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24-Channel digital input board

DNx-DIO-401, DNA-DIO-401, DNR-DIO-401, DNF-DIO-401


  • 24 digital inputs
  • 5-36V logic levels
  • I/O throughput rate of 1kS/sec
  • User-programmable hysteresis
  • Requires external 7-36V (24V nominal) power source or can use DNA-PC-912
24-Channel digital input board
Product Style: What do the "DNx" prefixes mean? "DNA" prefix is for a Cube & MIL Cube Board, "DNR" prefix is for a Rack & MIL Rack Board , and "DNF" prefix is for a FLATRACK board.
Software/Programming: How UEI solutions are used. Hosted - Connected to a PC with Windows, Linux, QNX, VxWorks, RTX, or similar OS. Hosted also is for OPC-UA, Modbus and EtherCAT. Standalone - Controller with Linux or VxWorks OS, Simulink I/O Target or UEILogger. Available options for this product are shown in the drop down menu.
Quantity: $840
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Typically in stock for shipment in 3-4 weeks. Subject to global supply chain challenges.

DNx-DIO-401, DNA-DIO-401, DNR-DIO-401, DNF-DIO-401

The DNx-DIO-401 are digital input boards designed for low-speed, high reliability isolated industrial digital I/O.

The DNx-DIO-401 features 24 digital input channels, an I/O throughput rate of 1 kHz, and 350 Vrms isolation. The DNx-DIO-401 is compatible with 5-36 V digital logic levels and can accept a wide range of user-supplied power sources (7 to 36 VDC). In Cube-based applications, the DNA-DIO-401 can be powered internally using a DNA-PC-912 power conversion board.

The DNx-DIO-401 provides a user-programmable hysteresis feature on its digital inputs, which dramatically improves noise immunity of the input signals. All digital inputs are protected with a 100mA PTC fuse and ESD/overvoltage protection device.



  • PowerDNA
  • UEIModbus
  • UEILogger