A modular support column allows electrical signal- and power-transmitting lines between a data-processing device and an associated weighing device to be enclosed. The modular support column includes a foot module (5; 6), at least a primary pole module (10), at least one adapter module (20, 50), mechanical connector elements (70, 80) and fasteners (55, 75). The modular support column, when assembled, has a central axis (a) defining an axial direction. A first axial end (11) of the primary pole module is connected to the foot module which, in turn, is to a chassis base (4) of a weighing scale (3). A second axial end (12) is connected to the at least one adapter module. The mechanical connector elements and fasteners are also enclosed. Extension pole modules (40) and adapter modules (20, 50) can extend the modular support column.