Hello,
Thanks for using National Instruments' Discussion Forums.
The camera you are using appears to have both Y/C (S video type) outputs, and composite video in the form of a VBS output. I believe I have found its user manual here:
ManualIn one diagram on this manual, it shows that the CN301 connector has C output and Y output on pins 2 and 4. You can connect these, along with their ground to an S video connector.
If you do not want to use an S video connector, you should be able to use pin 6 as a composite video signal and input it to the BNC input on the 1411.
Hope this helps,
Robert Manion