IoT Gateway for Construction Site Connectivity
Highlights
✔ Construction sites require connectivity for many pieces of on-site equipment, but the harsh conditions can take a physical toll on the networking devices providing that connectivity.
✔ The solution to this challenge is deploying industrial, rugged devices: Teltonika’s TRB246 IoT gateway and TSW304 unmanaged switch.
✔ This industrial-grade duo features robust functionality and compactness, quick and easy installation, and high durability that’s perfect for IoT solutions in a rugged construction environment.
The Challenge – Construction, Vibration, Dust
As industries increasingly rely on smart technologies in pursuit of efficiency and optimisation, they encounter new challenges to overcome. And challenges raised by smart technologies are best solved with even smarter ones.
Consider construction sites, for instance – a hotspot of heavy machinery and automated systems if ever there was one. Aside from the drills, cranes, and vehicles synonymous with construction, these sites are full of smaller equipment.
These include CCTV systems, automated bar gates, RFID readers, diesel generators, and an Internet connection for personnel to use for management purposes. All of them, without exception, require connectivity.
Also, construction sites generate a fair bit of high-amplitude vibration from engines and heavy machinery, imposing mechanical stress on all on-site equipment.
Construction sites are also notorious for generating significant quantities of airborne dust and particulate matter, produced by cutting, drilling, demolition, and the movement of heavy vehicles across unpaved ground.
This dust can infiltrate networking equipment, clogging cooling vents, coating internal components, and causing overheating or short circuits over time. Fine silica particles, common on construction sites, are especially abrasive and can degrade connectors and moving parts.
In a construction site, the various threats to the device are omnipresent. This means that networking devices providing Internet must be ready for such environments.
Topology

The Solution – Industrial IoT Connectivity Devices
Providing connectivity in this industrial IoT solution are Teltonika’s TRB246 IoT gateway and TSW304 DIN rail switch.
The key here is that the TRB246 has a single RJ45 port, and yet this single IoT gateway provides connectivity to all stationary equipment. This is achieved by deploying a fleet of TSW304 4-port switches that can connect to end equipment and to other switches, with only one of these unmanaged switches connecting to the IoT gateway.
This is a more affordable method of accomplishing the same goal: all end equipment connected within a single network. To ensure that this network remains uninterrupted, the TRB246 features dual SIM slots with auto-failover and a backup WAN.
As the TSW304 4-port switches are the ones installed in a variety of locations around the construction site, it’s vital for their installation to be as quick and easy as possible. This plug-and-play Ethernet switch is extra compact, measuring only 102 x 25 x 81.5 mm and featuring an integrated DIN rail bracket and surface mounting.
The TRB246 is not too dissimilar, measuring 83 x 25 x 74.2 mm and having DIN rail, wall, and flat surface mounting options. This IoT gateway also has other interfaces in addition to its single RJ45 port, including RS232, RS485, and three digital I/Os – giving it flexibility in connecting to both modern and legacy industrial equipment.
Further bolstering this flexibility is this industrial gateway’s support of a wide range of key industrial protocols, including Modbus TCP and RTU, BACnet, MQTT, and many others. It also supports key VPN services, such as Stunnel and ZeroTier, on top of a robust suite of security features safeguarding its network.
It is important to note that the TRB246 is compatible with Teltonika’s Remote Management System (RMS). This enables not only remote troubleshooting and firmware updating of this cellular gateway but also opens the door to IoT remote monitoring and real-time data transmission from the end equipment that the TRB246 provides connectivity to.
Crucially, both the TRB246 IoT gateway and TSW304 unmanaged switch are built to withstand the harsh realities of a construction site environment. Their industrial-grade aluminium housing shields internal components from the dust and vibration, while their wide operating temperature range of -40 °C to 75 °C ensures reliable performance regardless of outdoor conditions.
Don’t let anything disrupt your construction site’s connectivity – deploy the TRB246 IoT gateway and TSW304 4-port switch and keep things running smoothly. Contact our specialists today!

Aistė M.
Creative Content Manager
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