General
The NFS-640 intelligent Fire Alarm Control Panel is part of the
ONYXฎ Series of Fire Alarm Controls from NOTIFIER.
As a stand-alone small-to-large system, or as a large network,
the ONYXฎ Series of products meets virtually every application
requirement.
Designed with modularity and for ease of system planning, the
NFS-640 can be configured with just a few devices for small
building applications, or for a large campus or high-rise application.
Simply add additional peripheral equipment to suit the
application.

Features
• One, expandable to two, isolated intelligent Signaling Line Circuit (SLC) Style 4, 6 or 7.
• Up to 159 detectors (any mix of ion, photo, thermal, or multisensor) and 159 modules (N.O. manual stations, two-wire smoke, notification, or relay) per SLC. 318 devices per loop/636 per FACP or network node.
• Standard 80-character display, 640-character large display, or display-less (a node on a network).
• Network option – 103 nodes supported (NFS-640, NCA Network Annunciator, or NCS Network Control Station) using wire or fiber-optic connections.
• 6.0 amp switch mode power supply with four Class A/B builtin Notification Appliance Circuits (NAC). Selectable System Sensor strobe synchronization.
• Built-in Alarm, Trouble, and Supervisory relays.
• Up to 64 output circuits per FACP or network node; circuits configurable online.
• VeriFireฎ Tools offline program option. Sort Maintenance Reports by compensation value (dirty detector), peak alarm value, or address.
• Autoprogramming and Walk Test reports.
• Optional universal 636-point DACT.
• 80-character remote annunciators (up to 32).
• EIA-485 annunciators, including custom graphics.
• Printer interface (80-column and 40-column printers).
• History file with 800-event capacity in nonvolatile memory, plus separate 200-event alarm-only file.
• Alarm Verification selection per point, with tally.
• Autoprogramming and Walk Test reports.
• Positive Alarm Sequence (PAS) Presignal.
• Silence inhibit and Auto Silence timer options.
• March time / temporal / California two-stage coding / strobe synchronization.
• Field-programmable on panel or on PC, with VeriFireฎ Tools program check, compare, simulate.
• Full QWERTY keypad.
• Charger for up to 90 hours of standby power.
• Non-alarm points for lower priority functions.
• Remote ACK/Signal Silence/System Reset/Drill via monitor modules.
• Automatic time control functions, with holiday exceptions.
• Surface Mount Technology (SMT) electronics.
• Extensive, built-in transient protection.
• Powerful Boolean logic equations.

NCA 640-CHARACTER DISPLAY FEATURES:
• Backlit, 640-character display.
• Supports SCS Series smoke control system in both HVAC or FSCS modes (not UL-Listed for FSCS).
• Printer and CRT EIA-232 ports.
• EIA-485 annunciator and terminal mode ports.
• Alarm, Trouble, Supervisory, and Security relays.

FLASHSCANฎ INTELLIGENT FEATURES:
• Poll 318 devices in less than two seconds.
• Activate up to 159 outputs in less than five seconds.
• Multicolor LEDs blink device address during Walk Test.
• Fully digital, high-precision protocol (U.S. Patent 5,539,389).
• Manual sensitivity adjustment — nine levels.
• Pre-alarm intelligent sensing — nine levels.
• Day/Night automatic sensitivity adjustment.
• Sensitivity windows:
– Ion – 0.5 to 2.5%/foot obscuration.
– Photo – 0.5 to 2.35%/foot obscuration.
– Laser (VIEWฎ) – 0.02 to 2.0%/foot obscuration.
– Acclimate Plus™ – 0.5 to 4.0%/foot obscuration.
– HARSH™ – 0.5 to 2.35%/foot obscuration.
• Drift compensation (U.S. Patent 5,764,142).
• Degraded mode — in the unlikely event that the CPU-640 microprocessor fails, FlashScanฎ detectors revert to degraded operation and can activate the CPU-640 NAC circuits and alarm relay. Each of the four built-in panel circuits includes a Disable/Enable switch for this feature.
• Multi-detector algorithm involves nearby detectors in alarm decision (U.S. Patent 5,627,515).
• Automatic detector sensitivity testing.
• Maintenance alert (two levels).
• Self-optimizing pre-alarm.

VIEWฎ (VERY INTELLIGENT EARLY WARNING)
SMOKE DETECTION TECHNOLOGY:
• Revolutionary spot laser design.
• Advanced intelligent sensing algorithms differentiate between smoke and non-smoke signals (U.S. Patent 5,831,524).
• Addressable operation pinpoints the fire location.
• No moving parts to fail or filters to change.
• Early warning performance comparable to the best aspiration systems at a fraction of the lifetime cost.

ACCLIMATE PLUS™
LOW-PROFILE INTELLIGENT MULTI-SENSOR:
• Detector automatically adjusts sensitivity levels without operator intervention or programming. Sensitivity increases with heat.
• Microprocessor-based technology; combination photo and thermal technology.
• FlashScanฎ or classic mode compatible with NFS-640.
• Low-temperature warning signal at 40ฐF ฑ 5ฐF (4.44ฐC ฑ 2.77ฐC).

HARSH™ HOSTILE-AREA SMOKE HEAD:
• Provides early warning of smoke detection in environment where traditional smoke detectors are not practical.
• The detector's filters remove particulates down to 30 microns in size.
• Intake fan draws air into photo chamber, while airborne particles and water mist are removed.
• Requires auxiliary 24 VDC from system or remote power supply.

RELEASING FEATURES:
• Ten independent hazards.
• Sophisticated cross-zone (three options).
• Delay timer and Discharge timers (adjustable).
• Abort (four options).
• Low-pressure CO2 listed.

VOICE AND TELEPHONE FEATURES:
• Solid state message generation.
• Hard-wired voice control module options.
• Firefighter telephone option.
• 30- to 120-watt high-efficiency amplifiers (AA Series).
• Backup tone generator and amplifier option.
• Multichannel voice transponder (XPIQ). HIGH-EFFICIENCY OFFLINE SWITCHING 3.0 AMP POWER SUPPLY (6.0 A IN ALARM):
• 120 or 220/240 VAC.
• Displays battery current/voltage on panel (with display).

System Capacity
• Intelligent Signaling Line Circuits ..................1 expandable to 2
• Intelligent detectors .........................................159 per loop
• Addressable monitor/control modules ..........159 per loop
• Programmable internal hardware and
output circuits (4 standard) ................................68
• Programmable software zones.......................99
• Special programming zones ..........................14
• LCD annunciators per CPU-640/-640E
 and NCA (observe power).................................32
• ACS annunciators per CPU-640/-640E ........32 address x 64 points
• ACS annunciators per NCA.............................32 address x 64 or 96 points
NOTE: The NCA supports up to 96 annunciator address points per ACM-24/48.

Specifications
• Primary input power, CPU-640 board: 120 VAC, 50/60 Hz, 3.0 amps. CPU-640E board: 220/240 VAC, 50/60 Hz, 1.5 Amps.
• Total output 24 V power: 6.0 A in alarm.
NOTE: The power supply has a total of 6.0 Amps of available power. This is shared by all internal modules.
• Standard notification circuits (4): 2.5 A each.
• Four-wire detector power: 1.25 A.
• Non-resettable regulated power outputs: 1.25 A each.
• Battery charger range: 12 AH – 55 AH. Use separate cabinet for batteries over 25 AH.
• Optional high-capacity (25 – 120 AH) battery charger: CHG-120 (see CHG-120 data sheet, DN-6040).
• Float rate: 27.6 V.

Temperature and Humidity Ranges
This system meets NFPA requirements for operation at 0 –
49บC/32 – 120บF and at a relative humidity 93% ฑ 2% RH
(noncondensing) at 32บC ฑ 2บC (90บF ฑ 3บF). However, the
useful life of the system's standby batteries and the electronic
components may be adversely affected by extreme temperature
ranges and humidity. Therefore, it is recommended that
this system and its peripherals be installed in an environment
with a normal room temperature of 15 – 27บC/60 – 80บF.
Agency Listings and Approvals

The listings and approvals below apply to the basic NFS-640
control panel. In some cases, certain modules may not be listed
by certain approval agencies, or listing may be in process. Consult
factory for latest listing status.
• UL: S635
• ULC: CS118
• FM APPROVED Exceptions – CPU-640E, PRN-5, Proprietary service
• CSFM: 7165-0028:214, 7170-0028:216
• MEA: 317-01-E
• City of Chicago
• City of Denver
• Lloyd’s Register: 02/60007
• U.S. Coast Guard: 161.002/42/1
• China Classification Society (CCS): #NL05T00001 (NFS-640E)
• CCCF: Certif. # 2003081801600815 Standards

The NFS-640 complies with the following UL Standards and NFPA 72 Fire Alarm Systems requirements :
– UL 864 (Fire)
– UL 1076 (Burglary)
– LOCAL (Automatic, Manual, Waterflow and Sprinkler Supervisory).
– AUXILIARY (Automatic, Manual and Waterflow) (requires 4XTMF).
– REMOTE STATION (Automatic, Manual and Waterflow) (requires 4XTMF).
– PROPRIETARY (Automatic, Manual and Waterflow). Not applicable for FM.
– EMERGENCY VOICE/ALARM.