Standardized mating faces form the basis for barrier-free networking of components, cables and connectors. Leading connector manufacturers are currently driving the development of a standardized mating face significantly. The developments range from IP20 to IP6x connectors. For industrial cabling in IP67, which is suitable for harsh field use, the mating face was developed according to IEC 63171-5. It is preferably intended for M8 connector systems in the senosoric sector. A mating face in accordance with IEC 63171-2 has been developed for control cabinet wiring in IP20. It enables double the port density compared to RJ45 interfaces due to its compact dimensions.