NFS-640 Installation Manual P/N 51332:B1 12/01/2003 11
Section 2 System Overview
2.1 System Description
The NFS-640(E) control panel is a modular, intelligent fire alarm control panel (FACP) with an
extensive list of powerful features. The control panel integrates a central processing unit (CPU), a
6 amp power supply, and a battery charger. This is combined with a mounting chassis and cabinet to
create a complete fire alarm control system. The panel supports FlashScan protocol and has network
capabilities. A single SLC loop is supported with the basic equipment package; a second SLC loop can
be added by attaching an optional loop expander module (LEM-320).
Modular devices mount to the chassis to provide additional output circuits, including voice and
telephone modules to form a complete voice evacuation system. Five cabinet options for enclosing
system components are available.
The control panel has the capacity for installing up to 636 addressable points; 159 detectors and 159
monitor/control modules per SLC (Signaling Line Circuit).
2.1.1 Standard Features
• Uses Notifier’s VIEW® early warning fire detection and the FlashScan® or Classic Loop Interface
Protocol (CLIP) families of detectors and modules
• Four standard Notification Appliance Circuits (NAC), Class A or B
• Alarm, Trouble, Supervisory and Security relays
• Support for 32 annunciator addresses, with 10 special annunciator groups
• Supports Style 4, Style 6, Style 7 SLC loops
• Connections to easily mount an expander board to add a second SLC loop
• Releasing service using on-board NACs or FCM-1 modules
• Logic Equations
• Display scroll selection
• Alarm verification supervisory indication (NYC)
• Supervisory duct detectors
• Supports Advanced Warning Addressable Combustion Sensing (AWACS) algorithms
• Network operation
• Battery charger supports 12-55 amp hour sealed lead-acid batteries
• EIA-485 connections for wiring ACS annunciators (including LDM custom graphic annunciators),
TM-4 transmitter
• EIA-232 connections for printer, CRT, printer/CRT, or network operation
• Autoprogram feature for faster programming of new devices
• The control panel provides 6.0 amps of usable output power in an alarm condition; it provides
3.0 amps of usable output power in normal or continuous operating conditions
• Diagnostic LEDs and switches
• Ground fault detection
• Battery and battery-charger supervision, voltage-monitoring, and current-monitoring
• Panel circuit modules support up to 64 circuits
• Programmable for strobe synchronization
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