USB-COM-2SM - IO Products

USB two-port serial RS-232/422/485 adapter designed for use with any computer system equipped with a USB port. PC/104 sized board and mounting holes installed in a small rugged enclosure with two DB9 connectors.


  • Two-port serial communications adapter for USB 1.1 and USB 2.0 host ports
  • Supports field selectable RS-232, RS-422 or RS-485 protocols, per port
  • Includes type FT232 UART with 384-byte receive/128-byte transmit FIFO buffers
  • Speeds up to 921.6Kbps for RS-422/485 and 230Kbps in RS-232 mode
  • Power and individual port activity LEDs visible at front panel
  • All required power drawn from USB port, no external power adapter required
  • Compact, low profile enclosure

  • Ordering Guide

    USB-COM-2SMTwo-Port USB to Serial RS-232/422/485 Adapter
    For 3rd parties memory module comparability, also check (CMTL Advanced Tested Memory List)
    *Specifications are subject to change without notice.
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