AFP-200 Instruction PN 15511:F2 10/11/99 63
4.9 Notification Appliance Circuit Operation
The four Notification Appliance Circuits have Control-by-Event and trouble functions similar to CMX modules
on the communications loop. The circuits differ from CMX modules in the following ways:
• Addresses (last three digits in LCD field ) are B01, B02, B03 or B04.
• The default type code field is “BELL CIRCUIT.”
• Circuits may be used for March Time, California Code, Temporal, and Two Stage coded functions. (CMX
modules may not be used for these functions.)
4.10 Control-By-Event Operation
Control-by-event (CBE) is done through 99 software zones. Each system point (detector, MMX, CMX or
Notification Appliance Circuit) may list up to five zones in its program information. A general alarm zone
(Z00) may be listed for output (control) points, but is not necessary to list for input points. Z00 is not activated
by non-alarm or supervisory points.
If any input device (detector or MMX) becomes active and it is not disabled, it activates all software zones in its
list. An output device (CMX module or Notification Appliance Circuit) that is not disabled is turned on if any
of the software zones in its list are active. This is basically an “OR” functionality. Zones 90 through 99 are
reserved for special functions such as cross-zoning (Refer to the Programming section).
4.11 Releasing Functions
Zones 91, 92, 93, and 94 are reserved for special releasing functions. This allows for up to four simultaneous
release operations (quad hazard). Each zone includes the following:
• Cross Zone will activate only if two or more fire type input points are activated that list this zone. In addition,
there are two other types of cross-zones One cross zone requires that the two devices reside in different zones;
and the other requires that the two devices are a smoke detector plus a heat detector.
• Delay timer allows the selection of a 0 to 60 second delay before the zone can activate.
• Abort switch-type code in a given zone is used to abort activation of the zone.
• Manual Release overrides the abort function, cross-zone function, and delay timer, and activates the zone
immediately.
• Soak Timer automatically shuts off the releasing device. Select 10 through 20 minutes (or zero for no timer).
A hazard is protected by assigning one of the four zones to each initiating device, Abort Switch, Manual Release
Switch, and Release Solenoid. Refer to Appendix D for detailed information about releasing applications.
4.12 Intelligent Detector Functions
Analog Display
The control panel reads and displays analog information from the 99 analog detectors. The display is in percent
obscuration per foot for photoelectric detectors and percent of the alarm threshold for ionization detectors.
Sensitivity Adjust
Alarm levels for the intelligent detectors may be manually set within the UL range. There are three selections:
High, medium, or low for ionization detectors; and 2.0%, 1.5% or 1.0% obscuration per foot for photoelectric
detectors. Ionization detectors used in duct applications must be set to high sensitivity.
Day/Night Sensitivity Operation
The system can be programmed to automatically force the smoke detectors to their minimum sensitivity (2.0%)
during the “day.” For more information, refer to Section 4.13, Time Functions.
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