Installation and Operation Manual
59
Initiating Device. A manually or automatically operated device, such as a manual station, a smoke detector, a
heat detector, a water flow switch, or tamper switch.
Initiating Device Circuit (IDC). A circuit to which initiating devices are connected.
Labeled. Equipment or materials to which is attached a label, a symbol, or another identifying mark of an
organization acceptable to the authority having jurisdiction and concerned with product evaluation, which
maintains the periodic inspection of the production of such labelled equipment or materials. And by those
labelling the manufacturer indicates compliance with appropriate standards or performance in a specified
manner.
LED. Light Emitting Diode.
LCD. Liquid Cristal Display.
Listed. Equipment or materials included in a list published by an organization acceptable to the authority having
jurisdiction and concerned with product evaluation that maintains the periodic inspection of the production of
the listed equipment or materials, and whose listing states either that the equipment or material meets the
appropriate standards or has been tested and found suitable for use in a specified manner.
NEC. National Electrical Code, also published as NFPA standard 70.
Notification Appliance. An electrically operated appliance used to indicate the system status, such as a bell,
horn, strobe light, or speaker.
NAC (Notification Appliance Circuit). A circuit to which notification appliances are connected.
NOU. Notification Output Unit.
PCU. Power Supply and Charger Unit.
Power Supply. The part of the Fire Alarm Control Panel which provides the power needed to operate all control
panel modules, as well as needed to operate all electrically powered initiating devices and all notification
appliances.
Programming Tool. Refers to an external proprietary software package that allows the user to program the
panel.
PTU. Power Supply Transformer Unit.
Quick Test. Term pertaining to the test mode of the system that automatically resets after a service technician
tests the initiating devices.
ROU. Relay Output Unit.
Reset Condition. Condition in which the panel is forced to return to its normal state, usually performed by
pressing the “SYTEM RESET” button after all known events / conditions are cleared.
Supervisory. A signal indicating the operation of a supervisory device.
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