The K4/D127-A2 part of Kraftberg is a type of module which is used to provide an interface between two different systems. It is a microprocessor-based module which is used to connect any two systems that work with different protocols. The module supports a variety of signal types such as RS485, Modbus, EtherCAT, Ethernet IP, and IEEE 802.15.4 / 6LoWPAN. Furthermore, it is equipped with a power input and output for 3.3V and +5V DC and has I/O capacity for connecting peripherals. Additionally, the module has a built-in secure bootloader, a web server for simple web-based configuration, and a remote access protocol for direct communication.