Model: UT-890AName: USB to 485/422 converterStandard: Comply with USBV1.1, 1.0, 2.0 standards EIA 485, 422 standardsUSB signal: VCC, DATA+, DATA -, GND, FG-485 signal: T/R+, T/R -, GND-422 signals: T/R+, T/R -, RXD+, RXD -, GNDWorking mode: asynchronous, point-to-point or multipoint, 2-wire half duplex, 4-wire full duplexDirection control: automatic control technology of data flow direction is adopted to automatically identify and control data transmission directionBaud rate: 300-921.6Kbps, automatic detection of serial port signal rateLoad capacity: support point to multipoint Each converter can allow connection of 32 - 422 or 485 interface devicesTransmission distance: 1200m (9600bps) at 485/422 end, and no more than 5m at USB portInterface protection: surge protection, 15KV static protectionInterface type: connector connection of USB Class A male interface and DB9 male interfaceSignal indication: 2 signal indicators TX and RXD, 1 power indicatorTransmission medium: twisted pair or shielded wireBoundary dimension: 1555mm X 36mmX16mm (L X W X H)Operating environment: - 40 C to 85 C, relative humidity: 5% to 95%Transmission distance: 0 - 1200mSupport for Win8/Win10/Win2000/2003/2008/2012/XP/Vista/7/8/8.1/10/CE//Linux, etcColor: As ShownMaterial: plasticPackage Contents:1 * serial cableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.