What type of alarm system is a direct extension of the police or fire alarm system?

The correct answer is an auxiliary system. This type of alarm system is designed to serve as a direct extension of the public emergency response systems, such as police or fire departments. Auxiliary systems work by connecting directly to those services, allowing for quick communication and response when an alarm is triggered. This linking provides a reliable method of alerting local authorities in real-time, which can be crucial during emergencies.

In contrast, central station systems typically monitor alarms at a dedicated central facility and alert the appropriate authorities, but they do not automatically connect to emergency services like an auxiliary system does. Local alarm systems are designed to alert occupants in the immediate vicinity, often through auditory alarms or bells, but do not notify external agencies. Proprietary systems are owned and operated by a specific organization and typically only alert internal personnel rather than linking directly to police or fire departments.