DPtech DPX19000 Series Deep Service Switching Gateway
Installation Manual
Chapter 3 Installation Preparation
3
the device can be badly damaged when excessive static electricity is present. To get much better ESD
effect, you should:
Connect your device to the earth ground properly.
Keep the equipment room as clean as possible.
Maintain adequate temperature and humidity.
Wear an ESD-preventive wrist strap and clothes when handling the circuit board.
3.2.4 Anti-interference requirements
All interference sources, wherever they are from, impact the switch negatively in the conducted emission
patterns of capacitance coupling, inductance coupling, electromagnetic wave radiation, and common
impedance (including the grounding system) coupling. To resist the interference, make sure to:
The alternating power supply system is TN system. Adopt single-phase three wire socket with
protection ground wire to filter electricity power interference by the device filter circuit.
Keep the device far from the strong power radio launchers, radar launchers, and high frequency
and high-current equipment.
Use electromagnetic shielding when necessary, such as you can use shielded cable
Require you using interface cable indoors, not use it outdoors, to prevent overvoltage and over
electricity damaging the device by thunder.
3.2.5 Lightning protection
Although the switch is designed to be lightning resistant, your device can get damaged when excessive
lightning is present. To protect your device against lightning,
Use protective ground wire to connect to the earth ground.
Ensure the ground point of the power socket is well connected to the earth ground.
Add a lightning arrester onto the front end of the power input to better protect the power supply
from lightning strikes.
3.2.6 Grounding requirements
Using a good grounding system to protect your switch against lightning shocks, interferences, and ESD is
essential to the operating reliability of your switch.
Summary of Contents for DPX19000 Series
Page 67: ...Chapter 6 Troubleshooting 1 ...
