[Introduction]：E180-DTU (ZG120-ETH) is a high-power ZIGBEE gateway, working as ZIGBEE node devices with adaptive network speeds (up to 100M, full duplex). It provides four working modes, i.e. TCP Server, TPC Client, UDP Server, and UDP Client. Two SOCKETs can work at the same time. There are four kinds of logical devices in a ZigBee network, coordinator, router, terminal device, and dormant terminal.