Description
The Synchronized Function Module (SFM) is designed to allow Non-Addressable Horns, Strobes, and Audible/Visible units to be put on the same Notification Appliance Circuit (NAC). This allows the silencing of the Horns without deactivation of the Strobes. The SFM connects to and derives power from a reverse polarity Notification Appliance Circuit (NAC). It activates the visible appliances when the NAC is in the forward polarity (alarm state), and uses energy from this circuit to power the attached Non-Addressable (or other) notification appliances.
When the NAC is in the reverse polarity, or supervision state, the SFM is off, and connects the NAC to the units wiring for traditional appliance supervision.
The SFM uses a 2nd circuit from the panel to control operation of audible appliances connected to the SFM output. The SFM also supports Class A wiring configurations, and synchronization across multiple Non Addressable NACs.
