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The M302 Monitor Module
Style B Initiating Device Circuit (Utilizing M302 Monitor Module)
The NFPA Style B IDC (Initiating Device Circuit) is supervised and power-limited.
Style B Circuit using M302
FIGURE 2-21:
Resettable 24 VDC
4-wire smoke
detector power
(300 mA max.)
+
-
+
-
T
B
1
2
3
4
4
24V (+) TB4-5
24V (-) TB4-6
To Next Device on Loop
-
+
+
-
MS-9200
5
6
Document #50428
UL listed Compatible
Smoke Detector
UL listed Compatible
Smoke Detector
UL listed Compatible
Smoke Detector
-
-
+
+
+
-
-
3
CAUTION! Do not loop wiring
+
4
under any terminals. Break wire
run to maintain supervision.
M302
T
B
6
Rev. C1
2/15/99
P/N 50428:C1
End-of-Line Resistor
3.9K ohm (included)
-
+
-
+
-
+
-
+
-
+
-
+
Loop Out
Shield
A
B B+ A+ B- A-
1
2
3
4
5
6
SLC (+) TB6-3
SLC (-) TB6-5
39
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