Photron FASTCAM SA-Z, Hardware Manual

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3.8.9. REC ON CMD Mode
I n REC ON CMD mode, the content is recorded only while external SW or TTL trigger is input.
Recordings stop when the trigger is interrupted and resume when a new trigger is input.
While the maximum recordable frame count is not changed, the number of trigger inputs is
limited to 1000.
•
In this mode, you can make the system enter the record ready state but cannot input trigger from
PFV. Recordings can be triggered only by external inputs.
Record Trigger in
Input TTL Signal
Example) When triggered by TTL input
Recording Record Ready
TTL signal is being input
End TTL Signal Input TTL Signal End TTL Signal Input
Record
Ready
Recording
Record
Ready
Trigger signals can be input up to 1000 times.
TTL signal is being input
41 FASTCAM SA-Z Hardware Manual