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A.1 Correlations
Setup and configuration of an addressable system is different than a conventional system. In a conventional system, assignment of input
devices (smoke detectors, pull stations, heat detectors, etc.) to zones is accomplished through wiring. The wiring is direct from clearly
marked panel terminals to any device assigned to a particular zone. Connection of output devices (horns, bells, strobes, etc.) in a conven-
tional system is accomplished by direct wiring of the output devices to Notification Appliance Circuit terminals.
In an addressable system, a minimum of a single pair of wires (SLC communication loop) is used to connect all addressable input and
output devices. Communications between the FACP (Fire Alarm Control Panel) and all addressable devices takes place over the wire
pair which originates from the FACP. Software programming is used to configure the system as opposed to direct wiring. Zone assign-
ments are created via software means, hence the term software zones.
Setup of an NFW-50X software zone is accomplished by panel programming. Each addressable device can be assigned to a maximum of
five software zones. Each software zone, however, may have from 1 to 50 addressable input and output devices assigned to it.
Monitor modules, control modules and detectors comprise a group of 50 addresses, each device having a unique address from 1 to 50. Be
careful not to duplicate addresses between devices. Refer to the following page for an example of zoning.
In the example on the following page:
•
Zone 01 has the following addressable devices assigned to it:
smoke detectors with addresses 01 and 02
monitor module with address 03
monitor module with address 04 and 05
control modules with addresses 06, 07, 10, 11, and 13
•
Zone 02 has the following addressable devices assigned to it:
monitor module with addresses 04 and 05
smoke detectors with addresses 15 and 16
control modules with addresses 20, 11, and 21
•
Zone 03 has the following addressable devices assigned to it:
smoke detectors with addresses 22, 24, and 25
control module with address 30
control modules with addresses 11, 31, and 32
The example points out some of the key assignment features of the NFW-50X. Addresses of detectors, monitor modules and control
modules are not duplicated. The control module with address 11 is assigned to three software zones (providing floor above and floor
below). Be careful to properly plan the installation prior to installing any devices.
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Appendix A: Software Zones
NFW-50X Manual — P/N LS10129-001NF-E:C 7/25/2018
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