Trunk control system

Details Trunk control system Trunk control system

H - Electricity

04

Q

344/29

H04Q 11/04 (2006.01) H04Q 3/545 (2006.01)

Patent

CA 1101971

TRUNK CONTROL SYSTEM ABSTRACT OF THE DISCLOSURE A trunk control system which permits use of substantially increased numbers of trunk circuits in a telephone switching system, at reduced cost, and with variability at will of the mix of the kinds of trunks which are provided. A group of trunk circuits are located on a printed circuit board, and are connected identically to a microprocessor mounted on the same card. The microprocessor controls the operation of each trunk circuit individually, converting it into the kind of trunk required. At the same time it is connected to the main system control processor whereby a substantially reduced back plane size is achieved over a system in which each trunk circuit is individually connected to the bus.

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