10 NFS-320/E/C, NFS-320SYS/E Operations Manual — P/N 52747:E1 06/16/2011General Information Introduction to the Control Panel1.2.4 Shortcuts to Operating FunctionsTo the left of each program function, you’ll find a keypad shortcut, which contains aseries of keypad entries required to access the program function. All shortcuts startwith the control panel in normal operation.For example, the keypad shortcut to the left, shows how to enter the Read Statusfunction with the control panel in normal operation, as well as how to exit thefunction.1.3 Introduction to the Control PanelThe NFS-320 is a modular, intelligent Fire Alarm Control Panel (FACP) with features suitable formost applications. Following is a list of operating features available.• 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)• Programmable Signal Silence, System Reset, and Alarm Activate functions through monitormodules• Automatic time-of-day and day-of-week control functions, with holiday option• Intelligent Sensing with nine field-adjustable Pre-Alarm levels with programmableControl-By-Event (CBE)• Operate automatic smoke or heat detector sounder base on action Pre-Alarm level, withgeneral evacuation on alarm level• Security alarm point option with separate audible signal code• Audible alarm signaling options• Programmable Control-By-Event control of outputs from individual alarm or supervisoryaddressable devices• Networks with other FACPs and equipment for large applications.