EXFO CT440 Series, User Manual

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Description of Functions
CT440
117
Measurement Control Functions
Measurement Control Functions
CT440_ScanStart
Applicability All models of CT440.
Description This function starts a scan.
On CT440 with PDL option, one scan is performed at only one
polarization state.
For PDL measurement, you need to combine this function with the
CT440_PolState function (page 107) to record all 4 or 6 states of
polarization and be able to measure the PDL.
If the CT440_SetExternalSynchronizationIN function is used (see
page 111), the CT440 waits for a trigger signal from the laser on the
Trigger In
BNC port to start a scan.
In the GUI, this function corresponds to the Scan button (only for
measurement of Transfer Function).
Declaration int32_t CT440_ScanStart(uint64_t uiHandle);
Parameter
uiHandle
Handle returned from CT440_Init
Type: Input
Data type: unsigned int64
Return value

0: the operation succeeded.

-1: the operation failed.
Data type: int32
Example CT440_ScanStart(uiHandle);