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  • Converts RS-232 to USB interface
  • Complies to USB 1.1 and USB 2.0 standards
  • Automatic adjustment of data rate and format
  • Galvanic isolation up to 1.5kV DC
  • Plug & Play installation
  • Power supplied from USB port – no additional supply is required
  • Compatible with Windows 98/ME/2000/XP and Linux operating systems


DC USB/232 ISO is a communication converter intended for interconnecting industrial serial buses and devices with RS-232 connection to PC’s USB port.

Connecting this converter to PC additionally exceeds the capacity of RS-232 ports. Data rate and format adjustment is performed according to requirements of RS-232 device. Module is power supplied from USB port and galvanic isolated from RS-232 devices (network). It is compatible with most operating systems enabling two access modes: as virtual serial COM port (VCP drivers up to 115 kbps), and as direct USB port (D2XX drivers up to 1 Mb/s).




DC USB/232 ISO is completely adjusted for applications in industrial communications and process automation, alarm systems and telemetry.
It is used for:

  • Interconnecting distributed I/O modules and PLCs to PC;
  • Galvanic isolation of PC from RS-232 networks;
  • Connecting PC without COM ports to RS-232 communication bus;
  • Increasing number of COM ports on PC;
  • Field data readout using laptop;

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Technical specifications
Communication connectors USB (type B); RS-232 (standard DB-9 male connector)
Compliance USB 1.1 and USB 2.0 standard
Data rate and format Automatically determined by RS-232 device
Maximum distance 20m @ 9600 b/s
Supported operating systems Windows 98/ME/2000/XP and Linux
Cable in set USB cable (type A to type B) 1.5 m
LED indicators ON, Tx, Rx
Galvanic isolation 1.5kV DC
Power supply From USB port – no additional mains adapter is required
Operating temperature -25 to 70°C
Dimensions 76 x 42 x 20 mm