Capacitors are connected in series across a DC power supply. The present invention provides a new human cytokine receptor designated as \u201cZcytor16. Along all or most of the first extent, the thread flanks are arranged with one or more grooves that can extend in the peripheral direction and can be situated on the second extents. Network packets may be linked or split up as necessary to make logical protocol specific commands. The coupling member is influenced axially by a conical clamping ring by cooperation with the conical surface in the first housing part and influences a resilient ring which causes sealing between the tube and the second housing part.