Photron FASTCAM SA7, Руководство по оборудованию

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Chapter. 3 Recording
34
3.11.2. Outputting External Trigger Signals
With the system, you can externally output trigger signals. Output is performed with the TRIG TTL
OUT connector's dedicated trigger output system provided by the system, and additionally, output
can also be optionally set from the GENERAL OUT connector. You can change External trigger
signal output settings by PFV.
Signal output is performed from the TRIG TTL OUT connector and the GENERAL OUT connector
explained in section “2.2.7. I/O Port Connector”.
The chart below summarizes the output systems and the signals that can be output.
Connector Name
(Output System)
Setting Signal Type Delay Time
TRIG TTL OUT
TRIG POS
TTL, SW, SOFT, all TRIG pulse output
CMOS (74ACT541 buffer) output,
Positive Polarity.
Approx.24 usec for
TRIG SW IN
Approx. 85 ns for TRIG
TTL IN, GENERAL IN
TRIG NEG
TTL, SW, SOFT, all TRIG pulse output
CMOS (74ACT541 buffer) output,
Negative Polarity.
TTL IN THRU
POS
TRIG TTL IN through output
CMOS (74ACT541 buffer) output,
Positive Polarity.
Approx. 85 ns for TRIG
TTL IN
TTL IN THRU
NEG
TRIG TTL IN through output
CMOS (74ACT541 buffer) output,
Negative Polarity.
GENERAL OUT
TRIG POS
TTL, SW, SOFT, all TRIG pulse output
CMOS (74ACT541 buffer) output,
Positive Polarity.
Approx. 24 usec for
TRIG SW IN
Approx. 85 ns for TRIG
TTL IN, GENERAL IN
TRIG NEG
TTL, SW, SOFT, all TRIG pulse output
CMOS (74ACT541 buffer) output,
Negative Polarity

When a trigger signal is output to GENERAL OUT, set the signal to be output from the PFV in
advance before using it.