Notifier SLC Wiring Manual —
P/N 51253:U5 12/20/2017
55
Power Connections: Powered by the SLC
Intelligent Detectors, Intelligent Detector Bases, and Wireless Gateway
10.8 Power Connections: Powered by the SLC
The FWSG provides isolation of short circuits on the SLC in Class A (Style 6) installations. SLC connections are power-limited by the
panel. An interruption in the SLC that causes a loss of power at the FWSG for more than 100ms may result in a trouble condition and
loss of fire protection provided by the wireless devices for approximately 15 minutes. Use of an ex24V power source (not SLC
power) is recommended for installations that require fire protection in the presence of short circuits, including Class A applications and
applications that use isolator modules. Figure 10.11 shows typical wiring of a Wireless Network Gateway connected to an SLC when
power is supplied by the SLC loop.
A7 SLC OUT+/In+
A6 SLC IN+/OUT+
A5 SLC- (Common)
A4 SLC Power Select 2
A3 Power +24VDC
A2 Power Ground
A1 SLC Power- Select 1
Figure 10.10 FWSG Mounting Plate - Terminal Layout
2.
4
.w
m
f
+
+
-
-
SLC in from FACP/device
SLC out to next device (Class B)
or SLC back to FACP (Class A)
Jumpers
2.
5.
w
m
f
Figure 10.11 FWSG Wiring Diagram, Powered by SLC Loop
A7
A6
A5