GE EST iO64 Technical Reference Manual page 232

Appendix B: Worksheets
Table 5: Longest allowable circuit path with 11 to 15 SIGA-UMs or SIGA-MABs configured for 2-wire smoke detectors
Number of Number of
detectors modules (1
or 2 channel)
1 to 25 0
26 to 50 0
51 to 75 0
76 to 100 0
101 to 125 0
0 1 to 25
1 to 25 1 to 25
26 to 50 1 to 25
51 to 75 1 to 25
76 to 100 1 to 25
101 to 125 1 to 25
0 26 to 50
1 to 25 26 to 50
26 to 50 26 to 50
51 to 75 26 to 50
76 to 100 26 to 50
101 to 125 26 to 50
0 51 to 75
1 to 25 51 to 75
26 to 50 51 to 75
51 to 75 51 to 75
76 to 100 51 to 75
101 to 125 51 to 75
0 76 to 95
1 to 25 76 to 95
26 to 50 76 to 95
51 to 75 76 to 95
76 to 100 76 to 95
101 to 125 76 to 95
222
Maximum allowable wire distance using nontwisted, nonshielded and
twisted, nonshielded wire pairs (evenly distributed)
18 AWG
ft. m
1817 554
1070 326
321 98
0 0
0 0
1490 454
745 227
0 0
0 0
0 0
0 0
421 128
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
16 AWG
ft. m
2887 880
1699 518
510 156
0 0
0 0
2367 721
1184 361
0 0
0 0
0 0
0 0
668 204
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
EST iO64 and iO500 Technical Reference Manual
14 AWG
ft. m
4592 1400
2703 824
811 247
0 0
0 0
3764 1147
1883 574
0 0
0 0
0 0
0 0
1063 324
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0