Submultiplex transmission of alarm status signals for a time...

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

H - Electricity

04

J

363/22

H04J 3/12 (2006.01) H04J 3/06 (2006.01) H04J 3/14 (2006.01)

Patent

CA 1045731

ABSTRACT OF THE DISCLOSURE 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 "wink- ing" submultiplexer framing signal, and the other states transmit status information to control system alarm and restoral conditions.

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