Presignal and Positive Alarm Sequence (PAS) Appendix B: Special Zone Outputs
NFS-640 Programming Manual P/N 51333:B 10/03/2003 81
Selecting Presignal and PAS Outputs
Presignal
You can set Presignal Delay Timer between 60 and 180 seconds. A Presignal Delay Timer does not
apply to the following:
• The System Alarm relay
• TM-4 polarity reversal alarm output
• TM-4 municipal box output
• UDACT
Positive Alarm Sequence (PAS)
Outputs selected for PAS delay for 15 seconds. Pressing the
ACKNOWLEDGE/SCROLL DISPLAY key
within the 15-second delay will set the Presignal Delay Timer to the full programmed value (60-180
seconds, including the PAS delay of 15 seconds). When an alarm comes from an initiating device with a
CBE list that includes F0, the control panel delays the following outputs:
• System Alarm relay
• TM-4 Polarity Reversal Alarm output
• TM-4 Municipal Box output
• UDACT
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