Data access arrangement

Details Data access arrangement Data access arrangement

H - Electricity

04

M

H04M 11/06 (2006.01) H04L 29/10 (2006.01)

Patent

CA 2225733

A digital access arrangement, coupled between a data terminal equipment having a transmit line and a receive line and tip and ring lines of a network, having a circuit that provides polarity check, hook/switch control, and data modulation functionality. The circuit includes a controller and six controllable switches, each having a conducting state and a blocking state.

L'invention se rapporte à une configuration d'accès numérique faisant l'objet d'un couplage entre un appareil terminal équipé d'une ligne de transmission et une ligne de réception d'une part, et les lignes "pointe" et "nuque" d'un réseau, d'autre part. Le circuit de cette configuration, qui permet d'assurer la vérification de polarité, la commande par crochet/interrupteur et la modulation de données, comporte un régisseur et six interrupteurs contrôlables, chacun pouvant être mis à l'état conducteur et à l'état de blocage.

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