Table 16 - Resistance Table Referenced To The RJ45 at the PIDU Plus
Resistances should fall within + or -10% of the stated values.
CAT-5
Length
(Meters)
0
10
20
30
40
50
60
70
80
90
100
150
200
250
300
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Resistance between
pins 1&2, 3&6 , 4&5 and
pins 7&8 (ohms)
0.8
2.7
4.6
6.5
8.3
10.2
12.1
14.0
15.8
17.7
19.6
29.0
38.4
47.7
57.1
9 Troubleshooting (Fault Finding)
Resistance between
pins 1&3 (ohms)
1.0
2.7
4.4
6.1
7.8
9.5
11.2
12.9
14.6
16.3
18.0
26.5
35.0
43.5
52.0
169
Resistance
between pins 4&7
(ohms)
1.6
3.3
5.0
6.7
8.4
10.1
11.8
13.5
15.2
16.9
18.6
27.1
35.6
44.1
52.6