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Exploring the Advantages of the Bivocom TR321 Industrial IoT Router for Smart Applications

  • Apr 11
  • 3 min read

The rise of smart applications in industries such as digital signage, vending, and IP camera systems demands reliable, secure, and flexible connectivity solutions. The Bivocom TR321 industrial IoT router answers this need with a compact design and a rich set of features tailored for industrial environments. This post explores how the TR321 router supports smart applications by combining advanced communication technologies, secure networking, and flexible deployment options.


Close-up view of Bivocom TR321 industrial IoT router mounted on a DIN rail
Bivocom TR321 industrial IoT router mounted on DIN rail

Compact Design Built for Industrial Environments


The TR321 router stands out for its compact size, making it easy to embed within enclosures of onsite devices. Whether mounted on a DIN rail or attached to a wall, the router fits seamlessly into existing setups without requiring large spaces. This flexibility is crucial for applications like kiosks, digital signage, or smart grid equipment, where space is often limited.


Its rugged design ensures durability in harsh industrial conditions, supporting continuous operation in environments with temperature fluctuations, dust, or vibration. This reliability reduces downtime and maintenance costs, which is essential for critical infrastructure such as HVAC systems or air compressors.


Versatile Connectivity Options


The TR321 supports multiple communication standards, including 4G LTE and optional LTE CAT M1/NB-IoT. This variety allows users to select the best balance between data speed, coverage, and cost depending on their application needs. For example:


  • Digital signage may require higher bandwidth for streaming content, benefiting from 4G LTE.

  • Smart meters or sensors in a smart grid can use LTE CAT M1 or NB-IoT for low power consumption and extended coverage.


The router includes two RJ45 Ethernet ports and serial ports (1 RS232 and 1 RS485), enabling connection to a wide range of industrial devices. This combination supports legacy equipment and modern IP-based devices, making the TR321 a versatile hub for data collection and transmission.


Secure and Flexible Networking


Security is a top priority in industrial IoT deployments. The TR321 offers multiple VPN protocols such as IPsec, PPTP, L2TP, GRE, and OpenVPN. These options allow users to establish secure tunnels to remote servers, protecting sensitive data from interception or tampering.


The router also supports common industrial communication protocols like Modbus RTU/TCP, MQTT, SNMP, RIP, and OSPF. This compatibility facilitates integration with existing monitoring and control systems, enabling seamless data exchange and network management.


OpenWRT-Based Operating System for Customization


The TR321 runs on an OpenWRT-based operating system, which is well-known for its flexibility and open-source nature. Engineers and developers can customize the router’s firmware using C/C++, Python, or LUA programming languages. This capability allows tailoring the router’s functionality to specific project requirements, such as:


  • Custom data processing or filtering before transmission

  • Specialized security measures or logging

  • Integration with proprietary protocols or cloud platforms


Note that Python and LUA support require customized hardware and firmware, which can be arranged based on project scope.


Eye-level view of TR321 router connected to industrial equipment with Ethernet and serial cables
TR321 router connected to industrial devices via Ethernet and serial ports

Real-World Applications and Benefits


The TR321 router has proven valuable in various industrial IoT scenarios:


  • Digital Signage and Kiosks: Reliable 4G connectivity ensures uninterrupted content delivery in public spaces. The compact design allows easy installation inside kiosks.

  • Vending Machines: Secure VPN connections protect transaction data, while serial ports connect to payment and inventory systems.

  • IP Cameras: Stable LTE connections support remote video streaming and monitoring, even in locations without wired internet.

  • Smart Grid Devices: Compatibility with Modbus and MQTT protocols enables smooth integration with meters, reclosers, and switchgear for real-time data collection.

  • HVAC and Air Compressors: Remote monitoring and control improve maintenance efficiency and reduce downtime.


The router’s cost-effective design makes it accessible for projects with tight budgets without sacrificing essential features.


Installation and Deployment Flexibility


The TR321’s mounting options simplify deployment in diverse environments. DIN rail mounting suits industrial control cabinets, while wall mounting fits kiosks or outdoor enclosures. This flexibility reduces installation time and costs.


Its compact footprint also means it can be embedded directly inside devices, protecting it from environmental hazards and unauthorized access.


Summary


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