Multi-stage switching network in a telecommunication switching s

Details Multi-stage switching network in a telecommunication switching s Multi-stage switching network in a telecommunication switching s

1976-11-11

1978-06-13

Robinson, Thomas A.

179 18EA, H04Q 342, H04Q 352

Patent

active

040950557

ABSTRACT:
A multi-stage switching network in a telecommunication switching system includes a virtual link frame having fixedly closed virtual switches which are inserted according to the switching system size required by the application range of telephone traffic into a specified intermediate stage of the multi-stage switching network to permit the switching network of large or upper size to be degenerated to a switching network with smaller numbers of stages by degeneratively inducing a partial path structure from the path structure of the upper sized switching network having a great traffic capacity. The switching network with smaller numbers of stages can be incremented to a switching network of larger or upper size according to the switching system size. In either case, the multi-stage switching network can be controlled by the same control circuit and the same control program.

REFERENCES:
patent: 3867583 (1975-02-01), Dorazio, Jr. et al.
patent: 3963872 (1976-06-01), Hagstrom et al.

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