The ZigBee miniature modules manufactured by AUREL

17 SEPTEMBER 2009

The TME Company has extended its offer with a series of miniature modules designed for wireless data transmission according to the ZigBee (IEEE 802.15.4) Standard and manufactured by the Italian company AUREL. The XTR-ZB1 modules are a good alternative to traditional wire-type solutions in case when a great number of scattered devices such as sensors or media consumption meters have to be connected in a network. These modules can be also applied in industrial and building automation, security and protection system or telemetry.
The XTR-ZB1 modules operate in the ISM 2,4 GHz public band using the proven transmission technique DSSS (Direct Sequence Spread Spectrum), which increases range and immunity to interferences. Reliability of the transmission is enhanced by typical for the ZigBee network mesh topology that ensures alternative ways for data in case of failure of any of network nodes and also a possibility of automatic switching of radio channels and quick network reconfiguration in case of occurrence of excessive interferences.
An additional protection against external interferences is ensured by a possibility to lock the network after a start up and tests, which guarantees reliable network operation even near other ZigBee networks. The security of data transmission is enhanced by automatic and transparent for user the AES encryption method with a 128-bit key.
Depending on structure of the ZigBee network there are available three basic types of modules: the coordinator XTR-ZB1-CLI, router XTR-ZB1-RLI and end device XTR-ZB1-ELI. The modules are the same in respect of hardware, they have only different software.
The modules have a form of small board 35 x 25 mm equipped with 22-ways connector. Communication with the master processor is ensured by the RS-232 serial interface with maximal transmission speed of 38400b/s that accepts the ASCII commands for network management and transmission of data packets. Additionally, the user has at his disposal 4 analogue inputs, 4 outputs and 3 digital inputs, interrupt input and several other lines for signalisation and control.
The XTR-ZB1-xLI modules have built-in the Planar Inverted F Antenna (PIFA) that ensures 0 dBm radiation power and -92 dBm sensitivity, which enables to obtain up to 70 metres range in the open air. The modules guarantee wireless transmission with the speed up to 250 kb/s. When supplied with 3,3V their current consumption is 28/33mA in the transmission/reception mode and only 1µA in stand-by mode. They can operate in ambient temperature from -40 to +85°C.
To facilitate and accelerate development works, the company offers also a starter kit that includes coordinator and router demonstration boards, a complete documentation and drivers and demonstration program for a PC.
For additional information see: www.tme.eu

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