ES420093A1 - A control system for switch meshes by space division. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

A control system for space division switching meshes, such as a mesh including dies and crossing points with four switching coils. Each coil belongs to a different category and is arranged in such a way that the coils of the same category of the different crossing points in a row or a column of a matrix plane are connected to form a row winding or a column winding, depending on the configuration of the crossing points. The switching of a crossing point occurs through four pulses or two pairs of pulses. The pulses of a pair have the same value and the four pulses are applied simultaneously to the coils of a crossing point. The system is characterized because, in each stage: - any winding is selected by means of two selection units when this winding is involved in the switching of a crossing point. The two winding selection units are connected, respectively, to a different end of said winding, one of them refers to the rank of rank or rank of column common to the crossing points whose coils form the winding in question, and the other refers to the value of the switching pulse applied to the winding, - any selection unit relating to a row rank or a column range is, on the one hand, common to two: windings formed, respectively, of coils of different category located, respectively, at the same points of a row in a plane of matrix. Said two windings are assigned to the range of said points and, on the other hand, common to each pair of coils that have an identical range in the different matrix planes of the stage, - any selection unit relative to a pulse value is assigned to only one matrix plane in one stage and is connected, for each associated selection unit, to one of the two windings that are connected to this range selection unit in the respective plane. (Machine-translation by Google Translate, not legally binding)