Fault detection in a telephone cable pressure monitoring system

Details Fault detection in a telephone cable pressure monitoring system Fault detection in a telephone cable pressure monitoring system

1984-03-26

1986-02-11

Schreyer, Stafford D.

Electricity: conductors and insulators

Feedthrough or bushing

Compression

1791753F, 174 11R, H04B 346

Patent

active

045700370

ABSTRACT:
A system for detecting the source of a faulty pressure reading in a telephone cable pressure monitoring system is provided. The system interrupts a phone line circuit midstream and provides a test system thereat capable of remotely and concurrently testing both sides of the phone line including a pressure responsive variable resistance at one end and a sensing system at the other end of the line.

REFERENCES:
patent: 2307896 (1943-01-01), Neiswinter et al.
patent: 3105882 (1963-10-01), Meyer
patent: 3105883 (1963-10-01), Higson
patent: 3360617 (1967-12-01), Munson
patent: 3444336 (1969-05-01), Holt et al.
patent: 3944914 (1976-03-01), Simmonds
patent: 4025736 (1977-05-01), Chlupsa
patent: 4193054 (1980-03-01), Reis

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