Abstract: A system of distribution devices is disclosed. The housing of each distribution device has at least two physically and functionally separate functional regions. At least one first functional region is for connecting and/or storing data conductors. At least one second functional region exclusively for guiding data cables having the data conductors. When a plurality of such distribution devices are grouped next to one another and/or one above the other to form a system of a plurality of distribution devices, the functional regions which are used exclusively for guiding data cables having the data conductors form at least one cable guide channel, which extends continuously in the horizontal and/or vertical direction over a plurality of distribution devices.