Optical fibre communications system

H - Electricity – 04 – J

Patent

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Details

H04J 14/02 (2006.01) H04B 10/20 (2006.01)

Patent

CA 2070815

An optical fibre communications system includes an exchange (E) and a plurality of subscriber lines (1). The exchange (E) provides a plurality of services in different subcarrier frequencies (6, 8, 9, 10). Each subscriber line (I) is provided with terminal apparatus (5) operable at different subcarrier frequencies, and a control (11) at the exchange (E) tunes the terminal apparatus to transmit and/or receive on a particular frequency in response to a request. The request may be a signal from the terminal apparatus (5), or an incoming service request addressed to the particular terminal apparatus.

L'invention est un système de communication à fibres optiques comportant un central (E) et une pluralité de lignes d'abonnés (I). Le central (E) fournit une pluralité de services à différentes fréquences de sous-porteuse (6,8,9,10). Chaque ligne d'abonné (I) est dotée d'un appareil terminal (5) pouvant fonctionner à différentes fréquences de sous-porteuse et un contrôleur (11) installé au central (E) syntonise l'appareil terminal pour l'émission et/ou la réception de signaux à une fréquence particulière en réponse à une demande. Cette demande peut être un signal provenant de l'appareil terminal (5), ou une demande de service adressée à ce terminal.

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