The PROFIBUS-PA is an open fieldbus standard (EN 50170, IEC 1158-2, DIN 19245). It was specifically designed for the requirements of process engineering, such as remote powering and intrinsic safety.
The PROFIBUS-PA T-connector in EEx (ia) specification is intended for direct coupling of measuring devices, sensors, actuators, etc. in potentially explosive areas.
The Fieldbus Foundation is an open fieldbus standard. It was specially developed for the requirements of process industry technology, including remote supply and intrinsic safety.
The FBCon fieldbus connectors are used in process automation, to set up different bus topologies such as line, tree or star based on the fieldbus systems.