Low-power embedded modem

29 April 2009 Telecoms, Datacoms, Wireless, IoT

Circuit Design recently developed and released a 434 MHz low-power radio modem, the MU-2-R.

The MU series are modems for embedding in industrial equipment.

They incorporate the RF circuit required for radio communication and a CPU for control, and data is exchanged with an external CPU using the UART serial interface. The MU-2-R is also supplied with an antenna. The modem also features FEC (forward error correction) employing the Reed-Solomon code which is used in satellite communications and compact disks. This ensures highly reliable radio communication even with a weak electric field or when burst noise is present.

Designed for narrowband FM and with high receiver sensitivity, the MU-2-R has a communication range of 600 m (line-of-sight) with the 10 mW output authorised for the ISM band. In addition, the built-in relay function enables wide-area telemetry systems and remote control applications covering several kilometres using battery-powered operation with 10 mW output.

For more information visit www.circuitdesign.jp

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