Appendix B: Worksheets
222
Vigilant VS1 and VS2 Technical Reference Manual
Table 3: Longest allowable circuit path with 1 to 5 GSA-UMs or GSA-MABs configured for 2-wire smoke detectors
Maximum allowable wire distance using nontwisted, nonshielded and
twisted, nonshielded wire pairs (evenly distributed)
18 AWG
16 AWG
14 AWG
Detector
addresses
Module
addresses
ft. m ft. m ft. m
1
to
25
0
5172 1577 8217 2505 13069 3984
26
to
50
0
5172 1577 8217 2505 13069 3984
51
to
75
0
5172 1577 8217 2505 13069 3984
76
to
100
0
5172 1577 8217 2505 13069 3984
101
to
125
0
4980 1518 7912 2411 12583 3835
0
1
to
25
5172 1577 8217 2505 13069 3984
1
to
25
1
to
25
4861 1482 7722 2354 12281 3743
26
to
50
1
to
25
4345 1324 6903 2104 10979 3346
51
to
75
1
to
25
3843 1171 6105 1861 9710 2959
76
to
100
1
to
25
3359 1024 5337 1627 8488 2587
101
to
125
1
to
25
2895 882 4599 1402 7315 2230
0
26
to
50
3550 1082 5640 1719 8971 2734
1
to
25
26
to
50
3145 958 4996 1523 7945 2422
26
to
50
26
to
50
2742 836 4356 1328 6928 2112
51
to
75
26
to
50
2348 716 3730 1137 5932 1808
76
to
100
26
to
50
1963 598 3119 951 4961 1512
101 to 125
26 to 50
1589
484
2525
770
4016
1224
0
51
to
75
2334 712 3709 1130 5898 1798
1
to
25
51
to
75
1986 605 3156 962 5019 1530
26
to
50
51
to
75
1643 501 2610 795 4151 1265
51
to
75
51
to
75
1305 398 2073 632 3297 1005
76 to 100
51 to 75
973
296
1545
471
2458
749
101 to 125
51 to 75
647
197
1027
313
1634
498
0
76
to
100
1426 435 2265 691 3603 1098
1
to
25
76
to
100
1114 339 1769 539 2814 858
26 to 50
76 to 100
805
245
1279
390
2034
620
51
to
75
76
to
100
500 152 795 242 1264 385
76
to
100
76
to
100
199 61 317 97 504 154
101
to
125
76
to
100
0 0 0 0 0 0
0
101 to 115
971
296
1543
470
2454
748
1 to 25
101 to 115
674
206
1071
327
1704
519
26
to
50
101
to
115
380 116 604 184 961 293
51 to 75
101 to 115
89
27
142
43
226
69
76
to
100
101
to
115
0 0 0 0 0 0
101 to 125
101 to 115
0
0
0
0
0
0
