Abstract: A communications module including an electrical interface for operatively connecting the communications module to an electric device is disclosed. The electric interface enables data communication between the communications module and the electric device in either a serial mode or parallel mode. The communications module includes: one or more electrical connectors arranged in the electric interface, a Dual Port RAM is connected to the electrical interface for providing parallel transfer of data through the electrical interface, and a control unit connected to at least one of the one or more electrical connectors, wherein the control unit is adapted to determine the value of one or more signals applied on the at least one of the one or more electrical connectors and enable either serial or parallel data communication through the electrical interface depending on the value of the one or more signals.

Abstract: The invention relates to an electrical module, comprising a first electrical interface, said module being attachable to an electrical device for connecting said first electrical interface to said device. The electrical module is characterised by at least one locking device adapted to prevent movement of said module in relation to said electrical device in at least one direction, said locking device comprising a first part which is movable along a first axis and a second part which is turnable about a second axis, the second part being movable to a locking position by turning about said second axis in response to linear movement of the first part along said first axis, said second axis having an extension which is different from the extension of said first axis, and said second part being adapted for engagement with said electrical device in said locking position.