Canadian DN-60085:J • 12/20/2013 — Page 3 of 6
V
OICE
F
EATURES
•
Integrates with FirstCommand Series.
See DN-60772.
Note: Only NFC-50/100 and NFC-LOC are approved for
Canadian applications.
H
IGH
-
EFFICIENCY
OFFLINE
SWITCHING
3.0 A
POWER
SUPPLY
(6.0 A
IN
ALARM
)
•
120 VAC.
•
Displays battery current/voltage on panel (with display).
FlashScan, Exclusive
World-Leading Detector Protocol
At the heart of the NFS-320C is a set of detection devices and
device protocol — FlashScan (U.S. Patent 5,539,389). FlashS-
can is an all-digital protocol that gives superior precision and
high noise immunity.
In addition to providing quick identification of an active input
device, this protocol can also activate many output devices in a
fraction of the time required by competitive protocols. This high
speed also allows the NFS-320C to have the largest device per
loop capacity in the industry — 318 points — yet every input
and output device is sampled in less than two seconds. The
microprocessor-based FlashScan detectors have bicolor LEDs
that can be coded to provide diagnostic information, such as
device address during Walk Test.
ONYX Intelligent Sensing
Intelligent sensing is a set of software algorithms that provides
the NFS-320C with industry-leading smoke detection capabil-
ity. These complex algorithms require many calculations on
each reading of each detector, and are made possible by the
high-speed microcomputer used by the NFS-320C.
Drift Compensation and Smoothing:
Drift compensation
allows the detector to retain its original ability to detect actual
smoke, and resist false alarms, even as dirt accumulates. It
reduces maintenance requirements by allowing the system to
automatically perform the periodic sensitivity measurements
required by NFPA 72. Smoothing filters are also provided by
software to remove transient noise signals, such as those
caused by electrical interference.
Maintenance Warnings:
When the drift compensation per-
formed for a detector reaches a certain level, the performance
of the detector may be compromised, and special warnings
are given. There are three warning levels: (1) Low Chamber
value; (2) Maintenance Alert, indicative of dust accumulation
that is near but below the allowed limit; (3) Maintenance
Urgent, indicative of dust accumulation above the allowed limit.
Sensitivity Adjust:
Nine sensitivity levels are provided for
alarm detection. These levels can be set manually, or can
change automatically between day and night. Nine levels of
pre-alarm sensitivity can also be selected, based on predeter-
mined levels of alarm. Pre-alarm operation can be latching or
self-restoring, and can be used to activate special control func-
tions.
Self-Optimizing Pre-Alarm
: Each detector may be set for
“Self-Optimizing” pre-alarm. In this special mode, the detector
“learns” its normal environment, measuring the peak analog
readings over a long period of time, and setting the pre-alarm
level just above these normal peaks.
Cooperating Multi-Detector Sensing:
A patented feature of
ONYX intelligent sensing is the ability of a smoke sensor to
consider readings from nearby sensors in making alarm or
pre-alarm decisions. Without statistical sacrifice in the ability to
resist false alarms, it allows a sensor to increase its sensitivity
to actual smoke by a factor of almost two to one.
Field Programming Options
Autoprogram
is a timesaving feature. The FACP “learns” what
devices are physically connected and automatically loads
them in the program with default values for all parameters.
Requiring less than one minute to run, this routine allows the
user to have almost immediate fire protection in a new installa-
tion, even if only a portion of the detectors are installed.
Keypad Program Edit (with KDM-R2)
The NFS-320C, like all
NOTIFIER intelligent panels, has the exclusive feature of pro-
gram creation and editing capability from the front panel key-
pad,
while continuing to provide fire protection
. The
architecture of the NFS-320C software is such that each point
entry carries its own program, including control-by-event links
to other points. This allows the program to be entered with
independent per-point segments, while the NFS-320C simulta-
neously monitors other (already installed) points for alarm con-
ditions.
VeriFire® Tools is an offline programming and test utility that
can greatly reduce installation programming time, and
increase confidence in the site-specific software. It is Win-
dows®-based and provides technologically advanced capabili-
ties to aid the installer. The installer may create the entire
program for the NFS-320C in the comfort of the office, test it,
store a backup file, then bring it to the site and download from
a laptop into the panel.
Placement of Equipment
in Chassis and Cabinet
The following guidelines outline the NFS-320C’s flexible sys-
tem design.
Wiring:
When designing the cabinet layout, consider separa-
tion of power-limited and non-power-limited wiring as dis-
cussed in the
NFS-320/C/E Installation Manual
.
It is critical that all mounting holes of the NFS-320C are
secured with a screw or standoff to ensure continuity of Earth
Ground.
Networking:
If networking two or more control panels, each
unit requires a Network Communication Module or High-
Speed Network Communication Module (HS-NCM can sup-
port two nodes; see “Networking Options” on page 5). These
modules can be installed in any option board position (see
manual), and additional option boards can be mounted in front
of them.
KDM-R2 Controls and Indicators
Program Keypad:
QWERTY type (keyboard layout).
12 LED Indicators:
Power; Fire Alarm; Pre-Alarm; Security;
Supervisory; System Trouble; Signals Silenced; Points Dis-
abled; Control Active; Abort; Pre-Discharge; Discharge.
Keypad Switch Controls:
Acknowledge/Scroll Display; Signal
Silence; Drill; System Reset; Lamp Test.
LCD Display:
80 characters (2 x 40) with long-life LED back-
light.
