Features:USB to RS485 Converter AdapterUSB connector: to your PCRS485 connector: to your RS485 deviceNo need external power, powered by USB portFully compliant USB 2.0 standard , backward compatible with USB1.1Applications:All kinds with RS485 port device parameter settings , data communicationShort distance , such as parameter settings of the computer peripheral equipment , the use of common data lines can be .A and A port of the device when the wiring is connected , B and device B connected . Some devices D + A and D, - B .LED display of communication data Machine PLC data reading and writing Monitoring data read and write , and PTZ controlCentralized control of household electrical appliancesAccess Control System , cardA variety of industrial automation , instrumentationParking , bus feesDining Hall , staff attendanceHighway toll station, ATM machineSpecification:Dimension:6.0 x1.8x1.4cmColor: BlackNet weight: 8gPackaging weight: 18gSupport System: Windows XP , Vista, Windows 7 , Linux , MacOS , and WinCE5.0 driveSupports baud rate range : 75bps - 115200bps , up to 6MbpsSupports Plug , Play and hot-swap ( USB side) ,Better than using CH341D chip or similar chip to support the laptop USB port .Communication distance up to 1.2KM, with anti-jamming performance of industrial site ,Work temperature range: -40°C ~ +85°CCommunication distance :1200m(max)Package Content:1 x USB to RS485 Converter