Telecommunication system including non-symmetric switching network

Abstract From the Canadian patent

A telephone central office switching system including a non-symmetric four stage (ABC+D) folded network and junctor circuits, whereby a communication path is established from a calling terminal over the four stage network through a junctor, circuit, and back over the four stage network to a called terminal. The junctors and associated C and D stage switching arrays (matrices) are arranged in ordered pairs related to the two sides of the junctors. Further, the ordered pairs are arranged in ordered pair groups to facilitate searching. The crosspoints of the switching arrays (matrices) comprise C-MOS driven J-FETs (FET packs) controlled and supervised by integrated circuit latch packs which …