
The industrial AI edge gateway has a built-in 5G module that supports SA mode for AI data transmission. The 5G RF front-end is sensitive to power supply noise, requiring a PBZ1608E600Z0T ferrite bead and a 100μF tantalum capacitor to be connected in series at the module's power supply pin. Additionally, an ESD diode (ESD5V0D8B) is added to the SIM card interface to prevent electrostatic damage to the card slot. A TVS P4SMF3V3A is reserved at the antenna port for ESD protection. Furthermore, an RC filter with a 10ms time constant is added to the module reset signal to prevent accidental reset. Actual measured 5G SA mode download speed is 800Mbps, and radiated emissions meet 3GPP standards.