System and method providing a separate control channel for a...

Details System and method providing a separate control channel for a... System and method providing a separate control channel for a...

H - Electricity

04

J

H04J 14/00 (2006.01) H04J 14/02 (2006.01) H04Q 11/00 (2006.01)

Patent

CA 2363572

A network (FIGURE 1) including a control channel source node (12(1)-12(N)) and a plurality of control channel destination nodes (12(1)-12(N)) is interconnected by communications media in the form of a ring. The control and control channel destination nodes transfer information over a plurality of channels using wavelength-division multiplex techniques. The control channel source node transmits control information to all of the control channel destination nodes over a unitary control channel, and each of the control channel destination nodes drains off a portion of the energy of the signal comprising the control channel to facilitate decoding and processing of the control information contained therein (FIGURE 2). Each of the aspects, the control channel destination nodes can also generate status information for transfer to the control channel source node over the control channel. The control channel source node drains off the energy of the signal comprising the control channel to facilitate decoding and processing of the status information contained therein (FIGURE 3).

L'invention concerne un réseau (FIGURE 1), lequel comprend un noeud source (12(1)-12(N)) à voie de commande et plusieurs noeuds destinataires (12(1)-12(N)) à voie de commande, et est interconnecté par des supports de télécommunications sous la forme d'un anneau. Le noeud source et les noeuds destinataires transfèrent des informations sur plusieurs voies à l'aide de techniques de multiplexage en longueur d'ondes. Le noeud source à voie de commande transmet des informations de commande à tous les noeuds destinataires à voie de commande, sur une seule voie de commande, chaque noeud destinataire tirant une portion de l'énergie du signal comprenant la voie de commande, afin de faciliter le décodage et le traitement des informations de commande contenues dans ce signal (FIGURE 2). En outre, dans chacun de ces aspects, les noeuds destinataires peuvent également produire des informations d'état destinées à être transférées au noeud source sur la voie de commande. Le noeud source tire l'énergie du signal comprenant la voie de commande, afin de faciliter le décodage et le traitement des informations d'état contenues dans ce signal (FIGURE 3).

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