A system (400), in its receiver aspect (e.g. 402), interconnects a terminal link (451) to either a first autonomous link (421) or a second autonomous link (431) depending upon the error conditions on the first and second links. The second link redundantly propagates the same data stream as the first...http://www.google.fr/patents/US5577196?utm_source=gb-gplus-shareBrevet US5577196 - Intelligent digital signal hitless protection switch
Intelligent digital signal hitless protection switch
