The unit is a Broadview (ADT) board.
What's the best way to start this project? I haven't found anything similar.
Well, info on the home security equipment is sometimes hard to come by due to "security" issues.
Which is rather amusing, because the best security systems are ones that are well-documented, and thus subject to peer-review, as Bruce Schneier is fond of telling people. One thing and one thing only should be a secret: the key.
You know the saying "a picture is worth a thousand words"? Well, here it's "a link is worth a thousand (or more) words".What, exactly, do you mean by "monitor and control it"? Monitor is pretty clear, but control is not. You want to emulate a break in and see what happens? That's one form of control. Probably not the one you had in mind.