... specific, antistatic, anti-jamming, 600 W lightning protection . USB TO three wire RS485 converterIndustry-specific, antistatic, anti-jamming, 600 ... as follows: (the product labels have a mark) 1----------D-(B)2----------D+(A) 3----------GND Characteristics:1), power supply: ... twisted pair or shielding wire;11), Transmission distance: USB to turn 485 transmission distance: 1.2 km above;12), USB line ...