JAI Vehicle Imaging Subsystem 300, Installation Manual

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Page 26
VIS CAM 300/400 Installation Manual
Installing the Vehicle Imaging System
3.3.5 X14 Trigger Input Connector
The Trigger input connection to the J-Panel is connector X14. The connections are listed in Table 7
TABLE 7.
Trigger input connector.
3.3.5 (a) Trigger polarity
The switches S3 and S5 sets the trigger polarity:
If the trigger signal is normally low (no voltage at trigger input) the switch shall be in position
Arrow up - positive going
If the trigger signal is normally high (voltage at trigger input) the switch shall be in position
Arrow down – negative going
As a guideline the two LEDs marked TRIG-0 and TRIG-1 shall be off when no trigger pulse is present.
3.3.5 (b) Test Trigger
Activating switches S1 and S4 generates a trigger pulse for test purposes. Only one trigger pulse is
generated each time the switch is activated.
The duration of the trigger pulse is approximately 4 ms.
The trigger indicator LEDs flash when the test trigger switch is activated.
FIGURE 24.
Test trigger
X14 Pin # Signal Description Connection to
1 Trig0+ Positive Trigger input to camera 0 Trigger device positive terminal
2 Trig0- Negative Trigger input to camera 0 Trigger device negative terminal
3 Trig1+ Positive Trigger input to camera 1 Trigger device positive terminal
4 Trig1- Negative Trigger input to camera 1 Trigger device negative terminal