Secutron MR-2312-DDR

30
Field wiring
Figure 17 Initiating circuit– Class A or Style D wiring
7.1.2 Indicating Circuit Wiring
The MR-2300 Series Fire Alarm supports Class B (Style Y) and Class A (Style Z) wiring for its
indicating circuits. Each circuit is supervised by a 3.9K End-of-Line resistor. Each indicating
circuit provides up to 1.7 A, 5 A maximum total if no auxiliaries are used.
Note: An Active End-of-Line resistor CANNOT be used with any indicating circuits.
Always use 3.9 k
Ω End of Line resistors for indicating circuits.
+
-
STYLE D
WIRING
STYLE D
WIRING
INITIATING
CIRCUIT #1
INITIATING
CIRCUIT #2
INITIATING
CIRCUIT - 1
ALARM
ZONE
INITIATING
CIRCUIT - 2
SUPERVISORY
ZONE
ION SMOKE
DETECTOR
PHOTO
SMOKE
DETECTOR
HEAT
DETECTOR
PULL STATION
SUPERVISORY
4 MORE INITIATING
CIRCUITS NOT SHOWN
ICAC-306 CLASS A
CONVERTER MODULE
FIRE ALARM MAIN BOARD
BLK RED
BLK RED
- DET1
OUT+
- DET2
OUT+
- DET1 RET+- DET2 RET+
+
-
DET 1DET 2
MR-2300-A
i