Simplex 2004 Series Operation Manual page 15

Function
Description
type
General Alarm (on-until-silence).
Use for NAC circuits containing only audible devices.
SSIG
If you use NAC circuits to connect external sync
modules, set coding pattern as Steady.
General Alarm (on steady-until-reset).
If you use NAC circuits to connect visual-only devices,
RSIG set coding pattern as Sync.
If you use NAC circuits to connect external sync
modules, set coding pattern as Steady.
NAC coding pattern
Temporal
Sync
Steady
20 BPM
120 BPM
-
-
-
Coding
Description
pattern
Standard Temporal coded pattern.
A three pulse coding pattern consisting of three
Temporal
1/2 second pulses, each separated by 1/2 second
silence. Each group of three pulses is separated by
1.5 seconds of silence.
Generates synchronization pulse for visual only
Synch
devices connected to NAC circuits.
Note: 60 BPM March-Time rate is used when both the QALERT function types are selected and either 20 BPM or 120 BPM is selected as
the NAC coding pattern.
Note: NAC is enabled and configured for QALERT function type with Temporal coding pattern. Both Silence/ Rest Inhibit and Alarm
Cutout Timer features are enabled. See Figure 3.
• Use DIP switch SW2-6 to enable or disable the Silence/Reset Inhibit feature.
The default switch position is OFF. To enable this feature turn the switch position to ON.
• Use DIP switch SW2-7 to enable or disable the Alarm Cutout Timer feature.
The default switch position is OFF. To enable this feature turn the switch position to ON.
page 13
Table 9: NAC function types
Table 10: DIP switch setting for NAC coding pattern configuration
SW2-3
0
0
0
0
1
1
1
1
Table 11: NAC coding patterns
Figure 3: DIP switch SW2 settings
2004 Foundation Series Fire Alarm Control Unit Operation Guide
Function
Description
type
General Alarm Horn/Strobe (Horn on-until-silence;
Strobe on-until-reset).
Use for NAC circuits containing both horns and
strobes.
QALERT
Note: If NFPA NAC is enabled (active), then both
horns and strobes will turn off on pressing silenced
key.
DIP switches 3 through 5
NAC-1
SW2-4
0
0
1
1
0
0
1
1
Coding
Description
pattern
Steady Steady On
20 BPM Slow March Time - 20 beats per minute (See note)
120 BPM Fast March Time - 120 beats per minute (See note)
SW2-5
0
1
0
1
0
1
0
1
579-1403 Rev A