Working principle(document download)
 
          The KNX-TP/RS485 Gateway enables bidirectional transparent communication between KNX TP bus and industrial serial interfaces. By converting KNX-TP control data into standard RS485 signals, this device establishes seamless integration between smart building systems and industrial control networks. It supports reverse data transmission, allowing PC hosts or serial devices to access smart lighting terminals via KNX-TP-to-RS485 level conversion.

         Featuring electrical isolation technology, the gateway seamlessly interfaces with KNX-TP sensors, actuators, dimming modules, and other smart terminals. Users can connect HMIs, gateways, or other devices via the RS485 interface for centralized monitoring and data exchange of building automation systems, including lighting, HVAC, and energy management. Both the KNX-TP twisted-pair interface and differential RS485 port are equipped with professional-grade protection circuits to ensure stable communication in harsh industrial environments..

 
 
        Product Features:

         1.Transparent Protocol Conversion
            Hardware passthrough architecture with zero-latency bidirectional KNX-TP↔RS485 interaction; 
         2.Industrial-Grade Reliability 
            Built with imported ST CPU and ON Semiconductor KNX chipset, wide-temperature design, and full SMT process for extreme environments.
        3. Compact Deployment
            DIN-rail snap-on mounting for high-density industrial cabinets
        4. Adaptive Communication 
            RS485 (19,200 bps) master/slave mode, compatible with Milesgo industrial automation systems.
        5. Multi-Layer Protection 
           Triple safeguards (over-current/short-circuit/surge) + 2,500V DC interface isolation for interference immunity.
        6. Status Visualization
           Dual LEDs (TX/RX) and data flow indicators for real-time monitoring and fault diagnosis. 
        7. Wide-Voltage Power Supply
          12-24V AC/DC input with reverse polarity protection and <2W low consumption, suitable for unstable grids.
        
         Schematic Diagram





         Hardware Parameter

          Indicator Light Description