However, the audio and visual appliances that disperse alerts for each system will be clearly distinct from one another.įor example, fire alarm strobes will be visually marked as “Fire” and will not used to signify any event other than fire. Generally, the in-building notifications will piggyback on the fire alarm notification system’s network. However, MNS equipment can be broken down into in-building system networks and wide area systems. The hardware utilized in a Mass Notification System includes many of the same elements in a fire alarm voice evacuation system. Instead, a “shelter in place” scenario may specifically advise occupants not to leave the building, and in some cases, may precede a lockdown of the premises to exclude an external threat. Unlike the fire alarm system, an MNS alert may not instruct occupants to evacuate. While instructions issued by a fire alarm voice notification system are limited, a Mass Notification System may give more detailed information as to the exact nature of the alert and the recommended action. Some MNS events can be quite mundane, such as a water pipe rupture. Events that might trigger an MNS include an active shooter on the premises or nearby, a riot or civil disturbance in the immediate area and severe weather, such as a tornado or an environmental hazard like a toxic spill. Mass Notification Systems may activate from a variety of threats other than a fire. System concept was primarily initiated by the events of 9/11 where there was a lack of organized systems to sustain communications within a building and to guide occupants to safety. The Next Level: Mass Notification Systems The Mass Notification However, the end goal for any fire alarm notification system is to clear the building of all occupants. This may also include dispensing specific instructions for evacuation by particular routes to avoid contact with smoke or fire. The primary purpose of the fire alarm voice notification system is single and straightforward - to inform occupants of the existence of a fire and manage safe evacuation. Usually, MNS requirements may also be integrated into a fire alarm system. While these are two distinct functions for NFPA 72, both may well be folded into a single comprehensive safety system. In-building emergency notification methods include fire alarm voice evacuation systems and mass notification systems (MNS). This information is typically distributed throughout a building via visual and audio methods. The VM-3000 Series is the world's first Voice Evacuation System complying with both American and Canadian standards UL 2572 and CAN/ULC-S576 listings.The 2010 edition of NFPA 72: National Fire Alarm and Signaling Code was the first edition to allow the use of fire alarm notification systems to communicate other information in buildings during the event of non-fire emergencies.
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