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USB to 2 ports RS232 and 2 ports RS422/485 Isolated Converter


  • USB-2.0 device controller.
  • Allow user custom adjust baud-rates.
  • Each Port can impendent set up the baud-rate and data format.
  • On-Chip 512-Byte FIFO for upstream and downstream data transfers for serial Port.
  • System gets four serial port when the converter plug in.
  • Auto switching RS422/485 detecting.
  • Auto direction flow control on RS485.
  • Auto baud rate switching from 300bps to 256 Kbps.
  • Direct power from USB port , no need external power supply.
  • 3000 VDC isolation protection on RS422/485.
  • Surge protection on RS422/485 data line.
  • Power and TXA/RXA/TXB/RXB communication LED indicator
  • Din-Rail (option)or panel mount Driver support:
  • Driver Support: Android/Win10/Win8.1/Vista64/32,Windows 98/ME/2000/XP/WIN 7/CE5.0~7.0 , and Linux, and Mac OS .


  • Input: USB 2.0 protocol.
  • RS232 output: Standard 9 pin DTE full-duplex.
  • RS422 output: Differential 4 full-duplex wires (TX+, RX+, TX-, RX-)
  • RS485 output: Differential 2 half-duplex wires (D+, D-).
  • Data Format: Asynchronous data with all common combination of bits, parity, stop
  • Parity type: None, odd, even mark, space.
  • Data bit: 5, 6, 7, 8
  • Stop bits: 1, 1.5, 2.
  • Cable: USB 2.0 type A to type B cable.
  • Communication speed: form 300bps to 256Kbps.
  • RS-422/485 line protection: Against surge, short circuit,+/- 15KV ESD and voltage peak.
  • RS-232 line protection: +/- 15KV ESD.
  • Distance: RS-422/485 Up to 4000ft (1250M).
  • Connection type: Screw terminal for maximum AWG #12~30 wire.
  • DIN rail and panel mount support.
  • Two power input: USB power or external Power.
  • Power consumption: 260mA by USB power.
  • RS422/485 Optical Isolation: 3000V DC.
  • Operating environment: 0 to 65℃.
  • Storage temperature: -20 to 65℃.
  • Dimension: 151mm X 75mm X 26mm.
  • Weight: 395g.
  • Humidity: 10-90% non-condensing. .


The TRP-C08H?allows you?to simultaneously connect 2 RS-232 and 2 RS-422/485 serial devices to?system by using a USB interface.?The RS232 interface support all common PC DTE connection type. For RS-422/485 data lines TRP-C08H provides auto-detecting function in data format, baud rate and data direction flow control, it may automatically configure RS-422/485 signals and baud rate without external switch setting. TRP-C08H is equipped with 3000V DC of isolation and internal surge protection to protect the host computer and converter against high voltage spikes, as well as ground potential differences. TRP-C08H?features a high-speed 256KB transmission rate, and supports various O.S. The industry standard DIN rail design enables users a fast and professional?installation.