NFS-640 Operations Manual P/N 51334:B 10/03/2003 13
1. Introduction
Product Description
The NFS-640 is a modular, intelligent Fire Alarm Control Panel (FACP) with an extensive list of
powerful features suitable for most applications.
Operating Features
• Alarm Verification selection, to reduce unwanted alarms, for intelligent detector points
• Positive Alarm Sequence (PAS) and Presignal per NFPA 72
• Silence Inhibit timer and Auto Silence timer for Notification Appliance Circuits (NACs)
• March time/temporal code for Notification Appliance Circuits (NACs) and Panel Circuit
modules
• Programmable Signal Silence, System Reset, and Alarm Activate functions through monitor
modules
• Automatic time-of-day and day-of-week control functions, with holiday option
• AWACS (Advanced Warning Addressable Combustion Sensing) with nine field-adjustable
Pre-Alarm levels with programmable Control-By-Event (CBE)
• Operate automatic smoke or heat detector sounder base on action Pre-Alarm level, with
general evacuation on alarm level
• Security alarm point option with separate audible signal code
• Centralized voice paging and audible alarm signaling options
• Programmable Control-By-Event control of outputs from individual alarm or supervisory
addressable devices
• Networks with other FACPs and equipment for large applications.
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