Fire-Lite MS-9050UDC Addressable Fire Alarm Control Panel - Manual (Page 134)

134 MS-9050 Series Manual — P/N 52413:G 4/14/2014
Operating Instructions Presignal
4.18 Presignal
Presignal option programs an initiating device to delay the activation of NACs and/or control mod-
ules 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 pro-
grammed time duration of up to three minutes. Note that the alarm relay and communicator will
respond to the initial alarm immediately. In addition, Zone 18 will activate. This zone can be pro-
grammed 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 18 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 imme-
diately, 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 18 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 moni-
toring or remote switches. Presignal operation requires the approval of the local Authority Having
Jurisdiction.
4.19 Positive Alarm Sequence
PAS (Positive Alarm Sequence) option will program a detector to delay panel activation (including
alarm relay and communicator) for a period of 15 seconds. Zone 17, however, will activate imme-
diately and may be used to connect a signaling device to indicate PAS activation. Do not assign
Zone 17 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 pre-
vented 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 dura-
tion 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 appro-
priate output 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 17 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 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.