4.3.5-2 Acknowledgment of Alarm System Configuration Changes

Acknowledgment (or confirmation) should be required if a significant alarm system configuration change is to be made by user selection.

Additional Information:
Alarm systems allow users to select alternative functional configurations of the alarm system under some alarm situations. An example may be operator selection of an alarm message suppression mode in which low priority messages are not presented via the alarm displays but may be accessed through operator action. It is important that the alarm system informs the operators that a requested change in system configuration has been successfully achieved. In addition, a prominent display of the present configuration should be available.