LANcat
User Manual
Page A-6
EIA/TIA TSB-67 - Test Limits
When testing to Category 3, Category 4, or Category 5 UTP limits,
the cable category as well as the Cable Test Configuration is
chosen from the Cable Test Standards menu. To test the Channel,
including user patch and equipment cords, use the Modular Jack
Performance Module. The Basic Link can be tested to Level I
accuracy with the Modular Jack Performance Module or it can be
tested to Level II accuracy with the Modular Plug Performance
Module. (Level II is higher in performance than Level I. It is not
possible to attain Level II accuracy using the Modular Jack
Performance Module).
Table 1. Attenuation
Frequency
MHz
Category 3 (dB)
Category 4 (dB)
Category 5 (dB)
Channel
Link
Channel
Link
Channel
Link
1.0
4.2
3.2
2.6
2.2
2.5
2.1
4.0
7.3
6.1
4.8
4.3
4.5
4.0
8.0
10.2
8.8
6.7
6.0
6.3
5.7
10.0
11.5
10.0
7.5
6.8
7.0
6.3
16.0
14.9
13.2
9.9
8.8
9.2
8.2
20.0
11.0
9.9
10.3
9.2
25.0
11.4
10.3
31.25
12.8
11.5
62.5
18.5
16.7
100.0
24.0
21.6
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