Automatic telephone line fault locator

Details Automatic telephone line fault locator Automatic telephone line fault locator

1986-06-16

1988-06-14

Schreyer, Stafford D.

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Of trunk or long line

379 26, H04B 346

Patent

active

047517247

ABSTRACT:
This automatic telephone line fault locator comprises a portable box-type structure which comprises an interface section including switches and having input terminals for connection to a line being controlled, a voltage and current measuring section electrically connected to the interface section for selectively measuring currents and voltages of suitable portions of the line being controlled, a control unit including a logic-arithmetic and control section coupled to the interface section and the measuring section for controlling the position of the switches and receiving the measured current and voltage values and calculating therefrom the position of any fault on the line.

REFERENCES:
patent: 3912884 (1975-10-01), Membrino et al.
patent: 4001559 (1977-01-01), Osborne et al.
patent: 4025736 (1977-05-01), Chlupsa
patent: 4028507 (1977-06-01), Hoppough
patent: 4186282 (1980-01-01), Ellson
patent: 4213016 (1980-07-01), Brockmann et al.
patent: 4568802 (1986-02-01), Bradley et al.

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