
The industrial AI edge gateway's USB 3.0 interface supports connecting USB flash drives and external hard drives to import local training datasets. To prevent ESD damage from hot-swapping, a common-mode filter (CMZ2012A-900T) needs to be connected in series between the USB 3.0 differential lines. A resettable fuse (SMD2920-050-60V) and a TVS P4SMF5.0A are also added to the VBUS power supply. Simultaneously, an ESDULC 5V0D8B is applied to ground on the SSRX and SSTX signal lines. Its ultra-low capacitance of 0.5pF does not affect the 5Gbps speed. Actual testing showed that importing a 10GB dataset took less than 3 minutes, with a contact discharge of ±15kV and no reset.