Multiplex communication system

Details Multiplex communication system Multiplex communication system

H - Electricity

04

J

363/10

H04J 3/08 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 1299780

ABSTRACT OF THE DISCLOSURE A multiplex communication system including a plurality of exchanges and multiplex communication apparatuses connected to at least one exchange through a plurality of lines. Each of the multiplex communication apparatuses comprises first registers for storing first selection number information from the lines and second registrers for fetching and storing second selection number information from associated one of the exchanges, and is arranged such that a CPU of the associated communication apparatus determines that the exchange is to perform its interrupting operation and controls to cause encoder and decoder means to be switched to its through mode when the first selection number information stored into the first registers coincides with the second selection number information stored into the second registers.

569827

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