Apparatus and method for testing a telephone circuit protector

Details Apparatus and method for testing a telephone circuit protector Apparatus and method for testing a telephone circuit protector

1990-03-16

1991-02-05

Schreyer, Stafford D.

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Of data transmission

379 9, 379 21, H04M 326

Patent

active

049911953

ABSTRACT:
An apparatus and method for testing voltage arresters and current shunting circuits within a telephone circuit protector are described. A typical protector tested by the apparatus and method includes two voltage arresters and two current limiting circuits. One set of a voltage arrester and a current limiting circuit are tested for voltage breakdown, continuity and ground faults by actuation of a single test operating switch. The other voltage arrester and current limiting circuit are then selected and tested by a single actuation of the test operating switch. Breakdown voltage, continuity, ground fault and low battery visual indicators are provided.

REFERENCES:
patent: 4912755 (1990-03-01), Blood et al.

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