Emi; Lightning Protection - H3C SecPath U200 Series Installation Manual

Figure 11 Using an ESD-preventive wrist strap
(1) ESD-preventive wrist strap
(3) Alligator clip

EMI

All electromagnetic interference (EMI) sources, from outside or inside of the UTM device and
application system, adversely affect the UTM device in a conduction pattern of capacitance coupling,
inductance coupling, electromagnetic wave radiation, or common impedance (including grounding
system) coupling. To prevent EMI, perform the following steps:
Take measures against interference from the power grid.
•
• Do not use the UTM device together with the grounding equipment or lightning-prevention
equipment of power equipment, and keep the UTM device far away from them.
Keep the UTM device far away from high-power radio launchers, radars, and equipment with high
•
frequency or high current.
Use electromagnetic shielding when necessary.
•

Lightning protection

To protect the UTM device from lightning, do as follows:
Make sure the chassis is properly grounded. For how to ground the UTM device, see
•
the UTM
• Make sure the grounding terminal of the AC power receptacle is properly grounded.
device."
(2) Lock
10
"Grounding