The signal converter SMI472-12 converts digital signals (operating and alarm messages) to serial output signals for the BMS bus. Its 12 digital inputs can be split into two groups as alarm or operating messages. Factory setting: 8 inputs for alarm messages and 4 inputs for operating messages.

  • Features
  • Applications
  • Accessories
  • Ordering information
  • Downloads
  • 12 digital inputs
  • Indicator LED for each channel
  • LEDs: Power On, ALARM, activities on the RS-485 interface
  • RS-485 interface (BMS bus)
  • Operating principle selectable: N/O or N/C operation.
  • converts digital signals to serial output signals for the BMS bus


Variants of SMI472-12

TypeSupply voltage USArt. No.
SMI472-12DC 77…286 V/AC 85…265 V, 50…60 HzB92047011
SMI472-1221DC 12,5…80 VB92047013

Downloads for SMI472-12



Category Product Language Date Size Download