A guiding rail for guiding a door leaf between an open position and a close position in relation to a door opening in a wall, including: at least one guiding section with a guiding compartment, in which a sliding element of the sliding rail is movably accommodated, wherein the guiding section includes a guiding opening, through which a bearing axis of the sliding element exits at least partially from the guiding compartment, at which axis a lever element is rotationally movable supportable for establishing an operative connection between the sliding element and the door leaf, at least one functional section with a functional compartment, in which a transmission means is accommodated, which serves for transferring electrical energy and/or data between at least one wall-sided energy source and a door leaf-sided energy receiver, wherein a labyrinth guide is formed between the guiding compartment and the functional compartment for mechanically and/or electrically connecting the sliding element to the transmission means, characterized in that the labyrinth guide is disposed in such a manner at a distance to a longitudinal extension axis of the guiding opening that it is located outside an intrusion sector into the guiding compartment through the guiding opening, wherein the longitudinal extension axis extends orthogonally to the guiding opening and wherein the intrusion sector is defined: to what extent an eye can look into the guiding rail through the guiding opening, wherein at the sliding element of the guiding rail, a connecting element is positively and/or non-positively, preferably releasably connected, which is accommodated to be mobile in the labyrinth guide for mechanically and/or electrically, preferably reversibly connecting the sliding element to the transmission means, and/or in that the connecting element includes a plug-in connection for the transmission means, wherein the connecting element is longitudinally displaceably guided in the labyrinth guide and, during the movement of the sliding element within the guiding section, remains mechanically and/or electrically connected to the transmission means. at least one guiding section with a guiding compartment, in which a sliding element of the sliding rail is movably accommodated, wherein the guiding section includes a guiding opening, through which a bearing axis of the sliding element exits at least partially from the guiding compartment, at which axis a lever element is rotationally movable supportable for establishing an operative connection between the sliding element and the door leaf, at least one functional section with a functional compartment, in which a transmission means is accommodated, which serves for transferring electrical energy and/or data between at least one wall-sided energy source and a door leaf-sided energy receiver, wherein a labyrinth guide is formed between the guiding compartment and the functional compartment for mechanically and/or electrically connecting the sliding element to the transmission means, characterized in that the labyrinth guide is disposed in such a manner at a distance to a longitudinal extension axis of the guiding opening that it is located outside an intrusion sector into the guiding compartment through the guiding opening, wherein the longitudinal extension axis extends orthogonally to the guiding opening and wherein the intrusion sector is defined: to what extent an eye can look into the guiding rail through the guiding opening, wherein at the sliding element of the guiding rail, a connecting element is positively and/or non-positively, preferably releasably connected, which is accommodated to be mobile in the labyrinth guide for mechanically and/or electrically, preferably reversibly connecting the sliding element to the transmission means, and/or in that the connecting element includes a plug-in connection for the transmission means, wherein the connecting element is longitudinally displaceably guided in the labyrinth guide and, during the movement of the sliding element within the guiding section, remains mechanically and/or electrically connected to the transmission means.