AFP-200 Instruction PN 15511:F2 10/11/99 27
¹ Trouble indicates a trouble signal will be generated at the control panel during the abnormal condition.
²Alarm Capability indicates an alarm signal can be transmitted to the control panel during the abnormal
condition.
³Loop operation meeting Style 7 requirements isolates entire physical zones on the communications loop from
faults that occur within other areas of the loop.
Figure 2-11 Communications Loop Performance
2.7 Wiring the Signaling Line Circuit
Communication with intelligent and addressable initiating monitor and control devices occurs through a signal-
ing line circuit (SLC) loop, often referred to as the communications loop. This SLC loop can be wired to meet
the requirements of NFPA Style 4 (see Figure 2-12), Style 6 (see Figure 2-13) or Style 7 (see Figure 2-14).
Isolator Modules
Isolator Modules (ISO-X) permit a zone of detectors and modules to be electrically isolated from the remainder
of the communications loop, allowing critical loop components to function in the event of a circuit fault (see the
figures on the following three pages). Isolator modules are required to meet the requirements of NFPA Style 7.
Monitor Modules
Addressable Monitor Modules (MMX Series) allow the control panel to monitor entire circuits of conventional,
alarm initiating devices, such as manual pull stations, smoke detectors, heat detectors, waterflow and supervisory
devices. A type of Monitor Module, the addressable MMX-101 provides point annunciation of manual pull
stations.
Control Modules
Through addressable control modules (CMX Series), the control panel can selectively activate Notification
Appliance Circuits or Form-C output relays.
Intelligent Detectors
Through the communications loop, the control panel communicates with intelligent ionization, photoelectric,
and thermal detectors.
Device Capacity
AFP-200 capacity includes up to 99 intelligent detectors and an additional combination of up to 99 addressable
pull stations, control modules, and Monitor Modules. In addition, the control panel also supports four Notifica-
tion Appliance Circuits and up to 99 programmable relays. Note: Refer to Appendix A and installation draw-
ings supplied with each loop device for rating and specification information.
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