Chapter 3: Operating instructions
EST3X Technical Reference Manual 39
Operating states
The EST3X control panel operates in the normal, alarm, disable, supervisory,
trouble, monitor, test, and drill states.
Normal state
The system operates in the normal (or quiet) state in the absence of any events.
In the normal state, the Power LED is on and the LCD screen shows the time,
date, custom banner (if programmed), and the Alarm History count (see Figure 4
on page 19).
Alarm state
The control panel enters the alarm state (system off-normal) when a point signals
an alarm event. For example, a detector, pull station, or waterflow switch is
activated.
Output of the alarm state
Upon entering the alarm state, the control panel:
• Activates all common alarm outputs and common alarm relays
• Activates the common alarm contact on the main board
• Activates the first alarm pseudo point
• Changes the active state for the point that signaled the alarm event
Indication of the alarm state
To indicate it is in the alarm state, the control panel:
• Sounds the panel buzzer
• Flashes the Alarm LED
• Displays an event message in the Alarm Queue for the point that signaled the
alarm event
If the active point is an alarm zone and a control-display module is installed, the
control panel also flashes the zone’s alarm LED on the module.
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