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(Replaced by USB-COM Plus Mini)

USB to 1x RS422/485 port (DB9, male)

Vscom USB-COM-I, an USB to RS422/485 serial port converter DB9 connector
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Industrial serial ports on USB connect RS-422 and RS485 devices, used in industrial environment. With RS-485 the data direction is controlled by the port, without further action from the software.
The high speed serial port with the 128 byte FIFO allow high speed communication, even in heavy loaded systems. Unique features reduce the system load. The serial port also allows unusual speed settings like 500.000bps.


  • Phased Out, no longer available
  • RS422/485 DB9 male ports
  • Speed up to 3000 kbps
  • no external power supply

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Hardware Specifications
  Serial interface
1 x RS422/485 configured by DIP switch
Speed up to 3000 kbps
Connector DB9 male
  Available Modes
RS422 full duplex
RS485 4-wire, full duplex
RS485 2-wire, half duplex, with echo
RS485 2-wire, half duplex, without echo
RS422: Tx+/-, Rx+/-, RTS+/-, CTS+/-, GND
RS485 4-wire: Tx+/-, Rx+/-, GND
RS485 2-wire: Data+/-, GND
  USB Interface
USB 2.0
Bus powered
No external power supply
Windows 2000 to Windows 10 (x86 and x64)
Windows Server 2000 to 2012 (x86 and x64)
Also Windows 98/SE/ME.
Linux (Kernel 2.6 built-in, 2.4 available)
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Ordering Information
  Part Number
  Product Name
  Packing list
VScom USB-COM-I Adapter
USB cable 0,9m
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You can purchase VSCOM's products easily from a wide variety of leading technology distributors or partners. Please call us or contact us by mail to find the best ordering method for your needs.
  * Specifications are subject to change without notice.
  * All the trademarks and brands are property of their rightful owners.

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