Industrial NMEA0183 RS485 to MQTT Broker converter with LTE and eSIM HD67C19-5-G43-E-B2

Industrial NMEA0183 RS485 to MQTT Broker converter with LTE and eSIM. HD67C19-5-G43-E-B2.

HD67C19-5-G43-E-B2 is an industrial communication converter designed to integrate devices using the NMEA0183 protocol over RS485 with modern MQTT Broker based IoT systems. The device is suitable for marine, navigation, telemetry and industrial applications where stable long-distance serial communication and remote data access are required.

The G43-E version is equipped with an integrated LTE modem supporting both a physical SIM card and an embedded eSIM. This ensures flexible and reliable connectivity in locations without fixed Ethernet infrastructure, while allowing continuous MQTT data transmission over cellular networks.

By combining NMEA0183 (RS485) with a built-in MQTT Broker, the converter enables mapping of serial data to MQTT topics and real-time publishing and subscription. Simultaneous support for Ethernet and LTE communication provides high flexibility for distributed and mobile installations.

Key features

• Conversion of NMEA0183 (RS485) data to MQTT Broker.
• Ethernet RJ45, LTE SIM and eSIM connectivity.
• RS485 data rates up to 115200 bps.
• Support for 10/100 Base-T Autosensing MQTT communication.
• Galvanic isolation between Ethernet interface and power supply.
• Wide operating temperature range from -40°C to +85°C.
• Industrial B2 Modulbox enclosure for DIN rail mounting.

Device configuration is performed using dedicated software SW67C19, which allows configuration of RS485 parameters, MQTT Broker settings and data mapping. The software is available for download at: download SW67C19 software .

Technical specifications

• Protocols: NMEA0183 (RS485), MQTT Broker
• Ports: 1× RS485, 1× Ethernet RJ45, SIM slot, eSIM
• RS485 data rate: up to 115200 bps
• MQTT data rate: 10/100 Base-T Autosensing
• Power supply: 8…24 V AC or 12…35 V DC
• Power connector: 2-way 5 mm terminal block
• Operating temperature: -40°C to +85°C
• Dimensions: 70 × 60 × 95 mm (D × W × H)
• Weight: approx. 200 g
• Mounting: DIN rail 35 mm
• Software: SW67C19
• Order code: HD67C19-5-G43-E-B2

HD67C19-5-G43-E-B2 is a robust solution for integrating NMEA0183 RS485 based systems with MQTT-driven IoT platforms, especially in applications requiring LTE connectivity and flexible eSIM support.

Need technical assistance or help selecting the right variant? Contact Consteel Electronics .