Simplex 4100ES Installation Manual page 197

Alarm Current Distance to the Last Appliance
20 AWG
0.400 661 ft
0.450 588 ft
0.500 529 ft
0.750 353 ft
1.000 264 ft
1.250 212 ft
1.500 176 ft
1.750 151 ft
2.000 132 ft
2.250 118 ft
2.500 106 ft
2.750 96 ft
3.000 88 ft
Wiring distance must not exceed 4000 ft
Line Impedance(Ohms) Devices
14.54 1
12.96 5
11.38 10
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
Gage
20 AWG
18 AWG
16 AWG
14 AWG
12 AWG
page 195
Table 38: UTP Wiring Limit Based on Alarm Current
18 AWG 16 AWG
1051 ft 1671 ft
934 ft 1485 ft
841 ft 1337 ft
560 ft 891 ft
420 ft 668 ft
336 ft 535 ft
280 ft 446 ft
240 ft 382 ft
210 ft 334 ft
187 ft 297 ft
168 ft 267 ft
153 ft 243 ft
140 ft 223 ft
Table 39: UTP Wiring Limit Based on Communication
Distance to the Last Appliance
20 AWG 18 AWG
1252 ft 2038 ft
1142 ft 1815 ft
1003 ft 1595 ft
893 ft 1420 ft
804 ft 1278 ft
730 ft 1160 ft
668 ft 1061 ft
614 ft 977 ft
568 ft 904 ft
528 ft 840 ft
493 ft 784 ft
462 ft 734 ft
434 ft 690 ft
419 ft 665 ft
409 ft 650 ft
386 ft 614 ft
366 ft 581 ft
347 ft 551 ft
330 ft 524 ft
314 ft 499 ft
299 ft 476 ft
286 ft 454 ft
273 ft 435 ft
262 ft 416 ft
251 ft 399 ft
241 ft 383 ft
228 ft 362 ft
Table 40: Ohms per 1000 ft
Ohms/1000 ft
11.347
7.137
4.488
2.8230
1.7750
4100ES Fire Alarm System Installation Guide
14 AWG
2657 ft
2362 ft
2125 ft
1417 ft
1063 ft
850 ft
708 ft
607 ft
531 ft
472 ft
425 ft
386 ft
354 ft
16 AWG 14 AWG
3241 ft 4000 ft
2887 ft 4000 ft
2536 ft 4000 ft
2258 ft 3590 ft
2033 ft 3231ft
1845 ft 2934 ft
1688 ft 2683 ft
1553 ft 2469 ft
1437 ft 2285 ft
1336 ft 2124 ft
1247 ft 1982 ft
1168 ft 1856 ft
1097 ft 1744 ft
1058 ft 1682 ft
1034 ft 1643 ft
976 ft 1552 ft
924 ft 1469 ft
877 ft 1394 ft
833 ft 1325 ft
794 ft 1262 ft
757 ft 1203 ft
723 ft 1149 ft
691 ft 1099 ft
662 ft 1052 ft
634 ft 1009 ft
609 ft 968 ft
576 ft 915 ft
574-848
12 AWG
4000 ft
3756
3380
2254 ft
1690 ft
1352 ft
1127 ft
966 ft
845 ft
751 ft
676 ft
615 ft
563 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
2217 ft
2107 ft
2006 ft
1913 ft
1827 ft
1748 ft
1673 ft
1604 ft
1539 ft
1456 ft
Rev. BQ