20
Wiring Tables
Table 1: 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. Wire size less than 18AWG is not recommended for initiating or
noti
fi
cation circuits.
Table 2: Wiring Table for NAC Circuits
Main board and ZA-42 NAC circuits are rated for 1.7 amps each.
Total
Signal
Load
Maximum Wiring Run to Last Device (ELR)
Max Loop
Resistance
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
150
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
1.7
78
24
125
38
200
61
285
87
1.0
Note:
Maximum voltage drop should not exceed 1.8 volts.
RS-485 Wiring:
See the wiring information for the remote annunciator being used.
4-Wire Smoke Wiring:
The maximum allowable current is 0.1 amperes. The maximum allowed voltage drop is 1 volt. Refer to
Table 2: Wiring for NAC Circuits
above.
