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Product image MG-IP800x800px_01.png


iSMA-B-MG-IP is designed to simplify the connection of meters installation with BMS. It is equipped with the most popular interfaces for M-Bus and Modbus meters, the meter gateway allows to handle up to 180 counters of various types simultaneously.

The M-bus interface allows to communicate and power up to 60 M-Bus meters, the maximum current can not exceed 130 mA.The RS485 interface allows to connect up to 128 Modbus devices.

The device can be configured using DIP switches, built-in web service and our tool iSMA Configurator.

Technical data


  • 12x screw connector max. 2,5 mm2 (18 – 12 AWG)
  • Direct connection for up to 6 M-Bus branches: 1x RS485 1x RJ45


  • ARM Cortex-M3


  • Interface Bus Master according to EN 13757-2
  • Interface RS485 half-duplex
  • 1x Fast Ethernet
  • Protocols: M-Bus and Modbus
  • M-Bus baud rate: 300 to 38400 bps
  • Modbus baud rate: 2400 to 115200 bps

Power supply

  • 24 V AC


  • Galvanic isolation: 3 kV AC/DC for all interfaces and power supply

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