Repeater apparatus having isolation circuit

H - Electricity – 04 – L

Patent

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Details

H04L 25/20 (2006.01) H04L 25/08 (2006.01) H04M 3/18 (2006.01) H02H 9/04 (2006.01)

Patent

CA 2225362

A repeater apparatus includes a first trunk circuit for receiving and sending data input from and to a first section of the communication link and a second trunk circuit for receiving and sending data input from and to a second section of the communication link. An Isolating circuit is connected to the first trunk circuit for electrically isolating the first section from the second section. For protecting against an overvoltage condition from the communication network, a protection circuit is operatively connected to the first and second trunk circuits. A controller has a first receiver/transmitter circuit for transmitting data from the first trunk circuit to the second trunk circuit, and a second receiver/transmitter circuit for transmitting data from the second trunk circuit to the first trunk circuit. The controller also produces a signal for indicating the completion of data transmission by the first and second receiver/transmitter.

L'invention est un appareil répéteur comportant un premier circuit de liaison servant aux transmissions bidirectionnelles de données avec une première section de la liaison de communication et un second circuit de liaison servant aux transmissions bidirectionnelles de données avec une seconde section de la liaison de communication. Un circuit d'isolement est connecté au premier circuit de liaison pour isoler électriquement la première section de la seconde. Un circuit de protection est connecté au premier et au second circuit de liaison pour les protéger contre les surtensions pouvant être occasionnées par le réseau de communication. Un contrôleur est doté d'un premier circuit émetteur-récepteur servant à transmettre des données du premier circuit de liaison au second, et un second circuit émetteur-récepteur servant à transmettre des données du second circuit de liaison au premier. Ce contrôleur produit également un signal servant à indiquer quand est terminée la transmission des données par le premier et le second émetteur-récepteur.

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