Broadband space-division switching network with linkage in a pri

Details Broadband space-division switching network with linkage in a pri Broadband space-division switching network with linkage in a pri

1989-12-11

1992-05-05

Stephan, Steven L.

Communications: electrical

Continuously variable indicating

With meter reading

340827, 361406, H04B 338, H01R 900

Patent

active

051112000

ABSTRACT:
In broadband space-division switching networks a multi-layer p.c. board is used for wiring the switching matrices of adjacent switching stages. In case of a plurality of links between the switching matrices a corresponding number of layers of the p.c. board can be provided. The connection of the individual layers of the p.c. board requires much expenditure in point of manufacturing engineering.
This expenditure can be reduced in a surprisingly simple manner, when a canonical linkage in a p.c. board is introduced such, that link sections of the switching matrix are fanned out into groups onto a layer of the p.c. board and combined again. By dividing the links into sections, requirements as regards equal line length, reduction of space required and replacement in case of defects can be met in a simple manner.

REFERENCES:
patent: 2963626 (1960-12-01), Du Val, Jr. et al.
patent: 3715443 (1973-02-01), Ishimura
patent: 3832603 (1974-08-01), Cray et al.
patent: 4417245 (1983-11-01), Melas et al.
patent: 4807280 (1989-02-01), Posner et al.

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