Wireless M-Bus Module WMB27-169

Product overview

The module complies with European wireless communication hardware testing standards. The size is only 30.0×21.6×3.5mm, which is convenient for users to integrate into user equipment. Support wireless M-Bus protocol N working mode, can work in slave, maser mode, can work in sleep mode with extremely low power consumption, and wake up through the serial port. When using, as long as the board is attached to the user board, it can be used through a simple communication interface protocol, which is simple and convenient.

Functional features

  • Support the N working mode specified in EN 13757-4:2013
  • 7 communication channels:
  • 6 channels with12.5KHz bandwidth, GFSK modulation mode, transmission rate of 2.4/4.8Kbps
  • 1 channel with 50KHz bandwidth, 4GFSK modulation mode, transmission rate of 19.2Kbps
  • Support six levels of transmit power
  • The line-of-sight transmission distance reaches 5000m
  • Provide UART communication interface
  • Parameter configuration through AT commands
  • Can get accurate RSSI value
  • The current power supply voltage value can be obtained through AT command
  • Capable of temperature detection
  • Low power consumption management, automatic sleep function
  • Encryption and decryption function
  • Support FOTA
  • Slave, Master functions
  • Technical ParametersView details

    Modulation method: GFSK, 4GFSK

    Working frequency band: 169.400 – 169.475 MHz

    Air rate: 2.4/4.8/19.2 kbps

    Serial communication rate: 2400/4800/9600/19200/38400/57600/115200bps

    Maximum transmit power: 27dBm

    Transmission harmonics: ≤-38dBm

    Receiving sensitivity: -108dBm @ 32.768kbps

    Working voltage: 2.2V~3.6V

    Current characteristics:

    Emission current: <550mA@27dBm

    Receiving current: <31mA

    Sleep current: <1.5μA

    Working temperature: -40ᵒC~+80ᵒC

    Working humidity: 10%~90% RH, no condensation

    Dimensions: 30.0(L)×21.6 (W)×3.5(H) mm

    Weight: 3.45g

  • ARM, automatic meter reading
    ARM, automatic meter reading

    ARM, automatic meter reading

  • Asset tracking
    Asset tracking

    Asset tracking

  • General ID and status transmitter
    General ID and status transmitter

    General ID and status transmitter

  • Home and building automation
    Home and building automation

    Home and building automation

Want to search for your favorite products more accurately? Click to proceed

Product Inquiry