Appendix B: Frame Ground - ICP DAS USA PDS-220F Series User Manual

Appendix B: Frame Ground

Electronic circuits are constantly vulnerable to Electro Static Discharge (ESD), which
becomes worse in a continental climate area. PDS-220Fx series modules feature a new
design for the frame ground, which provides a path for bypassing ESD, allowing enhanced
static protection capability and ensures that the module is more reliable.
It is recommended that the Frame Ground of the PDS-220Fx module is connected to
the earth ground, such as the ground of an AC power supply, to provide better ESD
protection for the module.
The PDS-220Fx module is designed with a Frame Ground contact point, F.G., as
shown in the figure below.
PDS-220 Series User Manual (V1.0, Jun.2010) ----- 66