NFPA 72 National Fire Alarm and Signaling Code provides rules and guidelines for fire detection, signaling and emergency communications demands. It also includes requirements for mass notification systems used during biological, chemical and nuclear emergencies, terrorist events and other threats.
Sample Question:
The DACR equipment at the supervising or subsidiary station shall be connected to a minimum of _________ separate incoming telephone lines (numbers).
A. One
B. Two
C. Three
D. Four
Solution:
B. Two
The text of this question would logically lead to the subheading “Transmission Channels” in Chapter 25 (2019 edition) NFPA 72 entitled: “Supervising Systems Alarm System.”
Article 26.6.4.2.2 (A)* states that “The DACR equipment at the supervising or subsidiary station shall be connected to a minimum of two separate incoming telephone lines (numbers).
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