Did the BMS control board experience communication interruption during the 1kV/m electric field radiation immunity test?

Communication interruption during the 1kV/m radiated immunity test indicates that the communication interface or core MCU was subjected to strong electromagnetic interference. The interference may act directly on the cable through front-door coupling or penetrate the equipment's interior through rear-door coupling. Countermeasures include strengthening shielding and filtering. Use shielded cables and terminate the shielding layer 360 degrees to the metal connector housing. Add common-mode chokes and TVS diodes at the communication interface. Shield or ground critical signal lines such as the MCU's reset and clock signals. Ensure the integrity of the chassis shielding, using conductive pads in gaps. Use ferrite beads and capacitors for local filtering of the on-board power supply to improve power integrity. Applying these measures comprehensively can significantly improve the system's immunity to strong electric fields.