The extremely compact PRV and PPV marshaling and distribution terminals combine all the advantages of a simple and secure signal processing system in process engineering and energy generation systems in the tightest of spaces. The “PUSH IN” connection method combined with the sturdy system housing guarantees interference-free signal transmission and the best ease of use. Easy navigation and location is achieved through a clearly labeled matrix and color coded operational elements. The extraordinary design links the technical features with a high connection density, and the effective, highly efficient handling characteristics.