Telephone line and instrument tester

Details Telephone line and instrument tester Telephone line and instrument tester

1984-08-17

1989-05-02

Schreyer, Stafford D.

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Testing of subscriber loop or terminal

379 26, 379 29, 379 32, H04M 124

Patent

active

048274984

ABSTRACT:
A telephone line and instrument tester is disclosed which is operable by a consumer for determining whether a malfunction in a telephone system is caused by a malfunction in a telephone instrument of the system or by a malfunction in source related equipment of the system, such as a telephone line leading to a jack of the system. The tester is receivable in a modular telephone jack for testing the operation of source related equipment of the system and a modular plug of a telephone cord is receivable in the tester for testing the operation of a telephone instrument attached to the cord. A circuit in the tester is responsive to the flow of current therethrough for providing an indication of the operation of the source related equipment and/or the telephone instrument.

REFERENCES:
patent: 2956229 (1960-10-01), Henel
patent: 3976849 (1976-08-01), Champan
patent: 4373120 (1983-02-01), McDonald

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