Passive distribution boxes, so called sensor-actor-systems, are used in all areas of industrial automation. They function as collector of sensor signals or as distribution panel for actor signals. All signals are connected to control unit by means of one cable. SKS designs and manufactures the whole product family of distribution systems for resellers in industrial automation. Several housing materials (plastics, zinc die casting, stainless steel) are used in according the application. A whole family of built-in connectors (M5, M8, M12) are additional placed at the disposal for this systems.