5.2
General Information regarding Measurements
For any measurement, please observe the safety references indicated in section
2.0
Never connect the measurement instrument to an active network. This can
lead to network operation interference or to instrument damage.
The socket may be permantently damaged, if the user tries to connect another
plug connector to a RJ45 socket than a RJ45 plug (such as a RJ11 phone plug
connector).
Never operate portable transmitter units during cable testing. This can lead to
erroneous measurement results.
Never excessively bend the patch cable supplied and the cable to be tested.
5.3
Carrying out the Measurements
5.3.1
Wiring Test of Twisted Pairs / RJ45
This test checks the wire map for correct assignment
of the individual pairs and indicates the line connection, respectively their error.
The following checks are carried out:
Locating
•
open cables,
•
short-circuits in cable pairs,
•
crossed pairs,
•
exchanged wires,
•
loosened drillings,
•
split pairs.
Pair Assignment in compliance with EN 50173
28
