The alarm control is the brain of your security system. It is typically placed in an area that is out of the way like a basement, attic, closet or office. The motherboard and additional components such as radio receivers, backup power supply and zone expanders are inside this metal box, which is often locked. You will have a little or no interface with the alarm control. Your alarm technician will need to access this unit to program and wire it to the general standards, or your custom standards...