Features 1.Standards: conforming to USBV1.0, 1.1 and 2.02.-485,-422 TIA/EIA Standard3.USB signals: VCC, DATA+, DATA-, GND and FG4.-422 Signal: /R+,/R-,RXT+,RXD-,GND; -485 signals: /R+,/R-.GND5.Working mode: asynchronous working,-to- or -to-multipoint 2 wires (half duplex) 4 wires (full duplex)Single chip USB to asynchronous serial data transfer interfaceDirection control: Adopt the technology which automatically controls the data- direction,automatically distinguish and control the data-transmission direction;Support Bits per second Data transfer rates from 300 baud to 921600baud;UART interface support for 7 or 8 data bits,1 or 2 stop bits and even/odd/mark/space/none control none,hardware and xon/xoffSynchronous and asynchronous bit bang interface with RD and WR strobesTransmission distance: -485/422 port:1.2km (300bps-921600bps).USB port : No more 5 metersInterface protection: surge protection and 15KV ESD protectionLoad capability; Support -to-multipoint transmission. Each converter can 32 -422 or -485 interface equipmentSignal indication: indicator lights for (PWR), Send (TXD) and Receive (RXD)Transmission media: twisted-pair cable or shielded cable;Extended operating temperature range; -40 to 85 CColour: Blackmaterial: plasticPackage Contents:1 x USB to rs485 rs422 CableOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.