Star Network Modem
E70-DTU(433NW30-ETH)_User Manual
Chengdu Ebyte Electronic Technology Co., Ltd.
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(3)As shown in Figure 13,one modem is set to TCP Server, local IP (for example: 192.168.4.22) and local port (for example:
12345), Set another modem to TCP Client, using network test tool to set the target IP address to 192.168.4.2,the IP and the
target port is same with the computer IP (8889).
Figure 13 Connection settings
The two modem of E70-DTU (433NW30-ETH) communicate with each other as shown in Figure 14, Working principle: The
client simulated by the network test tool sends data to the device TCP Server via Ethernet, and the TCP Server sends the data
to the TCP Client through the wireless network. The UDP Client sends the data to the server simulated by the network test
tool through Ethernet,and the reverse is also possible. No matter which one is the coordinator and node between the TCP
Server and the TCP Client.
