A main frame supports a receiving-side connector to which a connecting-side connector is connected in movable manner toward inside. In doing so, at least a part of the system-wide unique individual addressing can be generated by the data carrier itself or by the distribution station with which the data carrier is connected. The size is made from non-branched and branched-chain fatty acids having main chain comprising 6-22 carbons linked with each other by saturated bonds. A blowdown exhaust line, separate from the exhaust line, directs blowdown exhaust gasses from the blowdown exhaust valve to drive the blowdown turbine, which drives a blowdown compressor.