Device and method for converting data sequences between fr...

H - Electricity – 04 – Q

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H04Q 11/04 (2006.01) H04L 12/56 (2006.01) H04L 12/66 (2006.01)

Patent

CA 2321210

A device for converting data sequences from the FR format to the ATM format and vice-versa has an FR communication module (PIM) for connecting to an FR communication link, an ATM communication module for connecting to an ATM communication link, a central computer (FP) for controlling the FR and ATM communication modules and a buffer memory (PSSM) connected over an internal communication link with the central computer (FP), the FR and the ATM communication modules. The communication data to be converted from the FR to the ATM format and vice-versa are temporarily stored in the buffer memory (PSSM) and the operation of the central computer (FP) is not interrupted by the data write/read processes into/out of the buffer memory. The converter thus achieves an increased transmission capacity.

L'invention concerne un dispositif pour la conversion de séquences de données entre le format à relais de trames et le format MTA, qui présente un module de communication par relais de trames (PIM) destiné au raccordement à une liaison de communication par relais de trames, un module de communication MEA, destiné au raccordement à une liaison de communication MEA, un ordinateur central (FP) servant à la commande des modules de communication par relais de trames MEA, et une mémoire tampon (PSSM) qui est reliée, par l'intermédiaire d'une liaison de communication interne, à l'ordinateur central (FP) et aux modules de communication par relais de trames et MEA. Les données de communication faisant la conversion du format à relais de trames en format MEA, et inversement, sont toujours soumises à un stockage intermédiaire dans la mémoire tampon (PSSM), le fonctionnement de l'ordinateur central (FP) n'étant pas interrompu pendant le processus d'introduction des données dans la mémoire tampon ou le processus d'extraction desdites données de la mémoire tampon. On obtient ainsi une puissance de transmission élevée du dispositif de conversion.

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