40 Johnson Controls, Inc. SLC Wiring Manual — P/N 51870:G 04/23/2009
Monitor Modules NFPA Style D IDC Using Zone Interface Modules
6.7 NFPA Style D IDC Using Zone Interface Modules
Connect the FlashScan SLC wiring to the M302MJ module terminals 1 (–) and 2 (+).
Each module takes one address on the SLC. Use the rotary switches on the module to set it to the
required SLC address.
Figure 6.11 shows typical wiring for a supervised and power-limited NFPA Style D (Class A) IDC
using the M302MJ zone interface modules.
Module installation notes:
1. The Initiating Device Circuit (IDC) is supervised and current-limited to 210 microamps
@ 24 VDC (nominal).
2. The IDC provides the following services (do not mix):
• Fire alarm service
• Automatic and manual waterflow alarm service with normally open contact devices
• Sprinkler supervisory service with normally open contact devices
• Security service
3. Refer to the Device Compatibility Document for compatible smoke detectors.
Figure 6.11 Typical Style D IDC Wiring with the M302MJ
Figure 6.12
SLC
Two-wire
smoke
detectors
3.9K ELR
(supplied with module)
IDC
M302MJ
SLC-idcD2tpH.wmf
24 VDC Resettable power.
90 mA External 24 volt supply required
(Non-resettable power may be used for
IFC-320/E/C, IFC2-640/E, IFC-640/E,
IFC2-3030, or IFC-3030 when operating in
FlashScan mode.)
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