Chapter 1: Introduction
4 P/N 3102309-EN • REV 001 • ISS 18JUL19
Control/Indicator Description
Lamp Test: Pressing the Lamp Test button temporarily turns on all visual indicators on
the local control unit and the LCD screen cycles through colors to reveal any dead pixels.
The LED turns on as white while the button is pressed. When the button is released, the
LED is on steady as yellow, indicating that the command function is active, and turns off
when the function ends.
Note: If the local control unit is part of a command center, the lamp test is also executed
on all nodes within the command center.
System Function 1, System Function 2, System Function 3, or System Function 4:
Pressing the System Function button activates the response programmed for function.
The LED turns on as white while the button is pressed. When the button is released, the
LED is on steady as yellow, indicating that the command function is active, and turns off
when the function ends.
None: No action assigned.
Fire Drill button and LED
(button two default label
and setting)
This configurable button is programmed by default as Drill (Fire Drill).
The button can be configured in the 4-CU as:
Drill: Pressing the Fire Drill button activates the system drill response. Pressing the
button a second time cancels the drill response.
The LED turns on as white while the button is pressed. When the button is released, the
LED is on steady as yellow, indicating that the command function is active, and turns off
when the function ends.
Panel Silence: For local systems, pressing the Panel Silence button turns the operator
alert signal off and acknowledges all events have been reviewed.
For proprietary systems, the Panel Silence button is not operational. The operator alert
signal only silences after all events have been acknowledged.
The Panel Silence LED turns on as white while the button is pressed. When the button is
released, the LED is on steady as yellow, indicating the control unit is in an off-normal
condition and the control unit
has been placed in Panel Silence mode, and turns off when
the system returns to normal.
Note: The operator alert signal can be configured to resound at a regular interval to
remind the operator that the control unit has been silenced.
Alternate Alarm Sensitivity: Smoke detectors can operate using two levels of
sensitivity: primary and alternate. Pressing the Alternate Sensitivity button switches
Signature detectors to their alternate operating settings. Pressing the button a second
time switches them back to primary sensitivity levels.
The LED turns on as white while the button is pressed. When the button is released, the
LED is on steady as yellow, indicating that the command function is active, and turns off
when the function ends.
Acknowledge: Pressing the Acknowledge button acknowledges events.
For proprietary systems, pressing the Acknowledge button acknowledges an event and
turns the operator alert signal off when all events have been acknowledged in the order
displayed.
The LED turns on as white while the button is pressed. When the button is released, the
LED is on steady as yellow, indicating that the command function is active, and turns off
when the system returns to normal.
Lamp Test: Pressing the Lamp Test button temporarily turns on all visual indicators on
the local control unit and the LCD screen cycles through colors to reveal any dead pixels
The LED turns on as white while the button is pressed. When the button is released, the
LED is on steady as yellow, indicating that the command function is active, and turns off
when the function ends.
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