Coupling system for a telecommunication exchange installation

Details Coupling system for a telecommunication exchange installation Coupling system for a telecommunication exchange installation

1979-04-05

1982-09-28

Brown, Thomas W.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

3408258, H04Q 352

Patent

active

043519857

ABSTRACT:
A coupling system for a telecommunication exchange installation is described having a plurality of interconnected binary switching matrices. Each switching matrix has at least two row and two column lines with means for connecting row lines to column lines. A plurality of connection lines form input and output lines for the system of interconnected switching matrix. The interconnection arrangement for the interconnected switching matrices is such that a row line of at least one multiple is connected to a row line of another multiple or a connection line. The other row line of the one switching matrix is connected to a column line of another switching matrix or to a connection line. One column line of the one switching matrix is connected to a column line of another switching matrix or to a connection line. The other column line of the one switching matrix is connected to a row line of another switching matrix or to a connection line.

REFERENCES:
patent: 3400220 (1968-09-01), Bowers
patent: 3480913 (1969-11-01), Sherstiuk
patent: 3546390 (1970-12-01), Hackenberg et al.
patent: 3593295 (1971-07-01), Joel, Jr.
patent: 3638193 (1972-01-01), Opferman et al.

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