the galaxy and vista are 2 completly different products. The galaxy was deveopled in scotland long before ademco purchased microtech and long before honeywell purchased ademco. The vista was developed in the US
it doesnt. It connects to the same inputs but wont work on a galaxy. You could use this board from the galaxy using links (menu option) relays and outputs. But not directly to the eol wiring. If using this board via links you could use the rf detectors too, but im fairly sure the rf does not do status in the unset state.
Galaxy guy (member) is developing something for this but id look at what you actually need re status, circuit activity, remote control etc from the HA system.