4. Operation Coded Operation - NAC 01 and NAC 02
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AFP-100/AFP-100E Instruction PN 51010:C1 02/06/2002
Coded Operation - NAC 01 and NAC 02
Shown below are the pulse rate outputs via NAC 01 or NAC 02 when coded operation is selected.
Table 10 Pulse Rates for NAC Coded Selections
Presignal
Presignal is used to delay output activation (control modules and NACs) while allowing for visual
verification by a person. Once a detector or monitor module triggers an alarm, the panel sounder
sounds immediately, but the Notification Appliance Circuits are not activated for 15 seconds. During
this time, if the
ACKNOWLEDGE
/
STEP
key is pressed, the panel sounder is silenced and the notification
appliances will not activate for up to three minutes. After three minutes, the NACs will activate if the
source of the alarm is not cleared. This does not affect monitor modules programmed as waterflow or
supervisory.
Note: Presignal operation requires the approval of the local Authority Having Jurisdiction.
Code Selection Pulse Rate
Continuous Continuous
March Time Pulses at 120 ppm (pulses per minute)
Temporal Code Pulses at ½ second On, ½ second Off, ½ second On,
½ second Off, ½ second On, 1½ seconds Off
California Code 10 seconds On, 5 seconds Off
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