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

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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 (ESD) capability and ensures that the module is more reliable.
It is recommended that the Frame Ground of the PDS-220Fx series module is corrected 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 points, Frame-
Ground as shown in the figure below.
Frame Ground
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PDS-220Fx Series User Manual (V1.2, Apr. 2015)