Interbus-S is an inexpensive way to network sensors and actuators with all standard automation instruments. The twisted two-conductor conductor is used as a standard transfer medium. This bus system replaces the expensive parallel cabling for the different signal types in the lower levels of automation technique and combines the cables in a single bus cable. Interbus components are connected with this long-distance BUS cable. The cable with halogen free jacket is used for outdoor applications and in the food-industry.