Installation Circuit Connections
34 XPIQ PN 51013:C 7/01/03
NACs Controlling an FCPS-24
TB5 through TB8 can also be used to trigger NACs (Notification Appliance Circuits) on an
FCPS-24 power supply. Supplying 24 VDC power to the FFT Riser will allow the outputs
from these terminals to be used for activation of one or more FCPS-24 power supplies. The
connections will be supervised by the XPIQ and a reverse polarity on these circuits will act as
a trigger for the FCPS-24.
As illustrated in Figure 2.8 on page 35, this application adds up to 6.0 amperes of notification
appliance power. The FCPS-24 can be configured for four Class B (Style Y) outputs or two
Class A (Style Z) and two Class B (Style Y) outputs. In this example, the XPIQ FFT/NAC
outputs will activate the remote power supply when reverse polarity activation occurs due to
an alarm condition. FFT/NAC circuit #1 will activate FCPS-24 outputs 1 & 2 while FFT/
NAC circuit #2 will activate outputs 3 & 4. Trouble conditions on the FCPS-24 power supply
are monitored by the XPIQ via FFT/NAC circuit connected to Control Input #1 of the
FCPS-24(E).
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