The EL6688 by Beckhoff is a communication module, which is designed for industrial use and is equipped with an RJ45 connector. It can be operated in a temperature range from 0 to 55 degrees Celsius and is IP20 rated. This module is suitable for applications such as centralized communication networks, industrial Ethernet networks, standard Ethernet networks, as well as WLAN and fiber-optic networks. It is also resistant to shock and vibration, making it suitable for use in harsher industrial environments. The EL6688 allows for communication between computers, PLCs and MCCs, as well as other communication-enabled devices, both in fieldbuses and in the Internet of Things (IoT).