This interface enables communication over several different protocols, with speeds up to 115.2 kbps. These protocols are RS232, RS485, RS422 & USB. The interface cards' functionality is programmed over the web interface


  • Multi protocol: RS232, RS485, RS422 & USB
  • Web based configuration
  • Speeds up to 115.2 kbps
  • Isolated from the output voltage, working voltage 1000 VDC
  • Floating with respect to earth


  • For SM3300 and SM15K series only, multiple INT MOD SER per unit possible
  • Installation in all slots possible
  • Combination with all other interfaces for SM3300 or SM15K series possible
  • Easy to plug in by user at site


  • Communication speeds (bps): 2400, 4800, 9600, 19200, 38400, 57600, 115200
  • 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 352.36 KB
Manuals Type/Format Size
Manual Interfaces SM3300 series pdf 634.66 KB
Manual Interfaces SM15K series pdf 1.2 MB