Digital loop carrier system

H - Electricity – 04 – L

Patent

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Details

H04L 5/00 (2006.01) H04J 3/08 (2006.01) H04J 14/08 (2006.01) H04L 12/20 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2109131

A telecommunication network which includes a SONET-based digital subscriber loop carrier system that supports wideband and narrowband services. The digital subscriber loop carrier system includes a digital subscriber loop carrier system having a common module for performing common functions of the system and for transferring subscriber data between the system and a central office or local digital switch, and at least one service definition module, which is coupled to subscribers, for interfacing the subscribers to the system. The common module and the service definition modules are coupled by a common backplane including pulse coded modulation buses and all data, including both subscriber data and control data, are transferred per the SONET protocol. Each of the common module and service definition modules employ buses, which are also based on the SONET protocol.

Réseau de télécommunication comprenant un système à courants porteurs SONET pour liaisons numériques d'abonnés, permettant la prestation de services à large bande et à bande étroite. Le système comprend un module commun pour l'exécution de fonctions communes du système ou pour le transfert de données d'abonné entre le système et un central ou un commutateur numérique local, et au moins un module de définition de service, couplé aux équipements des abonnés, pour assurer l'interface entre ces derniers et le système. Le module commun et les modules de définition de service sont couplés au moyen d'un panneau arrière commun comprenant des bus de modulation à codage par impulsions, et toutes les données, y compris les données d'abonné et les données de commande, sont transférées conformément au protocole SONET. Le module commun et les modules de définition de service emploient chacun des bus, également compatibles avec le protocole SONET.

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