As an alternative to this highly dated Ademco System, we venture into using Konnected Alarm Panel Pro, which works within the own network as well as with your own devices (e.g. smart phone) without the need for a subscription. In addition, it is easy to integrate with Home Asssitant.
See also "Konnected Alarm Panel Pro alarm system conversion kit installation demo with SmartThings" at https://www.youtube.com/watch?v=VnSjIiIqPus