USB 2.0 to DB9 RS485 / RS422 Adapter

USB 2.0 to DB9 RS485/RS422 Adapter is completely designed according to industrial standards.
RS422/RS485 interface chip is selected TI’s original industrial-grade chip VP3082, communication distance can reach 1.2KM, with industrial site Anti-interference performance.
CUP chip selection is CH341T, communication speed can reach 2M.
RS422/RS485 output interface adopts simple isolation circuit and 600W lightning protection, to further enhance anti-jamming; industrial-grade standard design, it is suitable for industrial site use.
Chip: VP3082

SKU: W4-2.1

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49.19 inc. VAT

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  • Power: no external power supply, powered by USB port
  • System Requirements: WINDOWS 98 / ME / 2000 / XP / Server 2003 / VISTA / Server 2008 / WIN 7
  • /64/32-bit operating system version.
  • Interface standard: Meet the TIA/EIA RS485/RS422/232 standard.
  • Support baud rate range: 300bps-200kbps.
  • Fully comply with USB2.0 standard, compatible with USB1.1.
  • Support remote wake up and power management.
  • Support plug and play and hot swap (USB side).
  • Working methods: asynchronous work, point-to-point or multi-point, 2 wire half duplex, 4 wire full duplex, shielded ground.
  • Direction control: Adopt data flow to automatic control technology to automatically identify and control data transmission direction.
  • Load capacity: Supports point-to-multipoint per converter allows connection of 128 RS-422 or RS-485 interface devices.
  • Transmission distance: 1200 meters (9600bps) on RS-422/RS485 port, USB port no more than 5 meters.
  • Interface protection: 600W lightning, surge protection, ±15KV electrostatic protection.
  • Use of the environment: -25 ° C to 70 ° C, relative humidity of 5% to 95%.
  • Transmission medium: twisted pair or shielded wire.
  • USB cable length: 80 cm.
  • Weight: 35g.


  • LED display communication data (many display companies have used in batches, almost compatible with all manufacturers of control cards, after testing are very easy to use).
  • Machine tool PLC data read and write.
  • Monitor data read and write and PTZ control.
  • Home appliances centralised control.
  • Access control system; card.
  • Various industrial automation; instrumentation.
  • Parking lot; bus charges.
  • Canteen sale system; employee attendance.
  • Highway toll station; ATM machine; etc.