NFS Supra
Page 27
HLS-MN-025 v.04
Installation and Operating Manual
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www.hoeywelllifesafety.es
4.4.1 Zone Wirings (1 a 12 connectors)
Detector and call point wiring must be separated from other conduits with different voltage or usage.
NFS Supra control panel has four, eight or twelve alarm zones
.
Detectors and Call Points can be connected to the same zone wire, and the system identifies through the zone led if the alarm comes from
detectors (flashing
led)
or
call points (steady led)
. Moreover, call point alarm may clear programmed delays, in compliance with EN54/2.
However, when installing detectors and call points in the same zone line, please, make sure other local regulations are followed.
NFS Supra control panels support an unlimited number of call points per line but some local regulations may limit this number. Please, check the current and
applicable regulations before installing alarm devices.
End of line (EOL)
Zones lines must be terminated with the supplied,
47µF capacitor
or 4K7
, resistor. The EOL resistor make zone stable to 24 V(normal/quiescent status).
The EOL resistor must be installed in each zone, including not used zones.
ZONE CIRCUITS
47 µF Capacitor (by default)
or 4K7
Ω Resistor
Zone status thresholds
0 to 1.9 Vdc
Short Circuit
2 to 7.4 Vdc
MCP Alarm
7.5 to 19 Vdc
Detector Alarm
19 to 25.5 Vdc
Normal
25.6 to 27.5 Vdc
Open Circuit
Installation