Connecting 4-wire smokes to Ademco V15P

["rahouston@xxxxxxxxxxx" <rahouston@xxxxxxxxx>]

I'm trying to sort out the installation of 2 4-wire smoke detectors to
my Ademco Vista 15P panel.  According to the instructions, I need to
connect power in a way that will allow the smokes to be reset.  It
looks like the panel has a "trigger" point, where if I connect the +
power and program the trigger correctly, it will power down/up to
reset.  Other than that, if I connect the power to auxillary power, the
smoke will not reset, which I'm assuming may contribute to possible
false alarms.  Another alternative is to install a separate relay to
reset, but I don't really want to do that.

Am I on the right track with this?  Is there a better alternative?
Does the "trigger" option work well?

Thanks, in advance, for your help!

Rob Houston