Chapter 3: System operation 
P/N 3102351-EN • REV 005 • ISS 28DEC18  127 
Operation overview 
Front panel display 
The front panel display is the user interface for the control panel. The display is comprised of 
the LCD, LED indicators, and control buttons that are used to operate and program the panel. 
Figure 47: Front panel display layout 
 
(1)  LCD display 
(2)  Control buttons 
Control panel operations 
The control panel operates in either normal mode or off-normal mode. 
Normal mode 
The panel operates in normal mode in the absence of any alarm, supervisory, trouble, or 
monitor events. In normal mode, the control panel monitors the system. The panel and LCD 
remote annunciators display the time, date, and banner text, if programmed. 
Off-normal mode 
The panel operates in off-normal mode any time an event is introduced into the system. When 
this happens, the panel: 
•  Changes contact positions on appropriate common relays 
•  Activates alarm outputs (for alarm events only) 
•  Turns on the appropriate LEDs and the panel buzzer