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Dual-RF wireless technology enables train-to-ground communications

18 January 2011

Moxa’s next generation AWK-6222 and AWK-5222 dual-RF wireless AP/Bridge/Clients were chosen to create train-to-ground communication networks in Sao Paulo, Brazil.

Industrial-grade WLANs are responsible for on-board video surveillance, passenger information systems, and train control, which are important components in ATO (Automatic Train Operations) and ATC (Automatic Train Control).

Wireless networks allow rail operators to share real-time information between trains, operations control centre, and stations, to provide immediate status updates and emergency controls. To counter the fact that the network is located above ground in a busy urban area, where there is a great deal of wireless interference, Moxa’s dual-RF modules, the AWK-5222 and AWK-6222 come with dual-band operations to allow the simultaneous use of two distinct channels to prevent transmission interference.

“Major concerns for wireless adoption in railway automation are reliability and security,” said Jackie Shi, senior manager of Moxa Industrial Wireless division. “Passenger safety and highly available connectivity are top priorities to create reliable and capable train-to-ground communications.

Moxa’s proprietary wireless redundancy technology has been designed for the railway industry and offers a full suite of industrial WLAN products with dual RF redundancy, fast Turbo Roaming, wide operating temperature, WPA/WPA2, IEEE 802.1X authentication, as well as EN50155 and EN50155/50121 certifications to provide outstanding wireless reliability and complete wireless network security for railway applications.”


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