Signal generator for tracing multiple transmission lines

Details Signal generator for tracing multiple transmission lines Signal generator for tracing multiple transmission lines

1995-06-05

1996-09-17

Hofsass, Jeffery

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

With blocking of normal usage

324 66, 379 26, 379 29, 379246, H04M 308, H04M 300, G01R 1900

Patent

active

055576516

ABSTRACT:
An apparatus and method are provided for use in tracing transmission lines from a first location to a second location. The apparatus includes a signal generator, a timer/controller, a switching controller and a number of switches. In operation the switches are connected to transmission lines to be traced. The signal generator produces one or more unique signals. A unique signal pattern is applied to each transmission line by selectively opening and closing the switches connected to each transmission line, thereby allowing each transmission line to be traced from a first location to a second location by detection of the corresponding unique signal pattern.

REFERENCES:
patent: 4393491 (1983-07-01), Ashlock et al.
patent: 4682347 (1987-07-01), Lynch
patent: 4748402 (1988-05-01), Sellati
patent: 4788710 (1988-11-01), Lynch

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