Secutron MR-2300T

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7.1.2 Initiating Circuit Wiring Class A
Figure 15 Initiating circuit– Class A wiring
7.1.3 Indicating Circuit Wiring
The MR-2300 LED Series Fire Alarm supports Class B and Class A 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 kȍ end of Line resistors for indicating circuits.
+
-
CLASS A
WIRING
CLASS A
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
CLASS A CONVERTER MODULE
FIRE ALARM MAIN BOARD
BLK RED
BLK RED
- DET1
OUT+
- DET2
OUT+
- DET1 RET+- D ET 2 R E T +
+
-
DET 1DET 2
i