Industrial Wireless


Moxa’s serial to IEEE 802.11a/b/g wireless ­device server

August 2014 Industrial Wireless

Moxa has released the NPort W2150A/W2250A series- RS-232/422/485 to wireless IEEE 802.11a/b/g device servers. The series allows secure data access with WEP/WPA/WPA2/802.1x encryption, consume only 2,4 W of power and supports wide temperature operation for environments ranging from -40 to 75°C, ensuring reliable performance for use in industrial automation such as warehouse AGV (automated guided vehicle) and CNC applications.

“For mission-critical applications, data loss when the wireless connection goes down is not acceptable. The NPort is designed with triple protection using three advanced technologies to provide uninterrupted wireless connectivity. Also, many customers are not aware of the fact that IEEE 802.11a uses the 5 GHz frequency and experiences significantly less RF interference when compared to IEEE 802.11b/g, which uses 2,4 GHz, the same frequency used by most consumer products,” says product manager Ryan Ma.

First, Moxa’s Fast Roaming technology increases the roaming speed to unify AP channels and reduce handover times to less than 500 ms. Also, the NPort W2150A/W2250A offers superior 3-in-1 surge-protection, which includes level 3 (2 kV) power line surge protection and level 2 surge protection for serial and Ethernet ports. Finally, the devices are designed to continue operating if the wireless connection is temporarily disconnected. If the wireless connection is restraining, or if the connection fails, serial data transmissions from the serial device will be queued in the built-in port buffer with over 10 MB of storage. As soon as the wireless connection returns to normal, the data stored in the buffer will be sent to its destination.



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