29.1.3 DasCalibrationPoint

This object contains calibration points in the array

Table 29.1.3-1 Attributes
Name	Type	Notes
CalibrationFacilityLength	LengthMeasure	The ‘facility length’ corresponding to the CalibrationOpticPathDistance. The ‘facility length’ is the length along the ‘optical path’ and is corrected for overstuffing, additional fiber in turnaround-subs or H-splices that increase the optical path length on the OTDR, but not the actual facility length.
CalibrationLocusIndex	NonNegativeLong	The locus index for the calibration point. Where ‘Locus Index 0’ is the acoustic sample point at the connector of the measurement instrument.
CalibrationOpticalPathDistance	LengthMeasure	The ‘fiber distance’ corresponding with the locus index of the calibration point. This is similar to the OpticalPathDistance used in DTS. This ‘fiber distance’ is the distance from the connector of the measurement instrument to the acoustic sample point along the fiber that is the furthest from the measurement instrument for that particular test.
CalibrationType	DasCalibrationTypeExt	A brief meaningful description of the type of calibration point. This is an extensible enumeration type. Current reserved keywords are ‘locus calibration’, ‘tap test’ and ‘last locus to end of fiber’ for commonly used calibration points.

Table 29.1.3-2 Associations
Association	Notes
From: DasCalibrationPoint. To: DasCalibrationTypeExt Dependency
From: DasCalibration.CalibrationDataPoints 1..*To: DasCalibrationPoint Association