The two pictures below show a main headend in a loft area (top) and a sub-headend within a riser cupboard serving apartments on one floor of an apartment building.
This main headend shows analogue terrestrial converters on the left, digital terrestrial converters on the right with satellite IF in the centre.
One of several sub headends fed from the main headend, shown above. The flat feeds can be seen on left of lowest component.
An example of a headend feeding a small block of 18 flats with one line each.