The invention relates to a tactile man-machine interface comprising an interfacing surface comprising a means for transforming impacts on the interfacing surface into input electrical signals and a data interfacing means, configured for data communication with at least a first and a second device In this configuration, it becomes possible to provide data communication between the first and second devices without having to bring the two devices in contact. Furthermore, the invention relates to a separating element comprising such a tactile man-machine interface and system, such as vending machines, automatic teller machines etc, comprising such a separating element.