BR-LTE

LTE bridge for energy meters

Links energy meters with the data center over the LTE cellular network.

  • RS-232 · RS-485
  • LTE Cat-1
  • SNMP v2c/v3
Hardware LTE bridge for energy meters — BR-LTE

Many field devices — RTUs, analysers, meters — still speak over a serial port while the control center already runs on TCP/IP. This gateway bridges that gap: it turns RS-232 or RS-485 into a TCP connection over the LTE cellular network, without touching the protocol or modifying the existing equipment.

  • Protocol-transparent

    Converts serial traffic to TCP/IP without touching the protocol: compatible with IEC 60870-5-104, Modbus TCP, DNP3 and any encapsulated serial protocol.

  • Two independent channels

    Simultaneous RS-232 and RS-485, each with its own TCP port and configurable parameters.

  • Configuration without hunting for signal

    Web interface accessible from the unit's own WiFi access point, available even without an LTE connection.

  • Real remote management

    OTA firmware, SNMP agent with its own MIB, and automatic reconnection after network drops — no field visit required.

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01Technical specifications

Technical specifications

  • Serial ports

    • 1 RS-232 port, up to 115200 bps
    • 1 RS-485 half-duplex port, up to 115200 bps
    • Automatic DE/RE direction control on RS-485
    • Configurable baudrate, parity and stop bits per channel

  • Connectivity

    • Quectel EC200U-AUX Cat-1 LTE module (bands B2/B3/B4/B5/B8/B28)
    • Automatic APN detection by carrier
    • TCP server with 2 configurable ports (default 5000 and 5001)
    • 802.11 b/g/n 2.4 GHz WiFi with built-in configuration AP
    • Automatic reconnection after network drops

  • Protocols and remote management

    • Transparent to IEC 60870-5-104, Modbus TCP, DNP3 and any serial protocol encapsulated in TCP
    • SNMP v2c and v3 agent with private MIB
    • Remote (OTA) and local web-based firmware update
    • Persistent configuration in non-volatile memory
    • Web-based configuration and monitoring interface

  • Electrical and mechanical characteristics

    • ESP32-S3 processor, dual core 240 MHz
    • Power supply: 100-240 VAC
    • Maximum consumption: <5 W
    • Operating temperature: -20°C to +65°C
    • Relative humidity: 10% to 90% non-condensing
    • Dimensions: 60 x 80 x 31 mm
    • Hardware watchdog (30 s) and LTE connection-cycle watchdog

02Main applications

Main applications

  • Integrating serial-port RTUs and field devices with SCADA
  • Linking energy meters to the data center over LTE
  • Remote communication for network analysers and multimeters
  • Sites with no fixed network infrastructure (no fiber or ADSL)
  • Modernizing legacy equipment without replacing field hardware
  • Monitoring hard-to-reach sites with cellular coverage

Solutions using it

Where it is deployed

03Other products

Other products

Need this unit, or a variant of it?

We adapt inputs, outputs, protocols and operating logic to the requirement. Tell us what you need to solve.

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