Allen-Bradley MediaChecker 1788-MCHKR Manual page 31

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