32
Field wiring
7.1.3 Four Wire Smoke Detector Wiring
Figure 20 Four-wire smoke detector wiring
7.1.4 Dialer Wiring
If you have Fire Alarm Panel Models MR-2312-DDR or MR-2306-DDR there is a dialer on
board and terminals marked Line 1 and Line 2 must be wired as shown in Figure 21 below.
The dialer circuitry also allows for remote configuration using a PC.
Figure 21 Dialer wiring
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-WIRE
SUP PLY
3.9K 1/2 WATT ELR
LEGEND
NOTES
ALL P OWER LIMITED CIRCUITS
MUST USE TYPE FPL, FPLR,
OR FPLP POWER LIMITED
CABLE
FIRE ALARM MAIN BOARD
TIPTIP RI N GRING
premise telephone
IF permitted
TIPTIP RI N GRING
LINE-1
LINE-2
1
23
4
8
5
76
Public switch
Telephone company
wiring
TIP
RING
TIP
RING
RJ 31X
BROWN
GREY
GREEN
RED
COCO RESRES
Line 2 is Wired as shown for Line 1
FIRE ALARM MAIN BOARD