This modem is designed to work with the LZQJ-XC series of meters from Germany’s EMH metering GmbH & Co. KG. It uses proven 3G radio data transmission technology and can be installed easily in a special slot on the meter.


  • Dimensions (height × width × depth): 104.5 × 47 × 27.5 mm
  • IP protection rating: same as the meter’s IP rating following installation in a special slot
  • Power supply voltage: 18 V DC
  • Operating temperatures: -25 to +60°C
  • Sealing: communications connectors, power connector, SIM card slot and antenna connector
  • Clear status and signal level indications with LEDs on the front panel

Radio communications

  • 900/1800 MHz for CSD on 2G networks
  • 900/1800 MHz for GPRS/EDGE on 2G/2.5G networks
  • 900/2100 MHz for UMTS/HSPA on 3G networks


  • Support of TCP/IP, UDP/IP, ICMP, Telnet
  • Transparent handling of data from the serial interface
  • Powerful feature set to support electricity meters (including time synchronization and automatic protocol recognition)
  • Real-time clock with battery backup; clock synchronization via NTP or from the GSM
  • Remote and local hardware and software restart feature
  • Proprietary algorithms to monitor key quality metrics of the entire communication channel in TCP/IP mode and GSM mode: Link Control and GPRS Control
  • Device configuration access security controls
  • Internal event log
  • Built-in IP address filter to support whitelisting and blacklisting for inbound connections
  • Optional ability to send alerts when power is lost/restored (built-in power source)
  • Compliance with industry standards in terms of technical and security specifications


  • mini USB 2.0 configuration port
  • FME antenna port
  • SIM card slot (2FF USIM)

Additional features include:

  • RS-485 serial interface (RJ-12)
  • Potential-free input