Advantech DLT-V73 Series User Manual page 58

Connectors
Problems with data transmission via LAN/Ethernet
If problems occur during data transmission over LAN/Ethernet (e.g. data is lost or not
detected), the cause of these problems may be a cable which is too long. Depending on
the cable layout and interference from the environment, it may be impossible to use the
cable length of 100 m given in the specification (IEEE 802.3 standard). The solution here
is the use of a shorter cable.
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