Photron FASTCAM-PCI R2, Руководство по оборудованию

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FASTCAM-PCI R2 Hardware Manual
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3.4. Timing of Recording Operation
3.4.1 Timing Charts for Recording Operation
3.4.1.1. Timing Chart for START and RANDOM Recording Modes
The below chart shows the temporal relationship between signals related to recording operation in
START and RANDOM trigger modes (random reset not effective).
Note: START trigger mode starts recording when a trigger is received and records images until the
memory is full. RANDOM mode records a preset number of frames at each trigger and records
until the memory is full.
Note: When shutter is used, the exposure period becomes shorter than the above. See details in
the timing chart in 3.4.1.3.
Note: The amount of delay between the incoming and internal triggers greatly depends on the type
of incoming triggers. For example, the delay is over 23 µsec with a contact closure trigger, while it
is only 1.3 µsec with a TTL trigger.
Input Trigger Signal
Expose pos
Rec pos
RT Expose pos
V-Sync pos
TRIG OUT
Internally-delayed
Trigger Signal
Ext Sync Out
General Out
Trigger Out
+5V
GND
Delay between trigger entry and start of recording:
TTL: 1.3 ± 0.1 µsec.; Contact: 23.5 ± 0.5 µsec.
+5V
GND
+5V
GND
+5V
GND
+5V
GND
Exposure Period Exposure Period
Transfer Period
Exposu
Transf
Transfer Period
2.5 usec
5 usec