Chapter 3: System operation 
134  P/N 3102351-EN • REV 005 • ISS 28DEC18 
Control buttons 
Common control buttons 
Common control buttons on the front panel perform a variety of functions. Table 39 below 
identifies the common controls and describes their functions. 
Table 39: Common controls 
  Description 
 
CMS devices (dialer and network card): Disables or enables the dialer and 
network CMS connection and purges all pending event transmission to the 
CMS. Has no effect on the alarm relay. 
Dialer set to modem only (and no network card CMS configured): Disables 
or enables the common alarm relay. 
Systems with a panel or device NAC configured as city tie: Disables or 
enables the city tie NACs. 
The button LED indicates that the function is active. 
Note: A minimum of a level one password is required to operate. 
 
Initiates a system reset. The button LED indicates the function is active. 
 
Silences the panel and annunciator sounders during an active trouble, 
supervisory, or alarm event and acknowledges new event activations. The 
button LED indicates the function is active. 
 
Silences notification appliances activated by an alarm condition. Pressing 
Signal Silence a second time turns NACs back on. The button LED 
indicates when the panel is in alarm and operating with notification 
appliances turned off. Visual and audible appliances may or may not turn 
off when Signal Silence is pressed depending on panel programming. 
 
Initiates a drill when the button is pressed for two seconds. The button LED 
indicates the function is active. 
Pressing drill a second time turns off the drill function. 
Note: Drill will not operate with an active alarm or supervisory event at the 
panel.