METHOD FOR DETECTION OF A SHIELDING FAULT IN A MULTIWIRE CABLE

This invention relates to a method for detection of a shielding fault in a multiwire cable forming part of a communication network, during functional operation of the said network, the said cable (10) transferring a multiframe signal S(t), which comprises the following steps: - a disturbing signal I...

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Bibliographische Detailangaben
Hauptverfasser:	GAMBARDELLA, EDDIE, FLOURENS, FRANCK
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	This invention relates to a method for detection of a shielding fault in a multiwire cable forming part of a communication network, during functional operation of the said network, the said cable (10) transferring a multiframe signal S(t), which comprises the following steps: - a disturbing signal I(t) is injected into the said cable through an injection clamp (14) for a determined time T, - when an item of equipment (12) receives the signal S(t), the number N of frames in fault during the injection period of the disturbing signal I(t) is counted, - it is decided that there is a shielding fault in this cable if N/T