Method of detecting remote ground condition

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of trunk or long line

Reexamination Certificate

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C379S022040, C379S027050, C379S029010, C361S042000

Reexamination Certificate

active

11297131

ABSTRACT:
Whether or not protection circuitry for a span-powered remote digital subscriber loop unit is properly connected to earth ground is determined by the deliberate assertion and detection of a ground fault from a central office line card location. The span-powered remote unit is augmented to place a controllable conduction path in circuit with the span-powered loop and an earth ground pin. If the earth ground pin has been properly connected to earth ground, applying the conductive path will place a ground fault on the span, which is detected by a ground fault detector within the central office line card. If the ground fault detector does not detect a ground fault in response to the application of the conductive path, the line card forwards a negative ground fault event message to a test center, so that a service technician may be dispatched to the remote unit to correct the problem.

REFERENCES:
patent: 4197435 (1980-04-01), Jackson et al.
patent: 4385336 (1983-05-01), Takeshita et al.
patent: 5113426 (1992-05-01), Kinoshita et al.
patent: 5390231 (1995-02-01), Hung et al.
patent: 5400203 (1995-03-01), Tice
patent: 5774316 (1998-06-01), McGary et al.
patent: 5808470 (1998-09-01), Adams et al.
patent: 5862200 (1999-01-01), Sheets
patent: 6292541 (2001-09-01), Tice et al.
patent: 6757382 (2004-06-01), Wilkes et al.
patent: 6999561 (2006-02-01), Tidwell et al.

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