Abstract: A device for transmitting data and/or signals between a first car body of a multi-member vehicle mechanically connected a second car body. The device includes an interface element having at least one optical fiber transmission medium for a line-connected communication system of the vehicle. The interface element displaceable in the longitudinal coupling direction relative to a coupling head of the first car body from a first position, wherein the interface element with the optical fiber is fully accommodated in the coupling head of the first car body, into a second position and vice versa, wherein in the second position of the interface element, at least the frontal end region of the interface element projects from the coupling head of the first car body to establish a data connection between the optical fiber and a contact terminal of a coupling head of the second car body.

Abstract: A plug connection for transmittal of electrical signals, including a housing; an insulating member to be arranged inside the housing and having a plurality of internally located conductors which are insulted from one another; wherein the insulating member includes an insulating member front part and an insulating member rear part; wherein the insulating front part can be connected mechanically to an insulating member front part of another plug connection and wherein the conductor of the insulating member rear part can be electrically connected to a cable. The conductors between the insulating member rear part and the insulating member front part in each case form a detachable electrical connection.

Abstract: A device for transmitting data and/or signals between a first car body of a multi-member vehicle mechanically connected a second car body. The device includes an interface element having at least one optical fiber transmission medium for a line-connected communication system of the vehicle. The interface element displaceable in the longitudinal coupling direction relative to a coupling head of the first car body from a first position, wherein the interface element with the optical fiber is fully accommodated in the coupling head of the first car body, into a second position and vice versa, wherein in the second position of the interface element, at least the frontal end region of the interface element projects from the coupling head of the first car body to establish a data connection between the optical fiber and a contact terminal of a coupling head of the second car body.