A system Component that accepts and displays signals from digital alarm communicator transmitters (DACTs) sent over a managed facilities-based voice network.

"A system in which signals are transmitted from a digital alarm communicator transmitter (DACT) located at the protected premises through the public-switched telephone network to a digital alarm communicator receiver (DACR)."

A system component at the protected premises to which initiating devices or groups of devices are connected. The DACT seizes the connected telephone line, dials a preselected number to connect to a DACR, and transmits signals indicating a status change of the initiating device.

"A system component composed of two subcomponents: one that receives and decodes radio signals, the other that annunciates the decoded data. These two subcomponents can be coresident at the central station or separated by means of a data transmission channel."

"A system in which signals are transmitted from a digital alarm radio transmitter (DART) located at a protected premises through a radio channel to a digital alarm radio receiver (DARR)."

A system component that is connected to or an integral part of a digital alarm communicator transmitter (DACT) that is used to provide an alternate radio transmission channel.

A continuous, low-rate, constant current charge given to a cell or battery to keep the unit fully charged.

An abnormal condition that poses an immediate threat to life, property or mission.

A device that responds when the temperature rises at a rate exceeding a predetermined value

A signal indicating a concentration of carbon monoxide at or above the alarm threshold that could pose a risk to the life safety of the occupants and that requires immediate action

The total number of persons that might occupy a building or portion thereof at any one time.

A publicly accessible alarm box that can also be operated by one or more remote initiating devices or an auxiliary alarm system used to send an alarm to the communications center.

High frequency energy that can be modulated by voice or signaling impulse

A combination of systems that operate together as a whole to achieve the fire protection and life safety objectives

A carbon monoxide detection system in which componets are used, in whole or in part, in common with a non-carbon monoxide signaling system, and in which components are not used as part of a fire alarm system

An integrated system that has component systems or devices connected to achieve fire protection and life safety objectives.

Test performed on fire protection and life safety systems to confirm that operation, interaction, and coordination of multiple individual systems perform their intended function

A device that is used in the transmission of serial data (digital or analog) from the fire alarm control unit to other building system control units, equipment, or networks and/or from other building system control units to the fire alarm control unit.

A chemical or substance that is classified as a physical hazard material or a health hazard materia

A device in which detection is continuous along a path. Typical examples are rate-of-rise pneumatic tubing detectors, projected beam smoke detectors, and heat-sensitive cable.

An agent that contains as primary components one or more of the gases helium, neon, argon, or nitrogen. Inert gas agents that are blends of gases can also contain carbon dioxide as a secondary component

circuit component that interfaces initiating devices or control circuits, or both; notification appliances or circuits

The principle of using a light source and a photosensitive sensor arranged so that the rays from the light source do not normally fall onto the photosensitive sensor. When smoke particles enter the light path, some of the light is scattered by reflection and refraction onto the sensor. The light signal is processed and used to convey an alarm condition when it meets preset criteria.

A device that contains multiple sensors that separately respond to physical stimulus such as heat, smoke, or fire gases, or employs more than one sensor to sense the same stimulus. A device capable of generating multiple alarm signals from any one of the sensors employed in the design, independently or in combination.

An abnormal condition that poses a potential threat to life, property, or mission, and time is available for investigation

The primary control unit for an in-building mass notification system

"A circuit or path connecting a subsidiary station(s) to a supervising station(s) over which signals are carried."

A circuit or path connecting transmitters to supervising stations or subsidiary stations on which signals are carried.

A device that contains multiple sensors that separately respond to physical stimulus such as heat, smoke, or fire gases, or employs more than one sensor to sense the same stimulus. This sensor is capable of generating only one alarm signal from the sensors employed in the design either independently or in combination.

A device in which the detecting element is concentrated at a particular location

"A listed fire alarm or signaling system component that directly interfaces with the system that operates the emergency control function"

"A system component that connects a signaling line circuit to any combination of initiating devices, initiating device circuits, notification appliances, notification appliance circuits, system control outputs, and other signaling line circuits. "

"Acomponent of the fire alarm system, provided with primary and secondary power sources, which receives signals from initiating devices or other fire alarm control units, and processes these signals to determine part or all of the required fire alarm system output function(s)."

"A line-type detector comprising small-diameter tubing, usually copper, that is installed on the ceiling or high on the walls throughout the protected area. The tubing is terminated in a detector unit containing diaphragms and associated contacts set to actuate at a predetermined pressure. The system is sealed except for calibrated vents that compensate for normal changes in temperature"

Dedicated manual or automatic equipment for originating and distributing voice instructions, as well as alert and evacuation signals pertaining to a fire emergency, to the occupants of a building.

"A system for the protection of life by indicating the existence of an emergency situation and communicating information necessary to facilitate an appropriate response and action."

"A detector that consists of a piping or tubing distribution network that runs from the detector to the area(s) to be protected. An aspiration fan in the detector housing draws air from the protected area back to the detector through air-sampling ports, piping, or tubing. At the detector, the air is analyzed for fire products."

A continuous and unobstructed way of travel from any point in a building or structure to a public way consisting of three separate and distinct parts: (1) the exit access, (2) the exit, and (3) the exit discharge

Self-ac"ng equipment for transferring the connected load from one power source to another power source.

hazard contents shall be classified as those that are likely to burn with moderate rapidity or to give off a considerable volume of smoke

A device, installed in an air distribution system, that is designed to close automatically upon detection of heat ti interrupt migratory airflow and to restrict passage of flame.

Organization provide law enforcement, emergency medical, fire, rescue communications, and related support services

Consists of a system that uses heated fluids such as air as a means to store energy along with associated controls and systems, which can be used to run an electric generator to provide electrical energy upon demand.

Smoke detectors shall not be installed near to

A means of egress that provides an accessible route to an area of refuge, a horizon tal exit, or a public way.

That portion of a means of egress that is separated from all other spaces of the building or structure by construction, location, or equipment as required to provide a protected way of travel to the exit discharge

A way of passage from one build ing to an area of refuge in another building on approxi mately the same level, or a way of passage through or around a fire barrier to an area of refuge on approximately the same level in the same building that affords safety from fire and smoke originating from the area of incidence and areas communicating therewith

That portion of a means of egress that leads to an exit.

That portion of a means of egress between the termination of an exit and a public way.

A building or structure that is intended to remain in place for a period of more than 180 days in any consecutive 12-month period.

An alarm box that can only be operated from one or more remote initiating devices or an auxiliary alarm system used to send an alarm to the communications center.

A manually operated device used to initiate a fire alarm signal.

An enclosure, accessi- ble LO the public, housing a manually operated transmitter used to send an alarm to the communications center.

A device designed to detect the presence of a fire signature and to in tiate action. For the purpose of this Code, automatic fire detectors are classi fied as follows: Automatic Fire Extinguishing or Suppression System Operation Detector, Fire-Gas Detector, Heat Detec tor, Other Fire Detectors, Radiant Energy-Sensing Fire Detector, and Smoke Detector.

The electrical energy available from a full charged battery expressed in ampere-hours.

A device used to restore and maintain the charge of a secondary battery in which electri cal energy is converted to chemical energy

A constant-voltage charge applied to a battery to maintain it in a fully charged condition.

Minimum and maximum time between events

An interface coordinate signal to and from the fire alarm system and other systems.

An occupancy in which four or more clients receive care, maintenance, and supervi sion, by other than their relatives or legal guardians, for less than 24 hours per day.

Equipment that receives electrical energy and then provides a means to store that energy in some form for later use in order to supply elec- trical energy when needed.

Consists of a mechanical means to store energy such as through compressed air, pumped water or fly wheel technologies and associated controls and systems, which can be used to run an electric generator to provide electric energy upon demand.

A signal indicating a supervi sory condition and the need for action in connection with the supervision of guards or system attendants.

An indication of a condition communicated by electrical, visible, visual, audible, wireless, or other means.

Consists of hydrogen storage, the hydrogen generator to supply the hydrogen for storage, and a fuel cell power system to provide electric energy upon demand.

Equipment that controls dc voltage or de current, or both, and that is used to charge a battery or other energy storage device

Total quantity of combustible contents in a building

Any alarm that occurs that is not the result of a potentially hazardous condition.

A system capable of sending mass notification messages to individual buildings, zones of buildings, individual outdoor loudspeaker arrays, or zones of outdoor loudspeaker arrays: or a building, multiple buildings, outside ireas, or a combi nation of these

A line-type or spot-type sensing element in which resistance varies as a function of temperature

A notification appliance that alerts by the sense of touch or vibration

A system or portion of a combina tion system that consists of components and circuits arranged to monitor and annunciate the status of fire alarm or supervi sory signal-initiating devices and to initiate the appropriate response to those signals.

A supervised component of a life safety system that communicates with other components of life safety systems and that collects environmental data or performs specific input or output functions necessary to the operation of the life safety system.

Building. fire. and emergency control elements or systems that are initiated by the fire alarm or signaling system and either increase the level of life safety for occupants or control the spread of the harmful effects of fire or other dangerous products.

A fuel tank located inside a structure that provides fuel to the engine

A unit containing one or more indicator lamps, alphanumeric displays, or other equivalent means in which each indication provides status information about a circuit, condition, or location.

The ability of any conductor. optic fiber, radio carrier, or other means for transmitting system information to remain operational during fire condi tions.