Zone Wirings (1 A 12 Connectors) - Honeywell NFS Supra Installation And Operating Manual

Conventional fire alarm control panel

Table of Contents

NFS Supra

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

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 status thresholds

to 1.9 Vdc

Short Circuit

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