Keep the  device far  from  high-frequency, strong-current  devices,  such  as  radio 
 
transmitting station.
Use electromagnetic shielding when necessary.
 
Lightening Protection
Extremely high voltage currents can  be produced instantly when lightning occurs  and the  air 
in the electric discharge path can be instantly heated  up to 
20,000℃
. As this instant current 
is strong enough to damage electronic devices, more  effective lightning protection  measures 
should be taken.
Ensure the rack and device are well earthed.
 
Make sure the power socket has a good contact with the ground.
 
Keep a reasonable cabling system and avoid induced lightning.
 
Use the signal SPD (Surge Protective Device) when wiring outdoor.
 
Note: For detailed lightning protection measures, please refer to Chapter  3 
Lightning Protection.
Installation Site
When  installing the device  on a rack or  a  flat workbench, please note  the  following 
items:
The rack or workbench is flat and stable, and sturdy enough to support the weight 
 
of 5.5kg at least.
The rack or workbench has a good ventilation system. The equipment room is well 
 
ventilated.
The rack is well grounded. Keep the power socket less than 1.5 meters away from 
 
the device.
Phillips screwdriver
 
Installation