Notification Appliances—SCM Synchronization (Sync) Control Module 9
Figure 4: SCM Sync Control Module Wiring Diagram
Sync strobe signals have in/out wiring terminals that accept two
No. 12 to 18 AWG wires at each screw terminal.
1.
Strip wire leads approximately 3/8 inch for connection to terminals.
2.
Break wire run at wiring terminals to provide electrical supervision
(Figure 5). Do not loop wires under the terminals.
The polarity shown in the wiring diagrams is for the operation of the
signals. The polarity is reversed by the FACP during supervision.
w ire 1
Figure 5: Proper NAC Wire Termination
Connect the signaling device to the backbox using the lock washer
(provided in the hardware bag) under the head of each mounting screw.
(+)
(+)
(-)
(-)
In
O u t
F rom F A C P
or Sys te m N A C
C on trol D evic e
T o S yn c S trobe
s c m 4
Wiring the Device
Grounding