HEXIN RS232 to RS485 Serial Port Data Interface Adapter Converter 1.2KM 3 Bit

Brand new RS-232 to RS-485 Adapter Converter Weight:45g Easy use, no wire, no tool required Without requiring any AC or DC power A female DB9 interface allows it to be plugged directly into any one of the PC's Com ports Convert RS-232 signal to RS-485 signal Working Modes: Asynchronous, half-duplex, differential transmission Work Environment: -10°C to 85°C, relative humidity 5% to 95% Transmission Distance: 1.2 mile (RS-485), 5 meters(RS-232) Transmission Speed: 300-115200 bps Transmission Media: Common wire, double wire, UTP or Shielding Line Serial Port Feature: Compatible with EIA/TIA RS-232C standard and RS-485 standard Electronic Interface: At the side of RS-232 is a DB9 female (hole-type) connector. At the side of RS-485 is a DB9 male (needle-type) connector, with a connection board