ZONE: A zone is an area within the protected site under supervision of a specific detector. During programming, the installer allows the control panel to learn the detector’s identity code and links it to the desired zone. Since the zone is distinguished by number and name, the control panel can report the zone status to the user and register in its memory all the events reported by the zone detector. Instant and delay zones are “on watch” only when the control panel is armed, and other (24-hour zones) are “on watch” regardless of whether the system is armed or not.