UT-4DR Interface RS485 to Ethernet

UT-4DR interface is a device enabling communication with RACS 4 access control system through 10/100 BaseT Ethernet network.
  • UT-4DR
  • UT-4DR


UT-4DR interface is a device enabling communication with RACS 4 access control system through 10/100 BaseT Ethernet network.

Apart from this main function, it is equipped also with 4 universal Input/Output lines which can be managed using web browser or by means of Telnet protocol. This feature gives possibility to use the device in other application as a remote I/O port, managed by means of computer network. UT-4DR electronic module is put into plastic enclosure dedicated to mounting onto standard DIN rail.

NOTICE! Using UT-4DR requires PR Master software in version 4.4.6 or higher.


  • power supply 10-15 VDC
  • average current consumption 55 mA
  • IP/Ethernet communication interface for RACS 4 system
  • configuration by means of web browser
  • LAN/WAN 100/10 Mb/s operation
  • static IP address
  • 4 general purpose I/O lines
  • 4 universal I/O lines managed by web browser or Telnet protocol
  • can be used outside RACS4 system as remote I/O port managed by Ethernet network
  • plastic enclosure for DIN rail
  • dimensions: 85.0 x 62.0 x 73.0 mm (height x width x depth)
  • weight: ≈110.0 g
  • CE mark
  • environmental conditions of operation:
    • temperature from -10°C to +40°C
    • humidity from 0% to 75%


UT-4DR Interface RS485 to Ethernet

RS485-Ethernet interface for RACS 4 system only

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