Solution:

1. The default TCP port number is 5202 2. Please execute "cmd.exe" on Windows base to call out MS-DOS frame. see attachment 3. Please input "telnet 172.18.2.123 5202 " and click "enter" (ps. 172.18.2.123 is ADAM-4571/70 IP address) 4. At the same time, if the communication is good. There will be no any error message.