‑37‑
Signal pin assignment
Pin Signal Signal direction Description
1 TD+ Output Data transmission+
2 TD‑ Output Data transmission‑
3 RD+ Input Receive data (+)
4 ‑ ‑ Not used
5 ‑ ‑ Not used
6 RD‑ Input Receive data (‑)
7 ‑ ‑ Not used
08 ‑ ‑ Not used
Length requirement
The cable between devices cannot exceed 100 m when the EtherCAT bus is used,
exceeding of which may attenuate the signal and affect normal communication.
Technical requirements:
Short circuit, open circuit, misalignment, or poor contact does not occur during 100%
continuity test. Cables compliant with the following specifications are recommended.
Item Specification
Cable type Flexible crossover cable, S‑FTP, Cat5e
Standards
compliance
EIA/TIA568A, EN50173, ISO/IEC11801
EIA/TI Abulletin TSB
EIA/TIA SB40‑A&TSB36
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