Harrington Signal Tracker T8000 - Operation Manual - Manual (Page 22)

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HSI #780-0923 FireSpy Tracker Operation Manual
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General Alarm- Simultaneous operation of all the notification appliances on a system.
Ground Fault- A system trouble indicating appearance of a leakage resistance between any system
wiring and the system ground.
Initiating Device- Any manual or automatic device used to indicate an off-normal condition. This includes
manual pull stations, smoke detectors, heat detectors, and waterflow or tamper switches.
Initiating Device Circuit (IDC)- The circuit by which initiating devices communicate with the control
panel.
Labeled Equipment- Devices or materials, identified by an appropriate label which have been certified as
acceptable by a laboratory or agency recognized by the "authority having jurisdiction". This certifies that
the equipment complies with appropriate standards.
Listed Equipment- Devices or materials included in a list of conforming equipment published by a
laboratory or agency acceptable to the "authority having jurisdiction" and authorized to bear their label.
National Electrical Code (NEC)- A national standard for electrical system safety, published by the
National Fire Protection Association as NFPA standard 70.
Notification Appliance- An electrical device indicating system status, including bells, horns, strobe lights,
and speakers.
Notification Appliance Circuit (NAC)- The circuit by which notification appliances are connected to the
control panel.
Positive Alarm Sequence (PAS)- A process in which an off-normal response by a designated detector
alerts an attendant, who may, by acknowledging within 15 seconds, delay the general alarm for 3
minutes, giving time to investigate and reset the system, if desired.
Power Supply- The circuit in a fire alarm panel which provides system operating power, either derived
from the building supply or, in case of building power failure, from batteries maintained at full charge
during normal operation.
Pre-Alarm Signal- A signal from an analog smoke detector indicating that the detector is approaching an
alarm level.
Pre-Signal- A process by which an off-normal response by a designated detector initiates an alarm with
only selected notification appliances operating, and may be programmed to then sound a general alarm if
not silenced within a selected period of over a minute.
Signaling Line Circuit (SLC)- A circuit or path between any combination of circuit interfaces, control
units, or transmitters over which multiple-system input signals or output signals, or both, are carried.
Smoke Control- Integration between the fire alarm system and a building’s HVAC system (fans and
dampers) to prevent the spread of smoke and fire.
Style W- A Class B NAC configuration in which a circuit reports troubles from grounds, shorts, or opens,
but cannot operate the notification appliances with the abnormal condition.
Style X- A Class B NAC configuration in which a circuit reports troubles from grounds, shorts, or opens,
and can operate the notification appliances with a single open.
Style Y- A Class B NAC configuration in which a circuit reports troubles from grounds, shorts, or opens,
and can operate the notification appliances with a single ground fault.