Atm switching system

H - Electricity – 04 – L

Patent

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Details

H04L 12/56 (2006.01) H04Q 11/04 (2006.01) H04J 3/06 (2006.01)

Patent

CA 2187876

A communication system comprising a hub slot adapted to receive any one of a plurality of hub cards for receiving and transmitting data cells a plurality of universal card slots a plurality of interface cards insertable into any one of said plurality of universal card slots for receiving incoming ones of said data cells containing data and transmitting outgoing ones of said data cells containing data; an add bus having respective data links connected between individual ones of said universal card slots and said hub slot for receiving said outgoing ones of said data cells from said plurality of interface cards and transmitting said outgoing ones of said data cells to said hub slot; a drop bus having a single data link connected between all of said universal card slots and said hub slot for transmitting said incoming ones of said data cells from said hub slot to said plurality of interface cards; and means within each of said interface cards for filtering said incoming ones of said data cells from said drop bus and thereby routing said data cells to an appropriate one or more of said plurality of interface cards.

Un système de communications comprend: un emplacement pour carte concentrateur destiné à recevoir n'importe quelle carte concentrateur pour recevoir et émettre des cellules de données; plusieurs emplacements universels de cartes; plusieurs cartes d'interface insérables dans n'importe quel emplacement universel de cartes destiné à recevoir des cellules de données entrantes contenant des données et émettre des cellules de données sortantes contenant des données; un bus d'addition doté de liaisons de données respectives connecté entre chacun des emplacements universels de cartes et l'emplacement pour carte concentrateur pour recevoir les cellules de données sortantes provenant des diverses cartes d'interface, et transmettre les cellules de données sortantes vers l'emplacement pour carte concentrateur; un bus d'élimination doté d'une seule liaison de données connectée entre tous les emplacements universels de cartes et l'emplacement pour carte concentrateur pour émettre les cellules de données entrantes provenant de cet emplacement pour carte concentrateur vers les diverses cartes d'interface; et un dispositif placé dans chaque carte d'interface destiné à filtrer les cellules de données entrantes provenant de ce bus d'élimination et acheminer ainsi ces cellules de données vers une ou plusieurs cartes d'interface appropriée(s).

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