Correlations | Software Zones |
APPENDIX A | Software Zones |
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 conventional 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 assignments are created via software means, hence the term software zones.
Setup of an
Monitor and control modules comprise one group of 99 addresses, with each module having a unique address from 1 to 99. Detectors comprise a separate group of 99 addresses, each detector having a unique address from 1 to 99 in its group. Be careful not to duplicate addresses within any one group (modules and detectors). 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:
SD350 smoke detectors with addresses 01 and 02
•Zone 02 has the following addressable devices assigned to it:
CP350 smoke detectors with addresses 03 and 04
•Zone 03 has the following addressable devices assigned to it:
SD350 smoke detectors with addresses 05, 06 and 07
The example points out some of the key assignment features of the
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