NFPA 72 Supervision

NFPA® 2022NFPA® 72 2022 Supervision & Battery Backup Requirements

• 24.10.5 All pathways between the remote call stations and the master control station shall be monitored for integrity.
• 10.6.9 Monitoring Integrity of Power Supplies
  • 10.6.9.1 Unless otherwise permitted or required by 10.6.9.1.3 and 10.6.9.1.6, all primary and secondary power supplies shall be monitored for the presence of voltage at the point of connection to the system.
• 24.10.14. 24.10.2.1: The secondary power supply for two-way emergency communications systems shall be capable of operating the system under quiescent load for a minimum of 24 hours and then subsequently during a fire or other emergency condition for a period of 4 hours with all remote call stations activated and all master control stations annunciating the calls.
• 24.10.2.2: The communications system shall be capable of monitoring additional power supplies for communications equipment vital to the transmission of off-premises signals. 24.10.3*: The communications system shall comprise remotely located communications stations (remote call stations), a master control station, and a primary and secondary power supply as required by Section 10.6.