ZIGBEE Gateway
Zigbee gateway provides access to TCP/IP network service for the user device with Zigbee function (such as Intelligent meter reading system etc.). It makes user devices without TCP/IP protocol proceed data communication with other network device on local area network and Internet. The Zigbee gateway can use TCP or UDP protocol and other network device communication. Figure 1 There are three kinds of logical device types in Zigbee network: telegon (centre node), router and terminal node. One zigbee network can include a telegon, several router nodes and several terminal nodes. This product can be set as different device types through parameter configuration.
As the first device of zigbee network, the telegon is the constructor of network. The telegon scan the exist network of RF environment and also select one channel and network ID to start network.
The router node have three functions: making other devices enter into network, making multi-level route network and help the communication of their terminal sub-node.
The terminal node do not take charge of maintain zigbee network. Therefore, it can sleep or wake up and the power consumption is quite lower.
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