Rockwell Automation 1788 NetLinx Media Checker Users Manual - Manual (Page 31)

Calculating Trunk, Drop, or Tap Lengths 31
1788-UM002A-US-P – April 2000
Table 12. Measured Tap Lengths for ControlNet
Cables
Number
of Taps Terminated Tap* Unterminated Tap
1 8 ft (2.5 m) 4 ft (1.5 m)
2 16 ft (5 m) 9 ft (2.5 m)
3 23 ft (7 m) 13 ft (4 m)
4 31 ft (9.5 m) 17 ft (5 m)
5 39 ft (12 m) 22 ft (6.5 m)
6 47 ft (14.5 m) 26 ft (8 m)
7 55 ft (16.5 m) 30 ft (9 m)
8 62 ft (19 m) 34 ft (10.5 m)
9 70 ft (21.5 m) 39 ft (12 m)
10 78 ft (24 m) 43 ft (13 m)
11 86 ft (26 m) 47 ft (14.5 m)
12 94 ft (28.5 m) 52 ft (15.5 m)
13 101 ft (31 m) 56 ft (17 m)
14 109 ft (33.5 m) 60 ft (18.5 m)
15 117 ft (35.5 m) 65 ft (19.5 m)
16 125 ft (38 m) 69 ft (21 m)
17 133 ft (40.5 m) 73 ft (22.5 m)
Number
of Taps Terminated Tap* Unterminated Tap
18 140 ft (43 m) 77 ft (23.5 m)
19 148 ft (45 m) 82 ft (25 m)
20 156 ft (47.5 m) 86 ft (26 m)
21 164 ft (50 m) 90 ft (27.5 m)
22 172 ft (52.5 m) 95 ft (29 m)
23 179 ft (54.5 m) 99 ft (30 m)
24 187 ft (57 m) 103 ft (31.5 m)
25 195 ft (59.5 m) 108 ft (33 m)
26 203 ft (62 m) 112 ft (34 m)
27 211 ft (64 m) 116 ft (35.5 m)
28 218 ft (66.5 m) 120 ft (36.5 m)
29 226 ft (69 m) 125 ft (38 m)
30 234 ft (71.5 m) 129 ft (39.5 m)
31 242 ft (73.5 m) 133 ft (40.5 m)
32 250 ft (76 m) 138 ft (42 m)
33 257 ft (78.5 m) 142 ft (43 m)
34 265 ft (81 m) 146 ft (44.5 m)
35 273 ft (83 m) 151 ft (46 m)
* Terminated with 1786/1797-TCAP