CompuServe Messages

I believe it triggers on a +5vdc pulse. This usually what the GPI interface generates on send. At least this is what I see on the scope. The other thing you might need to calibrate is the GPI timing delay in the PAR. This is setup in the submenu and is very accurate. We have ours set for 5.00 seconds which is the delay for the preroll. Our controller does a 5 second preroll after sending the GPI pulse. In other installations you may need no delay.