18 DECEMBER 2002
Design to intelligibility requirements in accordance with NFPA 72. Verification
should be accomplished in accordance with IEC 60849.
Locate notification appliances in accordance with NFPA 72 appliance placement
4-2.1.2 Autonomous Control Unit. Provide autonomous control units in each facility
or building with the following general features:
Able to function independently upon failure of a base-wide control system (if
Independent of fire alarm system.
Ability to temporarily deactivate fire alarm audible notification appliances while
delivering voice messages.
Conductor integrity monitoring for strobe, display, temporary deactivation of fire
alarm audible notification appliances, and speaker wiring.
Secure local operator console for initiating recorded messages, strobes, and
displays; and for delivering live voice messages.
Capacity for at least four prerecorded messages.
Ability to deliver messages quickly.
Ability to automatically repeat prerecorded messages until terminated.
Secure microphone for delivering live voice messages.
Adequate discrete outputs to temporarily deactivate fire alarm audible notification
appliances, initiate optional textual displays, and initiate/synchronize strobes.
Complete set of self-diagnostics for the controller and appliance network.
Local diagnostic information display.
Local diagnostic information and system event log file.
4-2.1.3 System-Wide Features:
Has power supplies capable of accepting 110 to 240 volts, alternating current
(VAC), 50 to 60 hertz (Hz).
Provides uninterruptible power supply (UPS) or secondary (standby) power for all
Provides conformance to applicable sections of NFPA 72.
Uses only commercial off the shelf (COTS) components.
Provides fault-tolerance with major component redundancy.
4-2.1.4 Communication Network. Provide autonomous control units in each facility
Available interface for communication with (optional) base-wide control system
for mass notification.
Ability to relay local diagnostics information to central control unit(s).
Available backup communication link.
4-2.1.5 Visible Notification Appliances. The mass notification system must provide
visible notification appliances in accordance with UFAS and ADAAG requirements, and
comply with the requirements of NFPA 72. The visible notification appliances used for