Abstract: A housing for receiving printed circuit boards whose components form at least parts of a communication system, comprising a housing cover and a connection area which is accessible from the outside. A main printed circuit board is arranged between the base housing part and a cover part. Plug-in devices for at least one extension printed circuit board are provided in an extension area of the main printed circuit board. A first hood is provided in order to cover the extension area. The hood has push-through openings arranged towards the connection area, corresponding to plug-in devices on at least one extension printed circuit board in an assembled state. The first hood can engage with the cover part by means of a lock connection whereby said lock connection can only be released using a tool.

Abstract: The invention relates to a screening device comprising: a screening cover, which covers an electronic circuit located on a printed circuit board and comprises an edge that is separated from the component side of the printed circuit board by a gap and a contact device, which is located in the gap and produces an electric connection between the screening cover and a conductive contour element on the printed circuit board. According to the invention, lugs are formed on the edge of the screening cover, said lugs fixing the screening cover on the printed circuit board and maintaining an elastic pretension on the contact device. The contact device is configured as an elastic sealing body that extends continuously through the gap and absorbs electromagnetic waves.