Westermo introduces Wi-Fi 7 access points for rail networks

Westermo is expanding its range of onboard rail connectivity solutions by introducing Wi-Fi 7 access points (802.11be) specifically designed for high-density passenger and operational networks. The Ibex-1520 and Ibex-3520 models are tailored for environments prone to interference, where operators require increased throughput without compromising safety and certification standards.

For readers of eeNews Europe, this development signifies a tangible shift of Wi-Fi 7 technology from theoretical enterprise plans to practical implementation in rolling stock design discussions. It also underscores the convergence of connectivity enhancements with certification processes, electromagnetic compatibility (EMC) considerations, and maintenance protocols within European rail fleets.

Enhancements offered by the Ibex-1520 and Ibex-3520

Both Wi-Fi 7 access points feature Multi-Link Operation capabilities and are optimized to accommodate a large number of clients, a crucial factor in areas such as passenger cars and crew compartments where multiple radios contend for bandwidth. The Ibex-1520 operates on dual bands (2.4 GHz and 5 GHz) with 2x2 MU-MIMO and can support up to 512 clients per radio. In comparison, the Ibex-3520 is tri-band, incorporating 6 GHz functionality and enabling up to 320 MHz channel bandwidth and 4096-QAM for enhanced data rates in densely populated scenarios. Additionally, Bluetooth 5.2 and GNSS capabilities are integrated, offering potential benefits for location-aware applications and asset tracking onboard.

Ruggedization, compliance with standards, and security emphasis

Westermo emphasizes that both devices are compliant with EN 50155 and EN 45545-2 standards, ensuring resilience against vibration, humidity, and electromagnetic interference commonly encountered in rail settings. The access points feature an IP66-rated metal enclosure, operational range from -40°C to +70°C, M12 connectors, and protective measures like a GORE-TEX membrane to mitigate internal condensation risks, as well as isolation mechanisms to safeguard against surges and overvoltage incidents.

In terms of security, the access points support WPA2/WPA3, 802.1X with RadSec, and maintain persistent security logs, running on Westermo’s IbexOS platform with regular security updates. From a deployment perspective, the company highlights applications such as passenger Wi-Fi provisioning, remote maintenance, data offloading, and integration with Train Control and Monitoring Systems (TCMS), suggesting that these Wi-Fi 7 access points could potentially enhance operational efficiency by ensuring more reliable onboard connectivity and reducing downtime.