Automatic path rearrangement for blocking switching matrix

Details Automatic path rearrangement for blocking switching matrix Automatic path rearrangement for blocking switching matrix

H - Electricity

04

Q

344/28

H04Q 3/68 (2006.01) H04Q 3/52 (2006.01)

Patent

CA 1176358

AUTOMATIC PATH REARRANGEMENT FOR BLOCKING SWITCHING MATRIX Abstract A method is described for rearranging signal paths in a three stage (primary, intermediate, tertiary) switching network to permit data or digitized voice signals to be transmitted from any given primary outlet to any given tertiary inlet. The intermediate stage has fewer inlets than the number of primary stage outlets and fewer out- lets than the number of tertiary stage inlets, making the network a conditionally blocking one. Two call re- arranging buses are provided to assure that each signal path being rearranged is maintained to prevent data trans- mission drop outs. Primary to intermediate and inter- mediate to tertiary paths are rearranged one at a time using the call rearranging buses to "move" free primary and tertiary links to a single intermediate matrix. RA9-79-011

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