Abstract: The invention relates to an elastic coupling comprised of connecting flanges located on the drive input and drive output side as well as comprised of at least one rubber .body arranged between them. The invention proposes that the at least one rubber body contains silicic acid/silica as filler agent as well as dyeing pigments.

Abstract: A connecting plug for connecting an input/output unit to a machine control with a central bus, wherein the input/output unit is to be connected to a multi-strand electrical cable connected to a bus node, has a housing with a first plug connection for an incoming cable and a second plug connection for an outgoing cable. The incoming cable is looped through to the outgoing cable forming a looped-through cable. The housing has a connector for the input/output unit. An electronic device is arranged in the housing and connected to the connector. The connector is connected by the electronic device to the looped-through cable.

Abstract: A connecting plug for connecting an input/output unit to a machine control with a central bus, wherein the input/output unit is to be connected to a multi-strand electrical cable connected to a bus node, has a housing with a first plug connection for an incoming cable and a second plug connection for an outgoing cable. The incoming cable is looped through to the outgoing cable forming a looped-through cable. The housing has a connector for the input/output unit. An electronic device is arranged in the housing and connected to the connector. The connector is connected by the electronic device to the looped-through cable.

Abstract: A printed circuit board arrangement for printed circuits with electronic components has a first board having a first electric partial circuit and having a first edge formed as a first contact comb with successively arranged first projections and first cutouts. A second board having a second electric partial circuit and having a second edge formed as a second contact comb with successively arranged second projections and second cutouts is provided, wherein the second contact comb is configured to be complementary to the first contact comb. The first and second boards are combined to form a complete circuit with the first and second boards substantially positioned in a common plane. The first projections engage captively the second cutouts, and the second projections engage captively the first cutouts.