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capacitance, inductance and other electronic components by
capacitance, inductive coupling, impedance coupling and
other conductive, in order to reduce the adverse effects
caused by electromagnetic interference, please note the
following：
1．Power supply system to take the necessary anti-grid
interference measures;
2．Switches should be far away from high-frequency high-
power, high-current devices, such as wireless
transmitters;
3．If necessary, take electromagnetic shielding measures
Lightning protection
When a lightning strike occurs, a strong current will be
generated in an instant cause fatal damage to electronic
equipment. To achieve better lightning protection, please note
the following：
1．Make sure the rack and the ground to maintain good
contact;
2. Make sure the power outlet is in good contact with the
earth;
3. Reasonable wiring, to avoid the internal sense ray;
4. Outdoor wiring, it is recommended to use the signal
lightning protection device
Installation desk requirement
Regardless of whether the switch is installed in a rack or on
another horizontal workbench, be aware of the following: