Fault location system for a digital transmission line

Details Fault location system for a digital transmission line Fault location system for a digital transmission line

1986-05-27

1988-05-03

Atkinson, Charles E.

Excavating

370 131, 371 5, 379 4, H04B 346

Patent

active

047425180

ABSTRACT:
A fault location system includes a test code generator located at an end terminal for transmitting a test code sequence of signals onto a digital transmission line. A line regenerator located along the transmission line detects the test code sequence of signals. Other circuitry interconnected with the line regenerator determines and stores a number count indicating how many errors are detected in the test code sequence. In response to a polling request from a fault location circuit in the end terminal, the other circuitry storing the count indicating errors transmits that count to a fault location circuit which calculates an error rate therefrom.

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"GaAs Integrated Circuits for Error-Rate Measurement in High-Speed Digital Transmission Systems", IEEE Jrnl. Solid-State Circuits, C. A. Liechti, et al., pp. 402-408, Aug. 1983.

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