Simplex 2004 Series User Manual

3 User interface
The user interface is used to operate the FACU.
Figure 1: User interface
3.1 Control unit buttons
3.1.1 ACK
Pressing the ACK key performs the following actions:
• Silences the piezo sounder
• Acknowledges all unacknowledged alarm, supervisory and trouble events.
• Changes the flashing LED to steady
• And sends acknowledge messages to the history file.
The ACK key does not have any effect on the NACs.
3.1.2 SILENCE
If an alarm exists, press the SILENCE key to turn off all silenceable outputs, such as NACs. The system turns on the ALARM SILENCED
LED. The system also sends an alarm silenced message to the history file.
Hold the SILENCE key for more than 10 seconds to perform a DACT test and send a test signal to the receiving station.
page 5 579-1403 Rev A
2004 Foundation Series Fire Alarm Control Unit Operation Guide

Simplex 2004 Series Specifications

General

Brand	Simplex
Model	2004 Series
Category	Control Unit
Language	English