Fire Alarm FREE cabling and networking Helpdesk
 Question by Narayanan Ganesh posted 21 Jan 2006
 Fire Alarm
What is mean by SLC wiring and NAC wiring in Fire alarm system?
 Answer by Joseph Golan posted 21 Jan 2006
Dear Narayanan,

SLC = Signaling Line Circuit and is used to connect typically multiple smoke detectors on a single loop.

NAC = Notification Appliance Circuit which typical controls horns or strobes.

Joseph Golan, RCDD

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