What control panel feature is used to automatically prevent repeating alarms caused by a device on the same zone?

What control panel feature is used to automatically prevent repeating alarms caused by a device on the same zone?

• A. Time delay
• B. Swinger bypass or shunt/shunting
• C. Alarm memory
• D. Panel lockout

Answer: (B)

Swinger bypass, also called shunt or shunting, automatically excludes a device on a zone from triggering additional alarms after the initial event. When that device trips, the panel “swings” it out of service for a set period (or until reset), so the same device won’t cause repeated alarms while the rest of the system remains active. This reduces nuisance repeats from a single faulty or noisy device and keeps the alarm log clear for responders. Time delay just delays a signal, alarm memory stores the last alarm, and panel lockout prevents panel use rather than suppressing repeats on a zone.

Swinger bypass, also called shunt or shunting, automatically excludes a device on a zone from triggering additional alarms after the initial event. When that device trips, the panel “swings” it out of service for a set period (or until reset), so the same device won’t cause repeated alarms while the rest of the system remains active. This reduces nuisance repeats from a single faulty or noisy device and keeps the alarm log clear for responders. Time delay just delays a signal, alarm memory stores the last alarm, and panel lockout prevents panel use rather than suppressing repeats on a zone.