Three-stage coupling arrangement

Details Three-stage coupling arrangement Three-stage coupling arrangement

1987-04-02

1989-08-29

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

340825010, 361413, H04Q 1100

Patent

active

048621617

ABSTRACT:
The present invention relates to a three-stage coupling arrangement for an electrical data exchange system in which coupling matrixes of all stages are constructed identically. The coupling matrixes are divided among two switchboards. The number of inputs of a coupling matrix is equal to the number of its outputs and the inputs and outputs of the first switchboard are connected with the identically numbered inputs and outputs, respectively, of the second switchboard.

REFERENCES:
patent: 4536870 (1985-08-01), Bovo et al.
patent: 4654842 (1987-03-01), Coraluppi et al.
patent: 4679121 (1987-07-01), Schomers et al.
Commutation et Electronique, Nr. 49, Apr. 1975, Seiten 23-34, Paris, FR; P. Voyer et al.: "Reseau de Connexion Pour Grands Centres Temporels".
Telcom Report, Band 6, No. 2, Apr. 1983, Seiten 63-68, Passau, DE; B. Schaffer "BIGFON-Vermittlungs-und Verteiltechnik".
The Bell System Technical Journal, vol. 32, 1953, pp. 406-424; "A Study of Non-Blocking Switching Networks", Charles Clos, Oct. 30, 1952, Manuscript.

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