24 Notifier SLC Wiring Manual — P/N 51253:U5 12/20/2017
Section 4: SLC Circuits without Isolators
4.1 Overview
This chapter concerns itself with the two styles of circuits that do not require isolation devices:
• NFPA 72 Style 4
• NFPA 72 Style 6
4.2 NFPA Style 4 SLC
NFPA Style 4 requirements can be met by using the diagram below.
• T-tapping of the SLC wiring is allowed for Style 4 configuration.
SLC-style4.wmf
Two-wire Addressable Detector
Addressable Module
T-tapped Circuits
Control Panel
SLC
B+ B–
Figure 4.1 Basic NFPA Style 4 SLC
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