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Operating Instructions
MS-9200UDLS PN 52750:E1 01/27/09 165
4.19 Positive Alarm Sequence
PAS (Positive Alarm Sequence) option will program a smoke detector to delay panel activation
(including alarm relay and communicator) for a period of 15 seconds. Zone 97, however, will
activate immediately and may be used to connect a signaling device to indicate PAS activation. Do
not assign Zone 97 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 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 97 will activate
ACS annunciators (if enabled) will pulse the Zone 97 PAS LED immediately upon PAS
activation. They will sound the local piezo, and pulse the alarm, associated zone and
detector address point LEDs after 15 seconds of an unacknowledged PAS activation. Note
that if the Alarm Silence or Acknowledge/Step button is pressed, the annunciators will be
inhibited from activating for an additional time delay
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 deactivated. 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 PA S
BYPASS.