A zone type that is always active and initiates a trouble signal is called what?

A zone type that is always active and initiates a trouble signal is called what?

• A. 24-hour supervisory zone
• B. 24-hour zone
• C. Alarm zone
• D. Entry zone

Answer: (A)

A 24-hour supervisory zone. Zones are configured to behave in specific ways: some are active only when the system is armed, some are always on. A zone that stays on continuously is called a 24-hour zone. When a device that must be monitored all the time is not in its proper state—for example a valve, damper, or other critical component—the panel sends a supervisory (trouble) signal to alert that something is not right. That explicit combination of continuous monitoring and reporting faults is what the “supervisory” designation communicates, so the zone described as always active and initiating a trouble signal is a 24-hour supervisory zone. The other types don’t fit as well. An alarm zone reports an actual alarm condition when a sensor is triggered, not just a fault. An entry zone relates to entry/exit timing, not continuous supervision. A generic 24-hour zone is always active but doesn’t specify the supervisory/fault-reporting behavior.

A 24-hour supervisory zone.

Zones are configured to behave in specific ways: some are active only when the system is armed, some are always on. A zone that stays on continuously is called a 24-hour zone. When a device that must be monitored all the time is not in its proper state—for example a valve, damper, or other critical component—the panel sends a supervisory (trouble) signal to alert that something is not right. That explicit combination of continuous monitoring and reporting faults is what the “supervisory” designation communicates, so the zone described as always active and initiating a trouble signal is a 24-hour supervisory zone.

The other types don’t fit as well. An alarm zone reports an actual alarm condition when a sensor is triggered, not just a fault. An entry zone relates to entry/exit timing, not continuous supervision. A generic 24-hour zone is always active but doesn’t specify the supervisory/fault-reporting behavior.