On August 13, 2014 at 14:27, osiris said...
My question is: can I simply put a zone expander (it's a DSC system) in the detached garage to allow for the additional devices (one keypad, 4 doors, 1 motion/GB), and run a single cat5e cable back to the main alarm panel to allow for the communication?
Yes, I would power the zone expander locally and use cat5e/cat6 for data only.