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3.3 Providing External Triggering
There are two ways to provide external triggering to the 2K & 4K TDI LVDS cameras:
• Directly send the external trigger to the camera’s DB15 connector as mentioned
earlier.
• Provide an external trigger to the frame grabber and it will send the EXSYNC signal
to the camera.
3.3.1 Direct Trigger
In this configuration, the EXSYNC is sent directly to the camera from the external LVDS
trigger source (frame grabber, shaft encoder, etc.).
3.3.2 LVDS Trigger Source
If the external trigger source is LVDS, it can be directly interfaced to the camera as
illustrated below.
CAMERA CONNECTOR
DIRECT TRIGGER
J5
DSUB 15-P
4
12
EXSYNC -
EXSYNC
+
Fairchild Imaging • CAM/CCD-2KLV.TDI & CAM/CCD-4KLV.TDI Line Scan Camera User’s Manual • Rev 073004 • 18 of 38