Attenuator adapted for clip mounting to connecting block termina

Details Attenuator adapted for clip mounting to connecting block termina Attenuator adapted for clip mounting to connecting block termina

1985-03-21

1986-07-15

Brown, Thomas W.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

333 81R, 338221, 339 17LC, H01C 1028, H01R 909, H03H 724, H05K 118

Patent

active

046008160

ABSTRACT:
An attenuator introduces a known attenuation into telephone circuitry at connecting block terminals of incoming and outgoing, tip and ring lines when clipped thereto. The attenuator is particularly suited for attachment to an insulation displacement terminating block, known as a 66 type block, for telephone wire circuits or pairs. An attenuation network in the form of a balanced square pad is mounted on a substrate to form a printed circuit board and resistance assembly. Electrical contact means include four electrical contacts that have tail portions connected to the attenuation network and clip portions that grip the connecting block terminals of the incoming and outgoing, tip and ring lines. The printed circuit board and resistance assembly and the electrical contact means are received within a protective, insulating cover and retained therein by potting material. The attenuation rating or loss for the attenuator is marked on the top surface of the cover.

REFERENCES:
patent: 3177406 (1965-04-01), Bernstein
patent: 3641475 (1972-02-01), Irish et al.
patent: 3908178 (1975-09-01), Johnson et al.
patent: 4116524 (1978-09-01), DeNigris et al.
patent: 4126369 (1978-11-01), Rapata et al.
patent: 4220834 (1980-09-01), Holce et al.

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