Comprehensive Detailed Explanation and References
Intrusion alarms are systems specifically designed to detect unauthorized entry into a protected area while the system is active. These alarms respond when a perimeter is breached, such as through windows, doors, or motion detection. When triggered, they signal unauthorized access.
[References:, , ASIS International, Protection of Assets (POA), Chapter: Intrusion Detection Systems, , ASIS PSP Study Guide, Domain 2: Physical Security Systems]
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