HD67C25-G43-B2 SNMP Agent to MQTT Broker Converter with LTE DIN Rail

Industrial SNMP Agent / MQTT Broker converter with LAN and LTE (SIM) connectivity, type B housing, DIN rail mounting.

HD67C25-G43-B2 is an industrial communication converter designed to integrate systems operating in SNMP environments with infrastructures based on MQTT Broker. The device works as an SNMP Agent, making internal data available to SNMP Managers while simultaneously managing MQTT topic communication.

The device is equipped with an Ethernet RJ45 port and LTE connectivity via SIM card, enabling operation in both local networks and remote installations without fixed wired infrastructure. This makes HD67C25-G43-B2 suitable for industrial automation, energy systems, telecommunications and distributed monitoring applications.

According to the official technical documentation :contentReference[oaicite:1]{index=1}, the device provides:

• Electrical isolation between Ethernet and power supply
• Wide power supply range 12…35V DC and 8…24V AC
• Wide operating temperature range -40°C to +85°C
• DIN rail mounting (35 mm)
• Industrial Modulbox 4M housing type B

These characteristics ensure reliable performance in demanding industrial environments.

The HD67C25-G43-B2 allows:

• Operation as SNMP Agent
• Publishing and subscribing MQTT topics via embedded MQTT Broker
• Definition of allowed MQTT clients
• Configuration of published and subscribed topics
• Forwarding topics through the internal bridge

SNMP and MQTT communications support 10/100 Base-T Autosensing.

The device includes four diagnostic LEDs:

• Device state (green)
• SNMP communication (yellow)
• MQTT Broker communication (yellow)
• Error state (yellow)

A dedicated Recovery button allows restoring the device in case of firmware errors or incorrect configuration.

The Ethernet port is used for programming the device and for SNMP and MQTT communication. The LTE module uses a Micro-SIM card and an external antenna with SMA Male connector. The device features separate MAC addresses for SNMP and MQTT communication.

Configuration:

The HD67C25-G43-B2 is configured using the dedicated SW67C25 software. The configuration tool allows you to:

• Define MQTT parameters
• Define SNMP line parameters
• Configure allowed MQTT clients
• Define MQTT topics published and subscribed
• Configure internal topic forwarding
• Update device firmware

Technical Specification:

• Protocol: SNMP Agent
• MQTT: Embedded MQTT Broker
• Connectivity: LAN + LTE (SIM)
• Data rate SNMP: 10/100 Base-T Autosensing
• Data rate MQTT: 10/100 Base-T Autosensing
• Power supply: 8…24V AC / 12…35V DC
• Operating temperature: -40°C to +85°C
• Dimensions: 70 x 60 x 95 mm (DxWxH)
• Weight: approx. 200 g
• Mounting: DIN rail
• Software: SW67C25
• ORDER CODE: HD67C25-G43-B2

SW67C25 software for HD67C25-G43-B2 DOWNLOAD

Manufacturer warranty: 24 months

HD67C25-G43-B2 is a professional solution for integrating SNMP-based infrastructures with MQTT-based Industrial IoT systems. By combining SNMP Agent functionality with an embedded MQTT Broker and LTE connectivity, the device enables flexible and scalable data exchange between traditional monitoring networks and modern cloud-based architectures.

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