Industrial RS485 to 4G Gateway
Set Your Serial Data Free. Connect RS485 Devices to the Cloud, Wirelessly.

Short Description

Cut the cord and unlock the true potential of your industrial equipment. Our RS485 to 4G Converter is a powerful cellular gateway that seamlessly bridges the gap between your legacy RS485 devices—like sensors, PLCs, and meters—and modern cloud platforms. Deploy your monitoring and control systems anywhere there’s a cellular signal, without the cost and hassle of running Ethernet cables. It’s the simple, secure, and robust link for the Industrial Internet of Things (IIoT).

Key Features

Built for reliability in demanding environments:

  • 🌐 Instant 4G/LTE Connectivity: Get online fast. Just insert a SIM card, and your RS485 network is connected to your server or cloud platform, bypassing unreliable or unavailable WiFi and wired networks.

  • ⚡ Robust Industrial Design: Built to thrive where others fail. With a wide operating temperature range, DIN-rail mounting, and protection against power surges and ESD, this gateway is made for the factory floor, the utility cabinet, and the remote field site.

  • 🔒 Secure Data Transmission: Rest easy knowing your critical industrial data is protected with advanced encryption protocols (including VPN support), ensuring a secure tunnel from your device to your destination.

  • 🔧 Plug-and-Play Setup: We know your time is valuable. With a user-friendly web interface for configuration, you can have your Modbus RTU or other serial data flowing to the cloud in minutes, not hours.

  • 📊 Flexible Protocol Support: Works seamlessly with Modbus RTU, Profibus, and other custom serial protocols, making it a versatile solution for almost any industrial application.

  • 🔋 Always-On Reliability: Features like watchdog timers and auto-recovery ensure your connection remains stable, automatically rebooting if needed to maintain continuous data flow.

Technical Specifications At a Glance

  • Cellular Network: 4G LTE Cat-1 or Cat-4 (Global bands supported)

  • Serial Interface: RS-485 (2-wire)

  • Protocols: Modbus RTU over TCP, TCP/IP, UDP, MQTT, HTTP(s)

  • Security: VPN (OpenVPN, L2TP), SSL/TLS Encryption

  • Power Supply: 9-36V DC (Standard industrial power range)

  • Operating Temperature: -40°C to +75°C (Ruggedized for harsh environments)

  • Installation: Standard DIN-Rail Mount

  • SIM Card: Supports both standard and M2M SIMs

Where Will You Use It? (Application Section)

This gateway is the key to modernizing your operations:

  • Remote SCADA Systems: Monitor and control pumps, valves, and tanks in water/wastewater treatment and oil & gas.

  • Smart Agriculture & Environmental Monitoring: Track soil moisture, weather stations, and irrigation systems across vast fields.

  • Industrial Automation: Connect PLCs, CNCs, and energy meters on the factory floor for real-time performance dashboards and predictive maintenance.

  • Smart City Infrastructure: Remotely manage street lighting, traffic signals, and EV charging stations.

  • Vending Machine & ATM Telemetry: Get real-time sales, inventory, and status updates from distributed assets.

  • Renewable Energy: Monitor the performance and status of solar inverters and wind turbines in remote locations.

Why Choose Our RS485 to 4G Gateway? 

At Kavagie Smarttech, we understand that your industrial data is the lifeblood of your operations. With over 20 years of experience in custom embedded solutions and IoT devices, we’ve designed this converter not just as a product, but as a reliable partner for your digital transformation. We ensure robust performance, long-term stability, and the security you need to make critical decisions with confidence.

Frequently Asked Questions (FAQ)

  • Q: Do I need coding skills to set this up?
    A: No. The gateway is configured through an intuitive web interface. You simply set your server’s IP address, port, and serial parameters (baud rate, etc.).

  • Q: Can I use my existing mobile data plan?
    A: For permanent installations, we highly recommend a dedicated “Machine-to-Machine” (M2M) SIM card from your cellular provider for better reliability and data pricing.

  • Q: How do I get my data into the cloud?
    A: The gateway can send data via MQTT (most common for IoT platforms like AWS IoT, Azure, Ubidots) or directly to your server via TCP/IP.

  • Q: What if the 4G signal is weak at my site?
    A: The device has external antenna ports. You can connect a high-gain external antenna to significantly improve signal reception.