13 – 200 HEIDENHAIN Service Manual iTNC 530
13.7 Cable Overview
Please note the maximum cable lengths:
13.7.1 Ethernet interface RJ45 connection
For the direct connection of laptop and control ("peer-to-peer") you require a crossed Ethernet
cable ("crossover cable").
If you establish the connection via your local network (intranet), normally use a non-crossed
Ethernet cable (patch cable).
Interface Maximum cable length
Ethernet Unshielded 100 m
Shielded 400 m
RS-232-C (V.24) Up to 20 m
RS-422 (V.11) Up to 1000 m
Do not use self-manufactured cables (shielding problems, contact problems, short circuits,
etc.).
Mark your cable as "crossed" or "non-crossed".
Mark your Ethernet cable as "crossed" in order to avoid confusion.
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