Submultiplex transmission of alarm status signals for a time div

Details Submultiplex transmission of alarm status signals for a time div Submultiplex transmission of alarm status signals for a time div

1974-02-14

1976-02-03

Robinson, Thomas A.

179 15BS, H04J 314

Patent

active

039366090

ABSTRACT:
A time division multiplex system includes a status channel as well as a plurality of information channels and a frame synchronization channel in each frame. A submultiplexer combines a "winking" framing pulse with four different status signals to derive a four-state code. One state of the code contains a "winking" submultiplexer framing signal, and the other states transmit status information to control system alarm and restoral conditions.

REFERENCES:
patent: 3542957 (1970-11-01), Mitchell
patent: 3689699 (1972-09-01), Brenig

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