The E981.03 combines the TP1-256 physical layer, the communication controller and two DC supply outputs for bus powered applications. The internal power management assures KNX conformance under all load conditions.
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  • KNX/EIB transceiver, certified according to KNX TP1-256
  • Analog mode supported
  • Configurable bus current (maximum current and slew rate)
  • Voltage regulators
    - 20V: current capability up to 20mA
    - 3.3V or 5V DC/DC converter: current capability up to 70mA
  • UART host interface (data rate up to 115.2 Kbit/s)
  • SPI for configuration (optional)


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File Description Type
Info Sheet PDF 232 kB

On Request

File Description
E981.03 | Data Sheet

Application Diagram


  • Sensors, actuators, routers, gateways, Bus-powered or externally supplied
  • Security applications

Ordering Information

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Part No. Temp. Range Package Order No.
E981.03 -25°C to +85°C QFN32L7 E98103A38B


Part No. Description Board type Order No.
E981.03 KNX/EIB Transceiver KNX TP Demoboard K98103-0001
E981.03 KNX/EIB Transceiver KNX TP 815 Demoboard
(=Evaluation Board)
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