z wave

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z wave basics

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Z-wave technology based devices operates in ISM band. It is developed for low bandwidth data communication applications such as security sensors, home automation, alarms etc. The following section mentions frequencies used in z-wave. It uses 868.42 MHz in Europe and 908.42MHz in USA. Following table-1 mentions basic features of z-wave technology widely used in IoT(Internet of Things) due to low power and low data rate. Z-wave protocol is developed by Sigma Designs, Inc. including encryption. Open source implementation of Z-Wave protocol stack known as open-zwave is also available but it does not support security layer. Z-wave PHY and MAC layer specifications are defined in ITU-T G.9959 standard. Specification z-wave support Standard ITU-T G.9959 (PHY and MAC) RF Frequency Range 868.42 MHz in Europe, 908.42 MHz in US Data rate 9.6, 40, 100 Kbps Maximum Nodes 232 Architecture Master and slave in mesh mode MAC layer CSMA/CA RF PHY modulation FSK (for 9.6kbps and 40 kbps), GFSK...
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