H3C Technologies H3C S5820V2 Series Switches - Manual (Page 21)

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NOTE:
•
H3C recommends that you use the primary grounding point or auxiliary grounding point 1, because the
grounding cable and grounding screw provided with the switch are applicable only to these two
grounding points.
• To use auxiliary grounding point 2 on the S5820V2-48S/S5820V2-52QF, S5820V2-52QF-U,
S5820V2-52Q, or S5820V2-54QS-GE switch, prepare a grounding cable yourself. The connection
method is the same as connecting to the other two grounding points.
Grounding the switch by using the AC power cord
If the installation site does not have any grounding strips, you can ground an AC-powered switch through
the protective earth (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 ground contact in the power outlet is not connected to the ground, report the problem and reconstruct
the grounding system.
Figure 14 Grounding through the PE wire of the AC power cord
(1) Three-wire AC power cable (2) Chassis rear panel
1 2