FA-300-6L Installation and Operation Manual
15
Figure 12: Indicating circuit –Class A or Style Z wiring
Four Wire Smoke Detector Wiring
Figure 13: Four-wire smoke detector wiring
BELL
STROBE
HORN
+
-
STYLE Z
WIRING
STYLE Z
WIRING
INDICATING
CIRCUIT #1
INDICATING
CIRCUIT #2
INDICATING
CIRCUIT 1
INDICATING
CIRCUIT 2
OCAC-304 CLASS A
CONVERTER MODULE
FIRE ALARM MAIN BOARD
BL
K
R
ED
BL
K
R
ED
-S
IG
1
O
U
T
+
-S
IG
2
O
U
T
+
-S
IG
1
R
E
T
+
-S
IG
2
R
E
T
+
+
-
SI
G
1
SI
G
2
2
POWER
DETECTION
+
+
+
+
-
-
-
-
1
4
2
3
5
6
TO INITIATING
CIRCUIT
RESETTABLE 4-WIRE SMOKE
DETECTOR POWER SUPPLY
22VDC, 200mA
MAX. CURRENT - 300mA
MAX. RIPPLE VOL. 5mV
(POWER LIMITED)
4-WIRE DETECTION DEVICE
END OF LINE RELAY
LISTED S3403
MODEL A77-716B
MANUFACTURED BY
SYSTEM SENSOR
+
-
4-W
IR
E
SU
PP
L
Y
3.9K 1/2 WATT ELR
LEGEND
NOTES
ALL
POWER LIMITED
CIRCUITS
MUST USE TYPE FPL, FPLR,
OR FPLP POWER LIMITED
CABLE
FIRE ALARM MAIN BOARD