RCI-2 Interface RS485 to USB

RCI-2 USB-RS485 Communication Interface

RCI-2 enables communication of computer equipped with USB port and devices equipped with RS485 port. Basically, RCI-2 communication interface is designed for installation in RACS 4 system but it can also be used in third party applications as it operates as virtual serial port enabling communication with devices equipped with RS485 port.
Due to built-in galvanic isolation, RCI-2 separates electrically the computer and devices connected to RS485 terminals, therefore equalizing current flow between ground terminals of power supply circuits is prevented.

Order guide

RCI-2 USB-RS485 Communication InterfaceRCI-2 
USB-RS485 interface; DIN rail enclosure


  • power supply 12 VDC
  • average current consumption 20 mA
  • maximum baud rate 230,4 kb/s
  • designed for RACS access control system
  • galvanic isolation between PC USB and RS485
  • virtual serial port driver
  • plastic enclosure dedicated for installation on DIN rail
  • dimensions: 85.0 x 62.0 x 73.0 mm (height x width x thickness)
  • weight: ≈110.0 g
  • CE mark
  • environmental conditions of operation:
    • temperature from +5°C to +40°C
    • humidity from 10% to 95%