Universal cellular modem for industrial automation with RS232 and RS485 cable. Available for LTE Cat.1, 2G, 3G, 4G, LTE Cat.M and Cat.NB networks.

Wireless modem
Wireless access


All around the world mobile operators are shutting down 2G/3G networks in order to give way to 5G. Companies that operate smart meters with 2G/3G connectivity must plan the migration to the latest 4G LTE network which is well-positioned to dominate smart metering communication technologies in the upcoming years. The migration from GSM / UMTS to LTE has many advantages, for example, a shorter readout time due to the high-speed network with low latency.

Utilities have two options for migration: replace the meters or upgrade the modems within their routers! The 1st option comes with a high CAPEX, while the 2nd option is a future-proof solution that reduces TCO.

The modem is easily mountable on a DIN-rail and operates from a 230V external power supply.

The case design and interfaces meet the industry standards and the strict requirements of the large meter manufacturers.

This device allows us to connect all kinds of industrial measurement systems with a central server by creating a transparent data link between a local system and an IP address or HES.

The device offers remote access and configuration features.


Main features

  • Wireless module order options:
    • 4G LTE Cat.1 – 2G or 2G/3G “fallback”
    • LTE Cat.M / Cat.NB with optional 2G “fallback”
  • Design & connectivity meets with meter standards
  • Installable to any meter as universal, external modem
  • Power supply (AC) is required (optional DC can be used)
  • RS232 and RS485 port (connector outfit by order)
  • Transparent link / IEC 62056-21 protocol
  • Remote & safe firmware update and configuration
  • Supercapacitor option (for LastGASP SMS notification)
  • It can be mounted on a DIN-rail (order option)



Design and outfit

  • Installable to any meter as universal, external modem
  • RS232 interface connector options: D-SUB9 / RJ12
  • RS485 interface connector options: 2- / 4-wire / RJ12
  • AC power connector (for external mains) – optional DC
  • Supercapacitor option



  • Installable to any meter as universal, external modem
  • Industrial and measurement systems



  • Transparent data transmission to the HES
  • Optional CSData call (2G)
  • Immediate SMS notification (Last GASP alert of power outage)


Accessories (order options)

  • AC power connector
  • SMA antenna (50 Ohm)
  • DIN-rail adapter
  • WM-E Term® software (mass firmware updates, reconfiguration of settings)
    You can manage the device by Device Manager® software


    Technical data

    Industrial RS485 Modem

    Product Datasheet

    User Manual

    WM-E Term User Manual

    WM-E Term configuration tool

    Factory configuration file (for WM-E Term software)

    Parameter Description

    You may also like…


    4G LTE antenna with magnetic mount, SMA connection, 2.5m long RG174 cable, 6dBi max. gain

    DIN rail clip fastener (metal)

    DIN rail clip fastener – metal, with 1 drilled hole


    The remote management and maintenance of an IIoT solution can be a real challenge. Improve the network availability and operational efficiency of your fleet!

    Request quote

    We are using Google Analytics

    Please note that we use Google Analytics monitoring to analyze traffic and interests on our website, in order to provide an anonymous view of the distribution of visits.
    uses personal information - to make internal, marketing decisions (promotions, trends, visits to visiting companies). We don't send these data to third parties.
    Learn more about Google's privacy policy: www.google.com/analytics

    Please use the buttons below to enable if you accept use Google Analytics, or indicate if you do not enable it.