Time division multiplexed pabx communication switching system

Details Time division multiplexed pabx communication switching system Time division multiplexed pabx communication switching system

H - Electricity

04

Q

344/25

H04Q 11/04 (2006.01) H04J 3/12 (2006.01) H04M 9/02 (2006.01)

Patent

CA 1069607

TIME DIVISION MULTIPLEXED PABX COMMUNICATION SWITCHING SYSTEM ABSTRACT OF THE DISCLOSURE A processor controlled communication switching system or PABX uses time division multiplexing with pulse width modulation of audio signals. Switching to establish communication paths between peripheral devices serviced by the system is distributed among the peripheral devices and controlled by command signals issued to the peripheral devices by a processor implemented common control. All peripheral devices transmit to the common control on a communication send line and receive signals from the common control on a communication receive line. The particular illustrated system services up to fifty two-way peripheral device ports and is inherently nonblocking.

273654

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