Harrington-signal Tracker T8000 - Operation Manual Manuel d'utilisateur télécharger pdf (Page 23)

HSI #780-0923 FireSpy Tracker Operation Manual

Style Z- A Class A NAC configuration in which a circuit reports troubles from grounds, shorts, or opens,

and can operate the notification appliances with a single open and/or a single ground fault.

Style 4- A Class B signaling line circuit in which the circuit reports troubles on ground faults, shorts,

and/or opens, and can communicate an alarm with a single ground fault.

Style 6- A Class A signaling line circuit in which the circuit reports trouble on ground faults, shorts, and/or

opens, and can communicate an alarm with a single open or a single ground fault.

Style 7- A Class A signaling line circuit in which the circuit reports trouble on ground faults, shorts, and/or

opens, and can communicate an alarm with a single open, single ground, open and ground, or wire-to-

wire short. This is the same panel connection as Style 6, with specialized isolation modules included in

the loop.

Supervisory Alarm- A signal initiated by operation of a supervisory device.

Supervisory Device- A device monitoring the status of a fire sprinkler system, such as gate-valve

closure, unacceptable water level, low water pressure switch, low temperature, or unready fire pump.

Trouble Signal- A signal indicating a condition which may threaten normal system operation, such as a

circuit break, ground, power or equipment failure.

Walk Test- A test mode in which pre-selected initiating devices may be operated and indicate operation

without alarming the system.

Waterflow Switch- An assembly constructed and installed to detect water flow from one or more

sprinkler heads in a sprinkler system, thereby initiating an alarm signal.

Zone- An area grouping of inputs in the control panel for purposes of ordering the desired response.

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Harrington-signal Tracker T8000 - Operation Manual Manuel d'utilisateur Page 23