... Industry-specific, antistatic, anti-jamming, 600 W lightning protection . USB TO three wire RS485 converterIndustry-specific, antistatic, anti-jamming, 600 W ... GND Characteristics:1), power supply: there is no external power supply, power supply by USB ports.2), system requirements: Windows/ME / ... rate scope: 50 BPS-2 Mbps;5), Full compliance with USB2.0 standard, USB1.1 compatible;6), Support remote ...