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Solenvis SL91 MBUS level convertor repeater


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A signal processor controlled Level Converter from RS232 to M-Bus with remote powering and reading of up to 250 M-Bus devices.


  • RS232 interface
  • RS232 is fully transparent
  • Galvanic isolation between RS232C and M-Bus
  • All functions are controlled by a signal processor
  • Transmission rates: 300 .to 38400 Baud
  • Bit recovery (reproducing bit times)
  • Full bus extension according to M-Bus specification
  • Automatic measurement of maximum possible baud rate
  • Echo suppression
  • Switching off the bus upon short-circuit and overcurrent with automatic restart at the end of overcurrent
  • Device protection against transient overvoltages on the M-Bus1
  • Self protection against peak voltages (indirect lightning protection) on the M-Bus 1
  • Self protection against strong electromagnetic fields1
  • Collision detect with break signalling
  • LED´s for data transmission, maximum bus current and overcurrent / short-circuit
  • Power supplied by an external 42VDC plug-in power supply unit or wall-mounted power supply
  • The device is CE checked and has the CE mark
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