Which alarm system ties several separate local alarm systems not under its ownership into one location?

• A. Central station
• B. Local alarm system
• C. Automatic alarm
• D. Supervisory system

Answer: (A)

Central station monitoring is the setup that ties several separate local alarm systems into one location for centralized monitoring and response. A central station collects alarm signals from many sites, often owned by different entities, and routes them to trained operators at a single monitoring center. This allows rapid verification, dispatch, and coordinated action across multiple premises from one location.

A local alarm system stays confined to a single property and doesn’t connect to other sites, so it can’t provide a centralized view. An automatic alarm simply describes alarms that trigger automatically but doesn’t imply cross-site aggregation. A supervisory system focuses on status or condition within a single system (like indicating a fault or supervisory signal) rather than linking multiple separate systems to one monitoring point.