Bandwidth transfer switching system

H - Electricity – 04 – L

Patent

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Details

H04L 12/64 (2006.01) H04L 12/66 (2006.01)

Patent

CA 2360384

A bandwidth transfer switching system (100) connecting various customer devices (12a-g), including local area networks (44), from customer premises (42) through a local loop (50) to a telco central office (50), to deliver switched circuit traffic to central office switches (60) and data packet traffic to wide area networks (64), such as the Internet. Access concentrators (104, 140) are employed at the customer premises (42), remote concentrators (106, 140) and optional relay nodes (160, 140) are employed in the local loop (50), and transfer switches (108, 140) are employed in the central office (56). Copper wire lines (166) and fiber optic lines (168) are used to handle typical protocols such as POTS, E1/T1/xDSL, and SONET between the various transfer nodes (140).

L'invention concerne un système de commutation à transfert de bande (100) qui relie divers dispositifs d'abonnés (12a-g), y compris des réseaux locaux (44), des locaux d'abonnés (42) à un central de télécommunications (50) par une ligne d'abonné (50), de façon à assurer un trafic de circuit commuté vers des commutateurs de central (60) et un trafic de paquets de données vers des réseaux grande distance (64), tel l'Internet. Des concentrateurs d'accès (104, 140) sont utilisés aux installations d'abonnés (42), des concentrateurs à distance (106, 140) et des noeuds de relais facultatifs (160, 140) sont utilisés dans la ligne d'abonné (50), et des commutateurs de transfert (108, 140) sont utilisés au central (56). Des lignes de cuivre (166) et des lignes à fibres optiques (168) sont utilisées pour traiter des protocoles types tels que ceux du service téléphonique traditionnel, E1/T1/xDSL, et SONET entre les divers noeuds de transfert (140).

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