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USB to RS232/422/485 Optical Isolated Converter


  • Full compliance with the USB V1.0 and 2.0 specification.
  • System gets 1 COM port when the converter is connected.
  • Auto data format detecting.
  • Auto direction flow control on RS-485.
  • Programmable baud rate from 75 bps to 6 Mbps
  • RS232/422/485 Support 3KV isolation
  • 256 byte buffer for upstream and downstream data flow.
  • Direct power from USB port , no external power necessary.
  • 3000V DC isolated protection.
  • Surge protection on RS422/485 data lines.
  • Power/TX/RX mode LED indicator.
  • DIN rail or panel mount support.
  • Driver support: Android/Windows 8/8.1/ 98/ME/2000/XP/CE3.0/WIN 10, and Linux, and Mac OS.


  • USB interface: Fully compliant with V1.0, 2.0 specification.
  • USB to serial bridge controller; Prolific PL2303TA (TRP-C08 Version:2.1).
  • RS-232 signal: 5 full-duplex (TXD, RXD, CTS, RTS, GND).
  • RS-422 signal: Differential 4 full-duplex wires (TX+, RX+, TX-, RX-).
  • RS-485 signal: 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 or 16.
  • Stop bits: 1, 1.5, 2.
  • Cable: USB type A to type B.
  • Communication speed: 75~128KBbps.
  • RS-422/485 line protection: Against surge, short circuit, and voltage peak.
  • Transmission distance: RS-422/485 Up to 4000ft (1200M ).
  • Connection type: Screw terminal accepts AWG #12~30 wires.
  • Signal LED: Power on, TX, RX.
  • Direct power from USB port.
  • Power consumption: 1.2W.
  • Isolation voltage: 3000V DC.
  • Operating environment: -10 to 50℃ .
  • Storage temperature: -20 to 70℃.
  • Humidity: 10-90% Non-condensing.
  • Dimension: 151mm X 75mm X 26mm .
  • Weight: 375g .


The TRP-C08?allows you to connect your serial devices to systems by using a USB interface.?With auto configuration in data format, baud rate and RS-485 data flow direction control. TRP-C08 is able to automatically configure RS-232, RS-422 or RS-485 signals to baud rate without external switch setting. TRP-C08 is equipped with 3000V DC of isolation and internal surge-protection on each data lines to protect the host computer and converter against high voltage spikes, as well as ground potential difference. TRP-C08?also features a high-speed 256 Kb/s transmission rate, and supports various O.S. The?industry DIN rail?and?panel mounting design?enable?user a?fast and professional installation.