H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
344/25
H04Q 11/04 (2006.01) H04Q 3/68 (2006.01)
Patent
CA 1287678
VPA 87 P 1089 US ABSTRACT OF THE DISCLOSURE Coupling circuitry for multistage coupling fields in telecommunications networks, especially time-muliplex telephone switching systems, with switching matrices and intermediate lines that connect them from coupling stage to coupling stage. The multistage coupling field has intermediate-line wiring wherein a number of intermediate lines extends in parallel in a group of intermediate lines from every switching matrix in the first coupling stage to every switching matrix in the second coupling stage, the number being large enough to prevent interior blockage even while multichannel connections are being established. The number of switching matrices in the second coupling stage is for this purpose one more than double the quotient, rounded off to a whole number, of the difference between the connecting lines connected to the input end of one switching matrix in the first coupling stage and the maximum number of connecting lines or intermediate lines to be seized per multichannel connection and the difference between the number of intermediate line per group of intermediate lines increased by one and the maximum number of connecting lines or intermediate lines to be seized per multichannel connection.
559185
Aktiengesellschaft Siemens
Fetherstonhaugh & Co.
Niestegge Gerd
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