BEHA LanTest 50 Instruction Manual page 29

The figure attached shows the pair assignment in compliance with EN 50173,
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Figure 5-02 Pair Assignment
Connect the one end of the cable under test with the RJ45 test connection
socket (6).
Connect the other end of the cable under test with the RJ45 test connec-
tion socket of the coding plug (9b).
The following figure showe the correct connection of both instruments
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