Security system integration connects previously separate systems so that an event in one produces a response in another. A forced door can call up a camera, an alarm can lock a gate, and one interface can show all three, shortening the gap between detection and response.
Integration is the difference between three systems and one operating picture. It also adds dependencies, so when the link fails the operator needs a documented way to fall back.
Integrations that matter most
Access control to video is the most requested: a card read or door alarm triggers recording and a camera view. Intrusion, intercom and fire systems join through relay contacts, APIs or a management platform.
Designing for failure
Every integration should state what happens when a component is offline, which side keeps working and how the operator is told. Tested fallbacks keep one outage from becoming three.