NFPA 72 sets a maximum time limit for verifying that signals frominitiating devicesreach thesupervising stationduring testing. The purpose is to ensure that communication paths and processing do not introduce unsafe delays.
NFPA 72 (2022), Section 14.4.3.4.2:
"Where connected to a supervising station, the signal shall be confirmed as received at the supervising station within 90 seconds of initiating device activation."
Correct answer: C. 90 seconds
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