Photron FASTCAM ultima 1024, User Manual

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EXT IN EXT IN
A BNC connector that accepts vertical sync pulse signal from another FASTCAM-ultima 1024 for A BNC connector that accepts vertical sync pulse signal from another FASTCAM-ultima 1024 for
sysc operation of two or more cameras. When you use this connector, set EXT SYNC to “ON” by the sysc operation of two or more cameras. When you use this connector, set EXT SYNC to “ON” by the
EXTERNAL SYNC function on the remote keypad menu (see 3-14). EXTERNAL SYNC function on the remote keypad menu (see 3-14).
SYNC OPERA SYNC OPERATION OF TION OF TW TWO OR MORE PR O OR MORE PROCESSORS OCESSORS
Feed the signal from EXT OUT of one processor to EXT IN of a second processor, then the signal Feed the signal from EXT OUT of one processor to EXT IN of a second processor, then the signal
from EXT OUT of the second processor to EXT IN of a third processor, and so on to drive the from EXT OUT of the second processor to EXT IN of a third processor, and so on to drive the
processors in synchronization. processors in synchronization.
TRIGGER IN TRIGGER IN
A BNC type connector for one of the two types of trigger input signals. The input signal is A BNC type connector for one of the two types of trigger input signals. The input signal is
connected to an optical isolator that requires 5 volt, 10 mA suppuly. connected to an optical isolator that requires 5 volt, 10 mA suppuly.
The following is our recommended, simplified input-driver circuit. The trigger timing as seen The following is our recommended, simplified input-driver circuit. The trigger timing as seen
from the BNC connector is the rising of the pulse from Low to High. from the BNC connector is the rising of the pulse from Low to High.
Example1 Example1
2-6 2-6
Example2 Example2
TRIGGER IN SCHEMATIC TRIGGER IN SCHEMATIC
Hi to Low Trigger Hi to Low Trigger
Low to Hi Trigger Low to Hi Trigger
Connect to Connect to
Trigger In Trigger In
Connect to Connect to
Trigger In Trigger In
Trigger In Trigger In
CMOS LEVEL CMOS LEVEL
220 220
+5V +5V
10K 10K
+5V +5V
+5V +5V
330 330
Buffer Buffer
Processor Rear Panel Processor Rear Panel