Moxa Wireless AP/Client Simplifies Retrofitting Trains for Carriage-to-Carriage Communication

Author photo: Chantal Polsonetti
ByChantal Polsonetti
Company and Product News

As intelligent trains become the norm, so is the need for high-speed IP-based train communication backbones. However, retrofitting older train cars is challenging due to upgrading limitations, including space Retrofitting Trainsand budget concerns. Physically wiring train carriages is also complicated, expensive and labor-intensive. 

To solve the retrofit problem, Moxa has incorporated new Auto Carriage Connection (ACC) technology in its AWK-3131A-RCC Series 802.11n wireless AP/client that enables intelligent wireless bridging between carriages, streamlining train coupling and decoupling. ACC technology automatically forms adaptive inter-carriage Wi-Fi bridges whenever the train composition changes, eliminating the need for additional carriage wiring. Each Access Point (AP) only needs to be configured once, meaning operators no longer need to manually reconfigure devices each time the train is recomposed. A timeout mechanism and directional antenna helps to prevent incorrect associations with neighboring train networks, especially in areas with multiple carriages, such as a depot or train yard.

The AWK-3131A-RCC is an ideal wireless solution for inter-carriage wireless backbone networks because it provides a faster data rate compared to 802.11g devices. It is also optimized for passenger Wi-Fi services and complies with a portion of the EN 50155 specifications covering operating temperature, power input voltage, surge, ESD, and vibration. In addition, the AWK-3131A-RCC Series can be powered via the PoE port for easier deployment.

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