Interconnection unit (1) for transferring signals between board connectors P1, . . . , Pn for receiving printed circuit boards, situated on the front part of the interconnection unit, and cable connectors C1, . . . , Cm for receiving cables. The cable connectors C1, . . . , Cm are located on the upper front part and on the lower front part of the interconnection unit (1), such that the board connector P1, . . . , Pn are located in the central part of the interconnection unit (1). Thus, the board...