Which type of communication may NOT be required for local intrusion systems?

Local intrusion detection systems primarily operate within a specific geographic area, typically leveraging existing network infrastructure to communicate alerts and data. Standard Local Area Network (LAN) connections are often utilized in such systems as they allow for fast and efficient communication between the sensors, controllers, and monitoring systems located nearby.

In contrast, fiber optic, cellular, and long-range radio systems are generally used for communication over larger distances or in scenarios where local infrastructure may not be available or reliable. Fiber optic systems facilitate high-speed data transmission over greater distances, cellular systems provide mobile connectivity which is useful in remote areas, and long-range radio systems enable communication when traditional wired connections are impractical.

Since local intrusion systems are designed to function within a defined area where reliable LAN connections are typically available, they may not require the additional complexities and capabilities offered by fiber optic, cellular, or long-range radio communications. Thus, the use of standard LAN connections is often sufficient and preferred for these systems.