H - Electricity – 01 – H
Patent
H - Electricity
01
H
379/113
H01H 1/16 (2006.01) H01H 67/26 (2006.01)
Patent
CA 1293073
ABSTRACT OF THE DISCLOSURE A switching device is disclosed for making or breaking electrical contact at a cross point among a plurality of cross points, which are arranged in a connection matrix with a plurality of incoming conductors (x) and a plurality of outgoing conductors (y) at each intersection point. An incoming conductor (x) and an outgoing conductor form a first and a second contact surface spaced from each other. The contact, which can be electrically conductive or non-conductive, is achieved by one or two balls which are moved with the aid of control means, e. g. a pin. In one embodiment for establishing contact between a plurality of incoming wire pairs (x, a, b) and a plurality of outgoing wire pairs (y, a, b) the balls are arranged in pairs in a plurality of cavities in a connection block and are moved to their respective positions with the aid of the pins and rods in the cavities. An operating means with lifting plates and combination plates for selecting which balls which are to be moved by the pins are described.
576954
Marks & Clerk
Telefonaktiebolaget Lm Ericsson
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