Determine Fire Alarm Operation on Second Alarm from a Silenced Panel

• Issue

If a MUX point goes in to alarm and the panel is silenced and the point clears, will the panel go back into alarm if the point shorts again?

• Solution

It depends on whether the point is latching or non-latching.  If it is latching then no, it will only sound until it is silenced and then will not sound again until the panel is reset. If a different latching point trip them the alarm will resound.  However, if the point is non-latching then the panel would return to normal when the point clears which would allow it to sound alarm again on the new alarm.

Part numbers FPD-7024, D7024, DS9400, DS9400I, DS9400M