alarm

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Definitions:

A device or function that signals the existence of an abnormal condition by making an audible or visible discrete change, or both, so as to attract attention to that condition.
Sources:
NIST SP 800-82r3 from ANSI/ISA-5.1-2009

Glossary Comments

Comments about specific definitions should be sent to the authors of the linked Source publication. For NIST publications, an email is usually found within the document.

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See NISTIR 7298 Rev. 3 for additional details.