RM-120 – M-BUS converter module

  • Supports up to 120 M-Bus devices per single bus
  • Power on the RS-232 communication port is not required
  • Galvanic isolation of RS-232 and M-Bus communication ports
  • Supports rates of 1200, 2400, 4800, 9600 bps
  • Built-in M-Bus short-circuit and over-voltage protection
  • 3 diagnostic LEDs
  • Detachable terminal blocks
  • Mounting on DIN rail
  • ABS housing
  • 24 months warranty period

The RM-120 converter module is used in installations where it is necessary to read object parameters from devices that support M-Bus communication (electricity and heat meters, PLCs). The MT-101 or MT-202 telemetry module provides wireless communication with distributed M-Bus nodes using packet-switched GPRS data transmission and SMS or e-mail alerting.

The RM-120 can handle up to 120 devices with available M-Bus slave protocol. In addition to the galvanic isolation of communication ports, the system also provides adequate protection against possible short-circuits and over-voltages on the M-Bus side.

  • Optoisolated serial port RS-232
  • Optoisolated M-bus interface (support upto 120 M-bus devices)
  • Diagnostic LEDs (power supply status, communication activity
  • Overvoltage and short-circuit protection on the M-bus interface
  • Power supply: 21,6-42 VDC
  • Removable terminal blocks
  • DIN rail mounting
  • ABS enclosure (IP40)
  • RS232 to Mbus converter dedicated for telemetry units
  • Support upto 120 M-Bus slaves
  • DIN rail mounting
  • Optoisolated serial ports and overvoltage and short circuit protection on the M-bus interface