Appendix a, Coding selection, Two stage operation – Fire-Lite PS-Tools MS-9200UDLS User Manual
Page 109: Appendix, A.1 coding selection a.2 two stage operation
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Appendix
Coding Selection
The Coding feature allows you to specify the type of output the main circuit board NAC generates,
when activated. The various coding selections are:
•
Steady - a continuous output with no coding.
•
March Time - 120 ppm (pulse-per-minute) output.
•
California - 10 seconds on and 5 seconds off.
•
Temporal - ½ second on, ½ second off, ½ second on, ½ second off, ½ second on, 1½ second
off.
•
Two Stage 3 Minutes or 5 Minutes - For more information about Two Stage Operation, see
•
Synchronized output for System Sensor, Wheelock, Gentex, Faraday, or Amseco. For more
information about Synchronized NAC Operation, see
Two Stage Operation
Two Stage operation consists of the following:
•
1st stage output - 20 ppm (pulse-per-minute) coding
•
2nd stage output - Temporal coding
If Two Stage operation is programmed as the Coding option, the following sequence of events
occurs during an alarm.
1.
The on-board NACs are activated with a 1st stage output on activation of any alarm point.
2.
If the activated alarm point is directly mapped to a zone which is programmed to an on-board
NAC, that NAC goes directly to 2nd stage coding output. All other NACs not directly
mapped to the activated alarm point’s zone but assigned to Zone 0, activate with a 1st stage
output.
3.
If, after the programmed time of 3 or 5 minutes, the Acknowledge switch is not pressed, all
NACs presently in 1st stage activation go to the 2nd stage activation.