Compliance
Fire Alarm Communication Requirements
NFPA 72 signaling pathways and acceptable cellular replacements for fire alarm dialers.
Fire alarm control panels (FACPs) communicate alarm signals to a supervising station (often a central station monitoring center) over a signaling pathway. NFPA 72 — the National Fire Alarm and Signaling Code — governs the design, installation, and supervision of these pathways.
NFPA 72 recognizes several transmission methods, including digital alarm communicator systems (DACS), supervised multiline, and cellular / IP-based pathways. For many years, fire alarm dialers used POTS lines as the primary pathway. As copper POTS is sunset, organizations must migrate to NFPA 72-compliant alternatives.
Cellular pathways used for fire alarm signaling must be listed for fire alarm use and provide supervision — meaning the pathway itself is monitored for integrity, and a fault generates a supervisory signal. Single-path and multi-path configurations are both permitted under NFPA 72, with multi-path (often dual-carrier cellular) providing higher reliability tiers.
True911 supports NFPA 72-compliant cellular pathways for fire alarm dialer replacement, with dual-carrier failover and supervised connectivity that meets the code's integrity monitoring requirements.
Frequently Asked Questions
Can a fire alarm use a cellular connection?
Yes. NFPA 72 permits cellular transmission pathways when the equipment is listed for fire alarm use and the pathway is supervised for integrity. Dual-carrier configurations provide higher reliability tiers.
What is a supervised pathway?
A supervised pathway is monitored continuously for integrity. If the pathway fails (loses connectivity), a supervisory signal is generated at the supervising station within the time required by NFPA 72.