DOUBLE SELECTION CIRCUIT OF OPTICAL DATA LINK IN FULL ELECTRONIC SWITCHING SYSTEM

摘要

The present invention relates to the redundancy selection of the optical data link consisting of redundancy in the electron exchanger, and in particular to have the necessary minimum reframer (Reframer) so that the redundancy can be processed in real time without being affected by the redundancy transfer. A redundancy selection circuit for optical data links in an electronic switching system.;The duplex selection circuit of the conventional optical data link has a problem that the reliability of the service is high because there is a high possibility that an abnormal state of the service may be generated because the re-layer checks the error of the selected data and feeds it back.;By controlling the gating of the de-flip-flop with the clock signal in the optical data link composed of redundancy in the electronic switch according to the present invention, the selector is processed in real time without interruption of the service, and the gating time is longer than the leaframing time. Even with the minimum leaf reamer required, the system's reliability is improved.