Enhanced Integration

The Digital I/O Interface, an indispensable component for seamless integration of your power supply into automated systems. Equipped with 8 user inputs and 8 Open Collector outputs, it provides versatile control and monitoring capabilities to meet diverse automation needs.


This interface offers flexible programming options via Ethernet commands or sequences, ensuring effortless integration and simplified operation. Additionally, it features isolation from the output voltage, with a working voltage of 1000 VDC, and floating design for enhanced safety in operation.


Functionalities include hardware triggering of sequences, interaction with external equipment, and stand-alone automation capabilities, empowering you to tailor your automation setup to your specific requirements.


With its comprehensive features and robust design, our Digital I/O Interface is the ideal solution for optimizing your power supply for a wide range of automated applications, offering reliability, flexibility, and ease of use. See the data sheets below for more information.


  • 8 inputs
  • 8 Open Collector outputs
  • Programmable via Ethernet or sequences
  • Isolated from the output voltage, working voltage 1000 VDC
  • Floating with respect to earth


  • Hardware triggering of sequences
  • Interaction with other equipment
  • Stand-alone automation
  • For SM3300 and SM15K series only,
    multiple INT MOD DIG per unit allowed
  • Installation in all slots possible
  • Combination with other interfaces for SM3300 or SM15K series possible
  • Easy to plug in by user on site


  • 8 inputs Logic high: 2 - 30 V
  • 8 Open Drain outputs: 0 - 30 V, max. 200 mA
  • Insulation programming connector - internal circuits: 1000 VDC
  • Operating temperature: -20 to +50 ºC


  • Safety: EN 60950 / EN 61010

Dimensions and weight

  • Width: 25 mm
  • Height: 77 mm
  • Depth: 77 mm
  • Weight: 80 gr

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Data sheets Type/Format Size
Data sheet Interfaces SM3300 series pdf 371.39 KB
Data sheet Interfaces SM15K series pdf 353.74 KB
Product Manuals Type/Format Size
Manual Interfaces SM3300 series pdf 634.66 KB
Manual Interfaces SM15K series pdf 1.1 MB