Page 21 of 35
7.8 WIRING TABLES
Fig.14:
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 INITIATING LOOP RESISTANCE SHALL NOT EXCEED 100 OHMS
Fig.15:
WIRING TABLE FOR INDICATING (NOTIFICATION APPLIANCE) CIRCUITS
TOTAL
SIGNAL LOAD
MAXIMUM WIRING RUN TO LAST DEVICE (ELR)
MAX. LOOP
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.
AUXILIARY POWER FOR
The maximum allowable current is 0.15 Amperes. The maximum allowed
FOUR WIRE TYPE DETECTORS
Voltage Drop is 1 Volt. Refer to the Indicating Circuit Wiring Table above
for wire run information. Be certain to verify the voltage at the last powered
initiating device is within its’ Listed operating voltage range. Use only
devices rated for operation on a 24 volt DC power source.
Technical Manuals Online! - http://www.tech-man.com
firealarmresources.com