02_Manuals: Contains the hardware description. "OEM-DES Devices Communication Protocol_4.63_EN.pdf" contains the communication protocol. But as this device used an Ethernet interface, you cannot directly use the standard Demo Software for the first steps. … You can either use the software in “07_TCP Test Tools” to send commands and see the results. Or use a software to convert the ethernet connection to a Virtual Com-Port (VCP) in “08_TCP-2-Serial Tools”. Then you can use the standard Demo Software in “06_Test_Demo Software”. … For configuration of the Ethernet interface you can use the built-in web interface or use the software in "05_Ethernet Configuration Software". The software can search for the device in your network.