
• The ground contact in the power outlet is securely connected to the ground in the power distribution
room or on the AC transformer side.
• The power cord is securely connected to the power outlet.
NOTE:
If the
g
round contact in the power outlet is not connected to the
g
round, report the problem and reconstruc
t
the grounding system.
Figure 61 Ground through the PE wire of the AC power cord
(1) Three-wire AC power cord (2) Chassis rear panel
NOTE:
To guarantee the grounding effect, use the grounding cable provided with the switch to connect to the
grounding strip in the equipment room as long as possible.