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Chapter 3
Digital I/O Functionality
Typical System Setup
NI CVS-1450 Series User Manual
Digital I/O configuration varies depending on the number of cameras your
system setup requires. You can access the digital I/O through the 44-pin
DSUB connector or through the three SMB connectors.
The digital I/O capabilities of the SMB connectors on the NI CVS-1450
device are ideal for typical single-camera applications. The SMB
connectors are labeled TRIG 0, TRIG 1, and TRIG 2.
Table 3-5 summarizes a typical single-camera configuration.
Table 3-5. Typical Single-Camera System Setup
Signal Name
TRIG 0
Isolated input
TRIG 1
Timed pulse TTL output
TRIG 2
Timed pulse TTL output
Signal Type
3-16
Purpose
Trigger input from
proximity sensor or
external device
Exposure start and
control signal to camera
Strobe light control
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