UT-4DR RS485-Ethernet Interface Description The UT-4DR interface enables communication with the RACS 4 access control system via a 10/100 BaseT Ethernet computer network. Additionally, the interface provides four lines that can be configured as inputs/outputs operated via a web browser or Telnet commands, allowing the interface to be used outside the RACS access control system as a remote I/O port controlled via a computer network. PURPOSE: The UT-4DR interface can be used to program a single PR series access controller or to operate a networked access control system consisting of multiple controllers connected to an RS485 communication bus. The UT-4DR interface ensures bidirectional data flow between access control devices and the PR Master management software. The RACS 4 access control system software has been adapted to work with the UT-4DR interface. During system configuration in the PR Master software, select the communication port (TCP/IP) and the interface type (UT-4DR). Based on this data, the program will automatically adjust the transmission timing parameters to ensure the effective functioning of the communication connection between the computer and the managed system. FEATURES: IP/Ethernet communication interface to the RACS system; Configuration via a web browser; Operation in LAN/WAN 100/10Mbit/s Ethernet networks; Fixed or dynamic IP address; 4 general-purpose I/O lines; 35mm DIN rail housing; Specifications: TCP/IP communication interface to the RACS system; configuration via a web browser; Ethernet: LAN/WAN 100/10Mbit/s; 4 general-purpose I/O lines; control of input lines via a browser or the Telnet protocol; power supply: 12V DC; can be mounted on a DIN rail; fixed or dynamic IP address; can be used outside the RACS 4 access control system as a remote I/O port, controlled via a computer network; weight: approx. 100g; dimensions: 62x85x73mm (width/height/length); operating conditions. operating temperature: 5°C 40°C; humidity: 0% 75%; .