... Industry-specific, antistatic, anti-jamming, 600 W lightning protection . USB TO three wire RS485 converterIndustry-specific, antistatic, anti-jamming, 600 ... medium: twisted pair or shielding wire;11), Transmission distance: USB to turn 485 transmission distance: 1.2 km above;12 ... kinds of industrial automation;Instrumentation;(7), parking lot;The bus fee;(8), dining room to sell rice system;Staff ...