Relay matrix for selector networks

Details Relay matrix for selector networks Relay matrix for selector networks

1975-05-29

1976-11-23

Robinson, Thomas A.

H04M 300

Patent

active

039938719

ABSTRACT:
A relay matrix, especially a reed relay matrix for selectors in telephone exchanges, consists of a crossing point network, i.e. relays arranged in rows and columns constituting switching elements of speech paths, control unit and holding units common to such a network. The relays of the crossing point network are of the monostable reed-relay type. The through connection is of the two pole type i.e. each crossing point comprises just two make contacts. The wire connection between the matrices in the selector is limited to the speech wires since a continuous holding wire is not utilized. Addressing of the crossing points in a connection is carried out by means of a central processor by the setting up of a connection as well as by the releasing of the connection.

REFERENCES:
patent: 3235668 (1966-02-01), Abbott
patent: 3838227 (1974-09-01), Danielsen

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