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Operating Instructions
Important: When a Notification Appliance Circuit with a mix of audible and visual devices is programmed for silenceable and the syn-
chronization feature is selected, only the audible devices will be turned off if the Silence key is pressed. The visual devices (strobes, etc.)
will continue to operate.
4.18 Coded Operation
The NAC circuits resident on the control panel main circuit board can be programmed for coded operation. The available pulse rates
which can be programmed for coded operation are as follows:
•
Continuous:
•
March Time:
•
Temporal 3 Code:
•
Temporal 4 Code:
•
California Code:
•
Two-Stage
4.19 Presignal
Presignal option programs an initiating device to delay the activation of NACs and/or control modules while allowing visual verification
by a person. Once a detector or monitor module triggers an alarm, the onboard piezo sounds immediately, but the NACs are not activated
for a user programmed time duration of up to three minutes. Note that the alarm relay and communicator will respond to the initial alarm
immediately. In addition, Zone 048 will activate. This zone can be programmed to a control module which may be used to activate a
sounder or indicator which the installer designates as a Presignal indication. Do not assign Zone 048 to a Notification Appliance Circuit
when using this zone to indicate a Pre-signal condition.
After the programmed delay, the NACs will activate if the source of the alarm is not cleared. Note that if a second alarm occurs during
the programmed time delay, the alarm will be processed immediately, causing activation of the appropriate output zones. The events
which occur upon Presignal activation are as follows:
onboard piezo sounds immediately
control panel LCD display will indicate a presignal event and the active point
control points programmed to Zone 048 will activate
annunciators (if enabled) will sound the local piezo, and pulse the alarm LED and zone LED
outputs (NACs and control modules) of associated zones will be inhibited from activating for a user programmed time delay of
up to three minutes
second alarm occurring anytime during the time delay will cause immediate activation of all associated outputs
Presignal does not affect monitor modules programmed as waterflow, supervisory, process monitoring or remote switches. Presignal
operation requires the approval of the local Authority Having Jurisdiction.
4.20 Positive Alarm Sequence
PAS (Positive Alarm Sequence) option will program a smoke detector to delay panel activation (including alarm relay and communica-
tor) for a period of 15 seconds. Zone 047, however, will activate immediately and may be used to connect a signaling device to indicate
PAS activation. Do not assign Zone 047 to a Notification Appliance Circuit when using this zone to indicate a PAS condition.
When a detector triggers an alarm, the onboard piezo sounds immediately, but the NACs are prevented from activating for 15 seconds.
This inhibit time is factory set and cannot be changed. Pressing the Alarm Silence or Acknowledge/Step key during the 15 second inhibit
time will silence the piezo sounder and start a timer which prevents activation of NACs for an additional time duration which can be user
programmed for up to three minutes. After the programmed delay, the NACs will activate if the source of the alarm is not cleared. Note
that if a second alarm occurs during either time delay, the alarm will be processed immediately, causing activation of the appropriate out-
put zones. The events which occur upon PAS activation are as follows:
onboard piezo sounds immediately
control panel LCD display will indicate a presignal event and the active point
control points programmed to Zone 047 will activate
outputs (NACs and control modules) of associated zones will be inhibited from activating for a factory set duration of 15
seconds
pressing the Alarm Silence or Acknowledge/Step key will start a timer which inhibits output activation for additional time delay
of up to three minutes which is user programmable
second alarm occurring anytime during either time delay will cause immediate activation of all associated outputs
PAS operation requires the approval of the local Authority Having Jurisdiction.
Note that the PAS BYPASS monitor type code, when activated, will inhibit the PAS capability until the PAS BYPASS monitor is deacti-
vated. While PAS is inhibited, signaling devices will immediately place the control panel into alarm. This feature may be employed by
wiring a normally open device, such as a switch, to a monitor module which has been programmed for PAS BYPASS.
108
Steady output with no pulsing
Pulses at 120 ppm (pulses per minute)
Pulses at 1/2 second On, 1/2 second Off, 1/2 second On, 1/2 second Off, 1/2 second On, 1-1/2 second Off
Pulses at 1/2 second On, 1/2 second Off, 1/2 second On, 1/2 second Off, 1/2 second On, 1/2 second On, 1/2
second Off, 1-1/2 second Off
10 seconds On, 5 seconds Off
Pulses at 20 ppm (pulses per minute) for 3 or 5 minutes (depending on programming) and then changes to
Temporal
NFW-50X Manual — P/N LS10129-001NF-E:C 7/25/2018
Coded Operation
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