How to get a trigger signal from d-sub on NI PCIe-1427 frame grabber

Hello

I am using a PCIe-1427 frame grabber with a CCD camera. The camera works with a light source and I need to make a strobe light using a 15-pin D-SUB connector on PCIe-1427 frame grabber. I know that there are 4 trigger signals available to send on D-SUB connector. Does anybody know how can I do this? Is there any example or maybe somebody has any ideas? Thank you