Subscriber equipment for telephone exchange

H - Electricity – 04 – B

Patent

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379/57

H04B 1/58 (2006.01) H04M 3/00 (2006.01) H04Q 1/30 (2006.01)

Patent

CA 1074935

PRECIS DE LA DIVULGATION: L'invention concerne un équipement destiné à remplacer les équipements à translateur ou à transformateur, dans les centraux téléphoniques, en particulier. Il comporte un circuit d'alimentation de ligne téléphonique constitué par deux sources de tension, un hacheur, un redresseur doubleur de tension, un circuit de limitation de courant; un circuit de détection de boucle constitué par les éléments, et enfin des circuits de réception et d'émission reliés au central téléphonique.

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