Method and apparatus for testing communication systems

Details Method and apparatus for testing communication systems Method and apparatus for testing communication systems

H - Electricity

04

L

379/2, 324/44, 3

H04L 1/00 (2006.01) H04B 3/46 (2006.01) H04M 3/30 (2006.01)

Patent

CA 1245739

ABSTRACT METHOD AND APPARATUS FOR TESTING COMMUNICATION SYSTEMS A microcomputer controlled apparatus and method for testing communication lines including circuits serving multiple functions in the measurements of line electrical and noise characteristics. A current divider, an analog to digital converter, a constant current source, various filters and an RMS-to-DC converter are used to perform A.C. and D.C. voltage and current measurements, resistance measurement and noise measurement. Capacitance measurement circuits and method utilize a buffer for isolating the capacitance on the wire measured from other capacitance sources.

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