Method for detection of a shielding fault in a multiwire cable
AssigneeAirbus France
InventorsEddie Gambardella, Franck Flourens
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Abstract
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≦TEPmax, where TEPmax is the maximum packet error rate to be guaranteed.
Claims8
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), characterized in that it 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≦TEPmax, where TEPmax is the maximum packet error rate to be guaranteed.
Dependencies are inferred from the claim text.