COM-1PD(USB)H Serial Communication USB I/O Unit RS-422A/485 1ch / Isolation and Surge Protection - Micro Converter Series

  • Standard Warranty1 yr
  • Extended WarrantyAvailable
  • Max. 921,600bps RS-422A/485 Serial Communication
  • Compatible to USB1.1/USB2.0 and not necessary to power this product externally as the bus power is used.
  • Possibly used as Windows-standard COM ports, using the bundled driver library
  • Electric isolation is provided between channels and between PCs.
  • Max. 127 converter can be installed as configured in the range COM1 to COM256.
  • Each channel is equipped with separate 128-byte / 384-byte FIFO buffers for transmit and receive.
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    For details about an extended warranty, please contact us

Overview / Features

This product is an isolated micro converter for converting the USB port of PC into RS-422A/485 serial communications. Each converter has one channel RS-422A/485 communication port. Higher noise-resistant models with isolation between a PC and bus line as well as a surge protection circuit for communication ports. This product supports a baud rate of up to 921,600bps and has separate 128-byte / 384-byte buffer memory for transmit and receive. It also comes with a Windows driver, which allows boards to be used as OS-standard COM ports.

  • Max. 921,600bps RS-422A/485 Serial Communication
    • This product has one channel RS-422A/485-standard serial ports. Baud rates from 300 to 921,600bps can be set by software. When data is transferred at the high speed, it may not be transferred normally, depending on the use environment such as the external device and cable length used.
  • Compatible to USB1.1/USB2.0 and not necessary to power this product externally as the bus power is used.
    • Compatible to USB1.1/USB2.0 and capable to achieve high speed transfer at Full Speed (12Mbps).
      Not necessary to power this product externally as the bus power of USB is used.
  • Possibly used as Windows-standard COM ports, using the bundled driver library
    • Comes with a driver software that allows the products to be used under Windows in the same way as COM ports on the PC. Under Windows, the product supports the OS-standard Win32 API communication function as well as Visual Basic MSComm. In addition, supplies a diagnostic program to confirm hardware operation and to perform a communication test with equipment.
  • Electric isolation is provided between channels and between PCs.
    • Electric isolation is provided between channels and between PCs. This prevents electric noise between PCs and external circuits.
  • Max. 127 converter can be installed as configured in the range COM1 to COM256.
    • Using a USB hub allows you to install up to 127 converters to a single PC. COM1 to COM256 can be set using the device manager.
  • Each channel is equipped with separate 128-byte / 384-byte FIFO buffers for transmit and receive.
    • These are FIFO format, useful for high speed communications and to reduce the load to the CPU when transmitting/receiving.

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