Mircom FA-103

Wiring
8
Figure 7: Detection and signal wiring
Note: Whether mixing different models of compatible smoke detectors or using the same model on the
same initiating circuit, the total standby current of all detectors must not exceed 3mA.
Legend
Pull Station
Smoke
Detector
Heat
Detector
Bell
F
F
S
R
Alarm threshold current is 15.5 mA.
Maximum loop resistance is 100 ohms.
ELR
3.9K
1/2W
F
S
R
Detection zone 1
F
F
ELR
3.9K
1/2W
Signal (NAC) zone 1
Detection zone 2
+
-
+
-
24VDC Regulated
50mA max. alarm
24VDC Regulated
50mA max. alarm
24VDC Regulated
50mA max. alarm
24VDC Regulated
50mA max. alarm
24VDC Regulated
50mA max. alarm
24VDC Regulated
50mA max. alarm
24V RMS FWR
1.25A max.
F
S
R
ELR
3.9K
1/2W
+
-
+
-
+
-
+
-
Detection zone 3
F
S
R
ELR
3.9K
1/2W
Detection zone 4
F
S
R
ELR
3.9K
1/2W
Detection zone 5
F
S
R
+
-
ELR
3.9K
1/2W
Detection zone 6
F
S
R
ELR
3.9K
1/2W
ELR
3.9K
1/2W
Signal (NAC) zone 2
24V RMS FWR
1.25A max.
+
-
F
F
1
1
2
2
3
4
5
6
0Ω shorts on Input and Output circuits will cause a trouble.
Impedances of greater than 1MΩ Ohm on Input and Output
circuits will cause a trouble.
Detection Zones 4 to 6 are not available on the FA-103 FACP