Fuchs can recognize I/O requirements independently and automatically adapts to the required signal type. No hardware or software settings are required. The barrier can therefore replace various traditional modules. It is part of the supplier's "Termination Board" based "H-System". The barrier enables pre-wiring of the termination boards of the H-System without having to take the signal type into account. Once a system is in operation, using just one type of barrier simplifies maintenance and saves storage costs due to the reduced variety of parts. Configuration errors, for example due to confusion caused by the use of many different barriers, are eliminated.