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ZigBee is a specification for a suite of high-level communication protocols using small, low-power digital radios based on the IEEE 802.15.4 standard for wireless personal area networks (WPANs). It is designed to be simpler and less expensive than other WPANs, such as Bluetooth or Wi-Fi. Primarily used in low-data rate applications that require long battery life and secure networking, ZigBee is a common choice in wireless control and monitoring applications. The types of ZigBee devices essential for forming a complete ZigBee network include:
1. ZigBee Coordinator (ZC):
– This device acts as the root of the network tree and bridges to other networks. There is exactly one ZigBee Coordinator in each network since it is the device that starts the network originally. It has the ability to store information about the network, including acting as the Trust Center & repository for security keys.
2. ZigBee Router (ZR):
– These devices act as intermediate routers, passing data from other devices. The ZigBee Router can participate in power conservation schemes as a part of its operation. Importantly, it can also act as a parent to end devices that are unable to relay data themselves.
3. ZigBee End Device (ZED):
– This device is designed to be extremely simple compared to the coordinator and routers, which allows it to be less expensive. An end device can communicate
A. i, ii, iii