Duplex processor arrangement for a switching system

Details Duplex processor arrangement for a switching system Duplex processor arrangement for a switching system

G - Physics

06

F

354/230.82

G06F 9/46 (2006.01) G06F 15/16 (2006.01)

Patent

CA 1300753

A DUPLEX PROCESSOR ARRANGEMENT FOR A SWITCHING SYSTEM Abstract of the Disclosure The invention provides a duplex processor arrangement wherein the processors are only pseudo- synchronized to each other. Each processor is provided with its own independent clock circuit and the two clock circuits operate at the same nominal frequency. A circuit means is provided for periodically forcing a rendezvous between processors whereat a controller circuit ensures that the processors have processed the same information since the last rendezvous. Each processor comprises a match circuit including memory means connected to store address/data information related to instructions performed by the processors. Each match circuit compares the information from the processors and generates an alarm signal upon a mismatch. - i -

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