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HIGH-EFFICIENCY OFFLINE SWITCHING including control-by-event links to other points.This allows the pro-
<br /> 3.0 A POWER SUPPLY(6.0 A IN ALARM gram to be entered with independent per-point segments, while
<br /> • 120 VAC(NFS-320/NFS-320C);240 VAC(NFS-320E). the NFS-320 simultaneously monitors other (already installed)
<br /> • Displays battery current/voltage on panel(with display). points for alarm conditions.
<br /> VeriFire®Tools is an offline programming and test utility that can
<br /> FlashScan, Exclusive greatly reduce installation programming time,and increase confi-
<br /> dence Detector Protocol in the site-specific software. It is Windows -based and pro-
<br /> World-Leadingvides technologically advanced capabilities to aid the installer.The
<br /> At the heart of the NFS-320 is a set of detection devices and installer may create the entire program for the NFS-320 in the
<br /> device protocol—FlashScan(U.S. Patent 5,539,389). FlashScan comfort of the office,test it,store a backup file,then bring it to the
<br /> is an all-digital protocol that gives superior precision and high site and download from a laptop into the panel.
<br /> noise immunity.
<br /> In addition to providing quick identification of an active input Placement of Equipment
<br /> device, this protocol can also activate many output devices in a in Chassis and Cabinet
<br /> fraction of the time required by competitive protocols. This high The following guidelines outline the NFS-320's flexible system
<br /> speed also allows the NFS-320 to have the largest device per loop design.
<br /> capacity in the industry—318 points—yet every input and output
<br /> device is sampled in less than two seconds.The microprocessor- Wiring:When designing the cabinet layout,consider separation of
<br /> based FlashScan detectors have bicolor LEDs that can be coded power-limited and non-power-limited wiring as discussed in the
<br /> to provide diagnostic information, such as device address during NFS-320 Installation Manual.
<br /> Walk Test. It is critical that all mounting holes of the NFS-320 are secured
<br /> with a screw or standoff to ensure continuity of Earth Ground.
<br /> ONYX Intelligent Sensing Networking: If networking two or more control panels, each unit
<br /> Intelligent sensing is a set of software algorithms that provides the requires a Network Communication Module or High-Speed Net-
<br /> NFS-320 with industry-leading smoke detection capability. These work Communication Module (HS-NCM can support two nodes;
<br /> complex algorithms require many calculations on each reading of see "Networking Options" on page 4). These modules can be
<br /> each detector, and are made possible by the high-speed micro- installed in any option board position(see manual),and additional
<br /> computer used by the NFS-320. option boards can be mounted in front of them.
<br /> Drift Compensation and Smoothing: Drift compensation allows
<br /> the detector to retain its original ability to detect actual smoke,and KDM-R2 Controls and Indicators
<br /> resist false alarms, even as dirt accumulates. It reduces mainte- Program Keypad:QWERTY type(keyboard layout).
<br /> nance requirements by allowing the system to automatically per- 12 LED Indicators: Power; Fire Alarm; Pre-Alarm; Security;
<br /> form the periodic sensitivity measurements required by NFPA 72. Supervisory; System Trouble; Signals Silenced; Points Disabled;
<br /> Smoothing filters are also provided by software to remove tran- Control Active;Abort;Pre-Discharge;Discharge.
<br /> sient noise signals, such as those caused by electrical interfer-
<br /> ence. Keypad Switch Controls: Acknowledge/Scroll Display; Signal
<br /> Silence;Drill;System Reset;Lamp Test.
<br /> Maintenance Warnings:When the drift compensation performed
<br /> for a detector reaches a certain level, the performance of the LCD Display:80 characters(2 x 40)with long-life LED backlight.
<br /> detector may be compromised, and special warnings are given.
<br /> There are three warning levels:(1)Low Chamber value;(2)Main- Product Line Information
<br /> tenance Alert, indicative of dust accumulation that is near but
<br /> below the allowed limit;(3)Maintenance Urgent, indicative of dust • "Configuration Guidelines"on page 3
<br /> accumulation above the allowed limit. • "Networking Options"on page 4
<br /> Sensitivity Adjust: Nine sensitivity levels are provided for alarm • "Auxiliary Power Supplies and Batteries"on page 4
<br /> detection.These levels can be set manually,or can change auto- • "Audio Options"on page 4
<br /> matically between day and night.Nine levels of pre-alarm sensitiv- • °Compatible Devices,EIA-232 Ports"on page 4
<br /> ity can also be selected,based on predetermined levels of alarm.
<br /> Pre-alarm operation can be latching or self-restoring,and can be • "Compatible Devices,EIA-485 Ports"on page 4
<br /> used to activate special control functions. • "Compatible Intelligent Devices"on page 4
<br /> Self-Optimizing Pre-Alarm: Each detector may be set for"Self- • "Enclosures,Chassis,and Dress Plates"on page 5
<br /> Optimizing"pre-alarm. In this special mode,the detector"learns" • "Other Options"on page 5
<br /> its normal environment,measuring the peak analog readings over
<br /> a long period of time, and setting the pre-alarm level just above CONFIGURATION GUIDELINES
<br /> these normal peaks. The NFS-320 system ships assembled; description and some
<br /> Cooperating Multi-Detector Sensing: A patented feature of options follow. See Enclosures, Chassis, and Dress Plates"on
<br /> ONYX intelligent sensing is the ability of a smoke sensor to con- page 5 for information about mounting peripherals.
<br /> sider readings from nearby sensors in making alarm or pre-alarm NOTE:Stand-alone and network systems require a main display.
<br /> decisions. Without statistical sacrifice in the ability to resist false On stand-alone systems,the panel's keypad provides the required
<br /> alarms,it allows a sensor to increase its sensitivity to actual smoke display. On network systems (two or more networked fire panel
<br /> by a factor of almost two to one. nodes), at least one NCA-2, NCS, or ONYXWorks annunciation
<br /> device is required.(For NCA-2,see DN-7047.)
<br /> Field Programming Options NFS-320: The standard, factory-assembled NFS-320 system
<br /> Autoprogram is a timesaving feature. The FACP "learns" what includes the following components:one control panel mounted on
<br /> devices are physically connected and automatically loads them in chassis (120 V operation —ships with grounding cable, battery
<br /> the program with default values for all parameters. Requiring less interconnect cables, and document kit); includes integral power
<br /> than one minute to run,this routine allows the user to have almost supply mounted to the main circuit board; one primary display
<br /> immediate fire protection in a new installation, even if only a por- KDM-R2 keypad/display;and one cabinet for surface or semi-flush
<br /> tion of the detectors are installed. mounting. Purchase batteries separately. One or two option
<br /> Keypad Program Edit (with KDM-R2) The NFS-320, like all boards may be mounted inside the NFS-320 cabinet; additional
<br /> NOTIFIER intelligent panels,has the exclusive feature of program option boards can be used in remote cabinets. (Non-English ver-
<br /> creation and editing capability from the front panel keypad,—ha'. sions also available.NFS 320 SP,NFS 320 PO.)
<br /> continuing to provide fire protection.The architecture of the NFS-320R:Same as NFS-320,but in red enclosure.
<br /> 320 software is such that each point entry carries its own program,
<br /> DN-7112:N•3/24/17—Page 3 of 6
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