An assembly of three telecommunications modules

An assembly (10) of three telecommunications modules (12, 14, 16) each having an equal number of contacts for connecting wires (18, 20, 28) therewith, comprises splitter circuits (30', 30"), the number of splitter circuits (30', 30") being equal to half of the number of contacts of each module (12, 14, 16), one third of the contacts (24, 74) of the assembly (10) being adapted to transmit a line signal, one third of the contacts (22, 72) of the assembly (10) being adapted to transmit a POTS signal, and one third of the contacts (26) of the assembly (10) being adapted to transmit a DSLAM-signal.A module, particularly for use within an assembly, is open at a side other than a front side, at which contacts are exposed, so as to allow at least one splitter circuit (30', 30") to be at least partially inserted into the module.