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7.8 WIRING TABLES
Fig.16: WIRING TABLE FOR INITIATING CIRCUITS
WIRE GAUGE MAXIMUM WIRING RUN TO LAST DEVICE (ELR)
(AWG) ft m
22 2990 910
20 4760 1450
18 7560 2300
16 12000 3600
14 19000 5800
12 30400 9200
NOTE : MAXIMUM LOOP RESISTANCE SHOULD NOT EXCEED 100 OHMS
Fig.17: WIRING TABLE FOR Notification Circuits
TOTAL MAXIMUM WIRING RUN TO LAST DEVICE (ELR) MAX. LOOP
SIGNAL LOAD RESISTANCE
18AWG 16AWG 14AWG 12AWG
Amperes ft m ft m ft m ft m Ohms
0.06 2350 716 3750 1143 6000 1829 8500 2591 30
0.12 1180 360 1850 567 3000 915 4250 1296 15
0.30 470 143 750 229 1200 366 1900 579 6
0.60 235 71 375 114 600 183 850 259 3
0.90 156 47 250 76 400 122 570 174 2
1.20 118 36 185 56 300 91 425 129 1.5
1.50 94 29 150 46 240 73 343 105 1.2
1.70 78 24 125 38 200 61 285 87 1.0
RS-485 WIRING: See the Connection Diagram.
4-WIRE SMOKE WIRING: The maximum allowable current is 0.15 Amperes. The maximum allowed Voltage Drop
is 1 Volt. Refer to the Indicating Circuit Wiring Table above.
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