Switching distribution board

A switching distribution board, comprising:

• a number of m input contact pairs and n output contact pairs, it being possible for an input contact pair to be connected to any desired output contact pair by a mechanical switching mechanism, the mechanical switching mechanism being driven by at least one motor,
• wherein the input contact pairs are arranged on a ring structure, the input contact pairs extending in the longitudinal direction (L) so that a cylindrical structure results, elements in the form of a plurality of circular rings being arranged one above the other within the cylindrical structure, an element in the form of a circular ring being associated with each output contact pair, and it being possible for the element to be driven by the at least one motor in order to optionally connect an output contact pair to an input contact pair;
• and
• wherein a rigid mechanical holding structure is arranged within the cylindrical structure, on which holding structure the elements in the form of circular rings are arranged, it being possible for the elements in the form of circular rings to be connected to a drive shaft of the motor by means of a coupling.