Device for matrix switching
AssigneeTelefonaktiebolagot LM Ericsson (publ)
InventorSture Góste Roos
Life of this patent
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Abstract
A switching device selectively connects a number of incoming electrical lines with a number of outgoing electrical lines. The incoming and outgoing lines are each connected to individual contact surfaces, respectively. The contact surfaces are arranged in concentric ring-shaped areas. A maneuvering unit is arranged in the center of the ring-shaped areas. A driver rotates the maneuvering unit. A number of contact elements are positioned by the maneuvering unit, to obtain electrical contact between specific, contact surfaces.
Claims11
System for selective connection of a plurality of incoming electrical lines with a plurality of outgoing electrical lines, comprising a plurality of switching units each including:
- contact surfaces arranged in concentric ring-shaped areas on a surface of a printed circuit board,
- a maneuvering unit arranged in the center of said ring-shaped areas,
- a number of contact elements arranged on said maneuvering unit, and
- a driver for positioning said contact elements on said maneuvering unit to obtain electrical contact between selected contact surfaces,
- wherein said switching units are arranged on a printed circuit board that includes connections for electrically connecting said incoming and outgoing electrical lines and said switching units.
Dependencies are inferred from the claim text.