Dual-line telephone jack adapter and cable coupler

Details Dual-line telephone jack adapter and cable coupler Dual-line telephone jack adapter and cable coupler

1995-11-13

1997-09-09

Bost, Dwayne

Telephonic communications

Terminal accessory or auxiliary equipment

With circuit connection to terminal

439638, 439676, H04M 100

Patent

active

056664087

ABSTRACT:
A 4-pin telephone jack adapter which alters the pin configuration of a 4-pin telephone jack such that the phone line connected to the two outer pins of the jack is connected to the two inner pins of the adapter and be accessible to a one-line telephone set. The 4-pin telephone jack adapter can have two receptacle one of which alters the pin configuration of a 4-pin telephone jack while the other has the same pin configuration. With such an adapter, two one-line telephone sets can separately access to two phone lines connected to a 4-pin telephone jack. The same pin connection can be applied to a telephone cable coupler and a telephone extension cable.

REFERENCES:
patent: 4295702 (1981-10-01), Snyder
patent: 4362905 (1982-12-01), Ismail
patent: 4444451 (1984-04-01), Myers
patent: 4651340 (1987-03-01), Marson
patent: 5328390 (1994-07-01), Johnston

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