2  1200C-2000C Fire Alarm Control Panel and Repeater User Manual 
User interface controls 
Key switch operation 
The key switch is used to restrict the operation of the fire panel controls. 
Table 1: Key switch enable/disable 
Position Status Description 
 
Disabled  Panel operation is restricted. 
 
Enabled  Panel operation is not restricted. 
 
The Silence Buzzer and Test buttons operate with the key switch in any position. 
User interface controls  
The user interface has 20 buttons, 10 of which are alphanumeric. The remaining 10 
are described below. 
Table 2: Description of the control panel user interface controls 
Button Description 
 
Alpha selection (when using the alphanumeric buttons) 
 
Display the most recent alarm 
 
Print the current screen 
 
Scroll between Alarm, Fault and Conditions. View additional information when the 
"MORE" prompt appears on the LCD screen. 
 
Exit a menu 
 
Enter or confirm a value or selection 
 
Move to the next field on the LCD screen 
 
Move to the previous field on the LCD screen