As rail systems advance, trains are equipped with an increasing number of intelligent onboard devices—including CCTV, passenger information systems (PIS), and various passenger-centric technologies. To streamline operations, these subsystems must be consolidated onto a unified Ethernet infrastructure. CCTV applications in particular generate multiple high-resolution video streams and rely on bandwidth-intensive endpoints such as NVRs and wireless access points, driving the need for a stronger, faster network backbone.

With growing demand for PoE to power onboard IP cameras and other devices, operators require high-speed Ethernet solutions. Moxa delivers a comprehensive portfolio of wired and wireless networking products engineered for high-bandwidth onboard communications and reliable train-to-ground data transfer, addressing the evolving digital requirements of next-generation rail systems.

Each onboard subsystem serves a specific operational purpose, yet all must communicate seamlessly over a unified backbone network. A resilient Ethernet Train Backbone (ETB), supported by interconnected Ethernet Consist Networks (ECN), is essential for integrating these systems. Typically, CCTV infrastructure is deployed within the ECN, enabling live video streaming to the driver cab and continuous IP-based recording. This information is then transferred to the remote OCC via cellular or Wi-Fi transmission.

Moxa’s onboard Ethernet switches are engineered to build stable, intelligent train networks that support real-time surveillance, passenger information services, and consistent operational efficiency.

Moxa’s onboard switching solutions simplify network deployment, reconfiguration, and long-term maintenance. Train consists are frequently rearranged during operations, which traditionally requires reconfiguring ring coupling each time new cars are added. Moxa’s Dynamic Ring Coupling™ (DRC) technology automates inter-consist redundancy without affecting the internal network, ensuring uninterrupted performance for mission-critical applications such as CCTV, onboard Wi-Fi, and PIS.

For modernization and retrofit projects, Moxa’s Auto Carriage Connection (ACC) technology enables wireless inter-car links, significantly minimizing the need for physical cabling. Additionally, Auto Configuration functionality automatically assigns IP parameters to network devices, drastically reducing setup time—especially valuable for mass-scale deployments across large fleets.

Cellular and Wi-Fi technologies are rapidly becoming the standard for train-to-ground (T2G) communication. Many operators utilize hybrid LTE and Wi-Fi strategies to manage data transmission across varying operational scenarios. While in motion, trains rely on cellular networks to maintain smooth handover between regional carriers, ensuring uninterrupted streaming and real-time monitoring. Upon entering stations or depots, the system switches to Wi-Fi to offload stored video files and operational data, helping reduce mobile carrier costs.

Moxa provides a wide selection of industrial-grade Wi-Fi and cellular solutions built to ensure consistent, secure, and high-throughput train-to-ground connectivity.