Simplex TrueAlarm 4008- 9121, Installation, Programming And Operating Instructions, Page: 15 / 86

Chapter 1. Overview
1-5
Photo and heat sensors mounted on sounder bases can be
installed and programmed to act as single station smoke
detectors. The sounder activates when the smoke or heat
sensor crosses its alarm threshold and turns off when the
smoke level goes below its threshold. (A general alarm fire
condition also occurs when the detector goes into alarm.)
Single Station programming allows you to set whether all
the other sounder bases turn on and turn off along with the
activated device.
User Interface
The user interface consists of control keys, LEDs, a 2-line
by 20-character, backlit LCD, and a sounder mounted in the
control panel. The purpose of the Operator and Menu keys is
listed below.
Figure 1-3 User Interface
Table 1-1 Operator Keys
Key Function
ALARM
ACK
Acknowledges any unacknowledged fire
alarms in the system, and scrolls
through the alarms in the active Alarm
List.
SUPV
ACK
Acknowledges any unacknowledged
supervisories in the system, and scrolls
through the supervisory conditions in the
active Supervisory List.
TROUBLE
ACK
Acknowledges any unacknowledged
troubles in the system, and scrolls
through the trouble conditions in the
active Trouble List.
ALARM
SILENCE
Silences any silenceable output types
(generally all audible notification appli-
ances).
SYSTEM
RESET
Allows the operator to reset all alarm
notification appliances and controls,
remove alarms from the Alarm List,
silence all silenceable outputs, reset
detectors, and return the system to a
normal state (provided that no alarm,
supervisory or trouble conditions are
present). The display indicates that a
reset is in progress and whether or not a
reset completes successfully.
Pressing the <SYSTEM RESET> key
will only attempt to return the system to
a normal, non-alarm state. All outputs
that were activated by the alarm will
remain active until all alarm inputs have
been restored and the reset was able to
successfully complete.
An open circuit fault on a Class A NAC
does not require a System Reset to
restore to normal.
Open circuit faults on the optional City
Connect module are cleared with a sys-
tem reset after the circuit has been
repaired.
MENU
The Menu key always brings you to the
top of the main menu structure unless
you are in the Programming menu.
FUNCTION
The Function Menu is displayed when
the <Function> key is pressed at the
high-level status screen. Use the <Previ-
ous> and <Next> keys to scroll through
the list of functions. The function key
provides access to commonly used con-
trol and display functions.
DISABLE/
ENABLE
The <Disable/Enable> key allows the
operator to quickly disable or enable any
point that is currently displayed. This key
is passcode protected. A confirmation
screen is displayed requesting <Enter>
be pressed before the actual enable or
disable is performed.
Table 1-1 Operator Keys (Continued)
Key Function
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