Device for blocking a junctor of an automatic switching system

Details Device for blocking a junctor of an automatic switching system Device for blocking a junctor of an automatic switching system

1977-04-21

1979-01-16

Brown, Thomas W.

179 18AB, H04M 322

Patent

active

041350618

ABSTRACT:
The invention comes within the field of telephone equipment and relates in articular to the control of the blocking of a junctor in an automatic switching system. It comprises a first interface circuit followed by an antinoise device, an enabling circuit and a second interface circuit to be disposed between the signalling output of a junctor and its blocking control input. This device causes the blocking of the junctor to be delayed until this junctor is free. This device applies in particular to the control of the blocking of junctors operating in C.C.I.T.T. code 5.

REFERENCES:
patent: 3430000 (1969-02-01), Rohrig
patent: 3824350 (1974-07-01), Merriam

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