User manual

www.sainsmart.com

The 16-bit PAN ID is used in all data transmissions. The 64-bit PAN ID is used during joining, and

to resolve 16-bit PAN ID conflicts that may occur.

ZigBee defines three different device types: coordinator, router, and end devices.

Coordinator

Selects a channel and PAN ID (both 64-bit and 16-bit) to start the network

Can allow routers and end devices to join the network

Can assist in routing data

Cannot sleep--should be mains powered.

Router

Must join a ZigBee PAN before it can transmit, receive, or route data

After joining, can allow routers and end devices to join the network

After joining, can assist in routing data

Cannot sleep--should be mains powered.

End device

Must join a ZigBee PAN before it can transmit or receive data

Cannot allow devices to join the network

Must always transmit and receive RF data through its parent. Cannot route data.

Can enter low power modes to conserve power and can be battery-powered.

In ZigBee networks, the coordinator must select a PAN ID (64-bit and 16-bit) and channel to start

a network. After that, it behaves essentially like a router. The coordinator and routers can allow

other devices to join the network and can route data.

After an end device joins a router or coordinator, it must be able to transmit or receive RF data

through that router or coordinator. The router or coordinator that allowed an end device to join

becomes the "parent" of the end device. Since the end device can sleep, the parent must be able

to buffer or retain incoming data packets destined for the end device until the end device is able

to wake and receive the data.