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Azure 3131Z - 4131Z Reference Manual
20.10 Acquisition Started with External_Sync Input
While the X-ray detector is in an idle state or during the mode switch (indicated when
Detector_Ready is OFF), the rising edge of the Detector_Ready_Out signal indicates when the
detector is ready to receive the first External_Sync signal.
This means that when Detector_Ready is OFF, there is time to change the External_Sync timing if
needed.
While Detector_Ready is OFF, the External_Sync is input is ignored.
Note
In
Figure
15, an example is shown where timing goes from T
to T
after the mode switch,
frame
frame2
using an External_Sync frequency different than the previous Internal_Sync frequency.
A timeout will be generated in External_Sync mode if the time between triggers exceeds
15 seconds.
If a timeout occurs, the detector will return to Internal_Sync and start acquiring Flush Frames,
and Expose_OK signals will be disabled.
Figure 15 Acquisition Started with External_Sync Input
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