A burglar alarm system in which alarm initiating circuits and devices are installed at a property and are connected directly or indirectly to constantly monitored receiving equipment at a central supervising station located at the protected property is called a ____ burglar alarm system.

• A. Proprietary
• B. Central-station monitored
• C. Local
• D. Wireless

Answer: (A)

The key idea here is where the supervising station sits and who operates it. A proprietary burglar alarm system has its alarm initiating devices on the property connected to a central supervising station that is located at the protected property itself, giving the property operator direct control and monitoring from that on-site center. That on-site central station distinguishes it from other setups where the central station is off-site (central-station monitored), or where there is no central station (local), or where the term describes the wireless nature of communication rather than the location of the supervising point. Therefore, the on-site central station definition best matches this description, making it a proprietary burglar alarm system.