USB-COM Plus Series Converters from USB 2.0 to 1 - 16x RS232, RS422, RS485

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Benefits of the USB-COM Plus Interface Converters from USB 2.0 Fullspeed to Serial-COM

  • Use devices with RS232 together with modern PCs over USB.
  • 1, 2, 4, 8 or 16 serieal ports. RS232 and/or RS485/422.
  • Models with isolation.

USB-COM Plus Series Converters from USB 2.0 to 1 - 16x RS232, RS422, RS485

The USB-COM Plus adaptors connects up to 16 RS232 or RS422/RS485 devices to your PC by a USB 2.0 Full Speed port. The serial port(s) and USB are ESD protected, compliant to IEC 61000-4-2 (8 kV contact/16 kV air discharges), the ISO models are isolated for 2.5 kV.

The serial ports support RS232, RS422 and RS485 in full-/half-duplex operation mode. The operation mode of the serial ports is easy configured by one DIP switch. The configuration also activates built-in RS485 termination if required, no jumpers needed.

Standard drivers are available for major operating systems: Windows 2000 to Windows 10 (x86 and x64), Windows Server 2000 to 2012 (x86 and x64), Linux (Kernel 2.6 and later built-in), Mac OS X. Installation by automatic download from the internet.

  • 1x, 2x, 4x, 8x, or 16x RS232/RS422/RS485 ports.
  • USB 2.0 High Speed interface (USB 1.1 compliant).
  • Models ISO/SI: 2.5 kV isolation per serial port.
  • USB, serial ports and power supply ESD protected.
  • Robust metal case.
  • Jumperless, software and DIP ports configuration.
  • Serial speed max. 1000 (RS232)/12000 (RS485) kbps.
  • 1 and 2 port models: DIN-rail and wall mount,
    4, 8, 16 port models: 19-inch and wall mount.
  • 1 and 2 port models USB bus powered,
    4, 8, 16 port models wide range DC-in 9...54 V, 4 W (external power supply/optional accessory).
  • All USB-COM Plus devices can be used to expand the serial ports for NetCOM-PLUS device servers.
  • Wide range operating temperature (-25...+75°C).

Model Overview

Model Option1) Conversion from to2) Rate Power supply
USB-COM Plus Mini -ISO/SI 1 Port USB 2.0 Full Speed (USB 1.1 compliant); type B connector 1 port RS232, RS422, RS485 RS232: 180 bps...921.6/1000 kbps;
RS422: Up to 3 Mbps
RS485: Up to 3 Mbps
USB bus powered
USB-COM Plus -ISO/SI 1 port RS232, RS422, RS485 USB bus powered
USB-2COM Plus -ISO/SI 2 ports RS232, RS422, RS485 USB bus powered
USB-4COM Plus -ISO/SI, -2324) 4 ports RS232, (RS422, RS485)4) USB bus poweredand/or external, optional accessory3)
USB-8COM Plus -ISO/SI, -2324) 8 ports RS232, (RS422, RS485)4) USB bus powered and/or external, optional accessory3)
USB-16COM Plus
(= 2x USB-8COM Plus)5)
-ISO, -2324) 16 ports RS232, (RS422, RS485)4) USB bus powered and/or external, optional accessory3)
  1. Compliant with IEC 61000-4-2 ESD 8 kV contact/16 kV air discharge. ISO models: Galvanically isolated 2.5 kV.
  2. 1 and 2 port models: Configured by DIP switch. 4, 8 and 16 port models: Configurable by software.
  3. Art.-Nr. 6031: Power suply, 12 VDC/1 A.
  4. Models -232 with RS232 only, no RS422/485.
  5. The USB-16COM Plus consists of 2x USB-8COM Plus mounted together with the RK-NCP (included) and connected (see picture).

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