
FireLite SLC Wiring Manual —
P/N 51309:R3
7/29/2019
21
NFPA Class A SLC
SLC Circuits without Isolators
3.3 NFPA Class A SLC
NFPA Class A requirements can be met by using the diagram below.
•
T-tapping of the SLC wiring is NOT allowed for Class A configuration.
Control Panel
SLC
Two-wire Addressable Detector
Addressable Module
S
L
C-style6
.cdrwmf
SLC Return
SLC Out
B+ B– A– A+
Figure 3.2 Basic NFPA Class A SLC