Dear,
I double checked the trigger connection to the FMC connector and it connects indeed to G37. Probably your ML605 sets VADJ to 2.5V? For this voltage level, trigger input Vih > 1.7V and Vil < 0.7V, with a input voltage range of 0V to +5V. Could you double check that you apply to correct voltage? Is the FMC104 plugged onto the LPC or HPC connector of the ML605?
Best regards,
Ingmar van Klink
4DSP