Idnac Class B Wiring Tables - Simplex 4007-9101 Installation Manual

5.5 IDNAC Class B wiring tables

Use the following tables to calculate the wiring distance to farthest appliance. The maximum wiring distance is the shorter of the distance limits as
calculated by alarm current voltage drop or by reaching the communications distance limit.
Wiring Limit Based on Alarm Current
Alarm
Current
0.050
0.100
0.150
0.200
0.250
0.300
0.350
0.400
0.450
0.500
0.750
1.000
1.250
1.500
1.750
2.000
2.250
2.500
2.750
3.000
Wiring distance must not exceed 4000 ft
Fig 17: Class B wiring tables
NOTE:
Although the required wiring for IDNAC circuits is twisted pair (controlled impedance) wiring, some applications will wish to take
advantage of existing wiring that is not twisted pair. This is only allowed if both conductors of the IDNAC circuit reside in the same metal conduit,
and only under certain conditions. Check with your local sales office before using wiring that is not twisted pair.
Page 20
Distance to the Last Appliance
20 18 16 14
AWG AWG AWG AWG AWG
4000 ft 4000 ft 4000 ft 4000 ft 4000 ft
2644 ft 4000 ft 4000 ft 4000 ft 4000 ft
1763 ft 2802 ft 4000 ft 4000 ft 4000 ft
1322 ft 2102 ft 3342 4000 ft 4000 ft
1058 ft 1681 ft 2674 ft 4000 ft 4000 ft
881 ft 1401 ft 2228 ft 3542 ft 4000 ft
755 ft 1201 ft 1910 ft 3036 ft 4000 ft
661 ft 1051 ft 1671 ft 2657 ft 4000 ft
588 ft 934 ft 1485 ft 2362 ft 3756
529 ft 841 ft 1337 ft 2125 ft 3380
353 ft 560 ft 891 ft 1417 ft 2254 ft
264 ft 420 ft 668 ft 1063 ft 1690 ft
212 ft 336 ft 535 ft 850 ft 1352 ft
176 ft 280 ft 446 ft 708 ft 1127 ft
151 ft 240 ft 382 ft 607 ft 966 ft
132 ft 210 ft 334 ft 531 ft 845 ft
118 ft 187 ft 297 ft 472 ft 751 ft
106 ft 168 ft 267 ft 425 ft 676 ft
96 ft 153 ft 243 ft 386 ft 615 ft
88 ft 140 ft 223 ft 354 ft 563 ft
Ohms per 1000 ft
Gage Ohms/1000 ft
20 AWG 11.347
18 AWG 7.137
16 AWG 4.488
14 AWG 2.8230
12 AWG 1.7750
4007ES and 4007ES Hybrid Fire Alarm Systems Installation Manual
Wiring Limit Based on Communication
Line
Impedance Devices
12
(Ohms)
14.54 1 1252 ft
12.96 5 1142 ft
11.38 10 1003 ft
10.14 15
9.12 20
8.28 25
7.58 30
6.97 35
6.45 40
6.00 45
5.60 50
5.24 55
4.92 60
4.75 63
4.64 65
4.38 70
4.15 75
3.94 80
3.74 85
3.56 90
3.40 95
3.24 100
3.10 105
2.97 110
2.85 115
2.73 120
2.58 127
Wiring distance must not exceed 4000 ft
Distance to the Last Appliance
20 18 16 14
AWG AWG AWG AWG
2038 ft 3241 ft 4000 ft
1815 ft 2887 ft 4000 ft
1595 ft 2536 ft 4000 ft
893 ft 1420 ft 2258 ft 3590 ft
804 ft 1278 ft 2033 ft 3231ft
730 ft 1160 ft 1845 ft 2934 ft
668 ft 1061 ft 1688 ft 2683 ft
614 ft 977 ft 1553 ft 2469 ft
568 ft 904 ft 1437 ft 2285 ft
528 ft 840 ft 1336 ft 2124 ft
493 ft 784 ft 1247 ft 1982 ft
462 ft 734 ft 1168 ft 1856 ft
434 ft 690 ft 1097 ft 1744 ft
419 ft 665 ft 1058 ft 1682 ft
409 ft 650 ft 1034 ft 1643 ft
386 ft 614 ft 976 ft 1552 ft
366 ft 581 ft 924 ft 1469 ft
347 ft 551 ft 877 ft 1394 ft 2217 ft
330 ft 524 ft 833 ft 1325 ft
314 ft 499 ft 794 ft 1262 ft
299 ft 476 ft 757 ft 1203 ft
286 ft 454 ft 723 ft 1149 ft
273 ft 435 ft 691 ft 1099 ft
262 ft 416 ft 662 ft 1052 ft
251 ft 399 ft 634 ft 1009 ft
241 ft 383 ft 609 ft 968 ft
228 ft 362 ft 576 ft 915 ft
12
AWG
4000 ft
4000 ft
4000 ft
4000 ft
4000 ft
4000 ft
4000 ft
3928 ft
3634 ft
3378 ft
3152 ft
2952 ft
2774 ft
2675 ft
2613 ft
2468 ft
2337 ft
2107 ft
2006 ft
1913 ft
1827 ft
1748 ft
1673 ft
1604 ft
1539 ft
1456 ft
579-1102 Rev H