Industrial NMEA2000 to MQTT Converter with VPN and LTE HD67C20-G43-VPN-B2

Industrial NMEA2000 to MQTT Protocol Converter with VPN.

HD67C20-G43-VPN-B2 is an industrial protocol converter designed to integrate NMEA2000 networks with modern systems based on the MQTT Broker protocol, with additional support for secure VPN communication. The device has been developed for applications requiring reliable data transmission, remote access and a high level of security in industrial and marine environments.

Communication interfaces and secure VPN connectivity

The converter supports the NMEA2000 protocol over CAN and enables data transmission to supervisory systems via Ethernet or LTE cellular network. The integrated VPN service allows the establishment of a secure communication tunnel, ensuring protected access to data without modifications to the customer IT infrastructure.

Typical applications

HD67C20-G43-VPN-B2 is used in marine automation systems, vessel monitoring, offshore installations, energy infrastructure, transportation systems and IoT applications where data from NMEA2000 networks must be transmitted securely to SCADA systems or cloud platforms using MQTT.

Hardware design and performance

The device is equipped with one CAN port, one Ethernet RJ45 interface and a SIM card slot, providing flexibility in selecting the communication medium. The NMEA2000 network supports data rates up to 1 Mbps, while MQTT communication operates at 10/100 Base-T with autosensing, ensuring stable and efficient data exchange.

Technical specifications

Service: VPN service
Ports: 1x CAN, 1x Ethernet, SIM card slot
CAN protocol: NMEA2000
Ethernet and LTE protocol: MQTT Broker
CAN connector: 3-way 5 mm screw terminal block
MQTT connector: RJ45 and SIM
NMEA2000 data rate: up to 1 Mbps
MQTT data rate: 10/100 Base-T autosensing
Power supply: 8–24 V AC or 12–35 V DC
Power supply connector: 2-way 5 mm screw terminal block
Operating temperature: from -40 to +85 degrees C
Dimensions: 70 x 60 x 95 mm (D x W x H)
Weight: approx. 200 g
Mechanical fixing: DIN rail mounting
Software: SW67C20

Configuration software

Device configuration and diagnostics are performed using dedicated SW67C20 software, which allows defining MQTT parameters, configuring the NMEA2000 network and managing data mapping and VPN connectivity. Download SW67C20 configuration software .

Secure NMEA2000 to MQTT integration

HD67C20-G43-VPN-B2 is an industrial-grade solution that bridges NMEA2000 networks with modern MQTT and IoT architectures, providing secure VPN communication, operational stability and high reliability in distributed applications.