DXIO0808E - Ethernet Digital I/O Module

The DXIO0808E is a remote I/O with 8 digital inputs and 8 combined input/outputs that is connected by an Ethernet interface. The combined inputs and outputs are software

configured and may be used as I/O read-back. All I/O channels can be configured as PWM (output) or frequency or event counter (input). They are galvanically isolated from the internal logic and the Ethernet interface.

Additionally, the I/O module offers 8 CODE inputs, used to generate an index, which enables geographical addressing by the application.

The integrated Ethernet controllers, designed by duagon, feature hardware prioritisation and very low jitter. The Ethernet interface supports various real-time communication stacks, e.g. EtherNet/IP – CIP, IPTCom or TRDP. The real-time protocols are built upon duagon's proprietary UDP stack, enabling process data prioritization to decrease the message latency.

Furthermore, the internal logic is prepared for the future "Ethernet on traction vehicles" standard IEC 61375-3-4. The Ethernet interface is compliant to IEEE 802.3 and support auto negotiation, auto MDI-X as well as half and full duplex.

All duagon Ethernet products offer a web front-end that can be used for diagnostic purposes and to upload and execute firmware updates.

The applications running on the DXIO0808E are generally developed by customers. duagon provides a build environment including the development library required to implement any customer-specific application. The development library is accompanied by a simple demo application. On request duagon offers the application development as an engineering service. Please contact duagon for more information about the possibilities.

The DXIO0808E can be powered directly from battery, supporting voltage ranges of 24 Vdc to 110 Vdc. It is designed for harsh rolling stock environment and complies with the EN 50155 standard by:

-40 to +70°C operating temperature

coating against humidity

enhanced EMI and vibration robustness


  • 8 inputs and 8 combined I/O channels, available as input, output or in mixed I/O mode
  • Support for redundant output configurations without back-powering
  • Configuration of I/O channels as PWM output, frequency or event counter input
  • Support for most common real-time Ethernet protocols including EtherNet/IP – CIP, IPTCom and TRDP
  • duagon web server for remote firmware updates
  • -40 to +70°C operating temperature