JAI IIT Camera Systems VIS-CAM 400 - Manual (Page 26)

IIT Camera System Manual
26 System Set-Up
Figure 17. Set the value to 1.50 by manually typing the value
4.2 Properties setup when using External Light Sensor
The Camera Properties for using the external Light Sensor Function is shown below.
Figure 18. Trigger Selection
Unselect the Serial Trigger input and select the TTL Trigger in the Trigger section for the camera.