Terminal disconnect and media wire fault detect mechanism

Details Terminal disconnect and media wire fault detect mechanism Terminal disconnect and media wire fault detect mechanism

1983-06-23

1985-11-05

Krawczewicz, Stanley T.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

G01R 3102

Patent

active

045516715

ABSTRACT:
A device, method and system for testing in situ the wiring between a data terminal equipment and a ring or similar type local area network having a loop conduction path with a plurality of data terminal equipment (DTE) coupled to said loop conduction path. The DTE is provided with a mechanism for generating d.c. current. The d.c. currents flow from the DTE through a length of interconnecting conductors and self-shorting connectors towards the loop conduction path. Current measuring devices monitor the current at the interconnecting conductors for imbalance current flow and/or over current. The presence of either a current imbalance and/or over current indicates a malfunctioning (short circuit, broken wire, etc.) in the wiring.

REFERENCES:
patent: 3812303 (1974-05-01), Stewart
patent: 4204241 (1980-05-01), Yang

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