Fig. 35 Zk1090-3131-0Xxx - Beckhoff EK15 Series Documentation

Mounting and wiring
EtherCAT cable
Fig. 35: ZK1090-3131-0xxx
For connecting EtherCAT devices only shielded Ethernet cables that meet the requirements of at least
category 5 (CAT5) according to EN 50173 or ISO/IEC 11801 should be used.
Recommendations about cabling
You may get detailed recommendations about cabling EtherCAT from the documentation "Recom-
mendations for the design of the infrastructure for EtherCAT/Ethernet", that is available for down-
load at www.Beckhoff.com.
EtherCAT uses 4 wires for signal transfer.
Due to automatic cable detection (auto-crossing) symmetric (1:1) or cross-over cables can be used between
EtherCAT devices from Beckhoff.
M8 Connector pin assignment
Signal
Tx+
Tx-
Rx+
Rx-
Shield
44
Description
Transmit Data+
Transmit Data-
Receive Data+
Receive Data-
Shielding
Version: 3.4
Pin (M8)
1
4
2
3
Housing
EK1122, EK15xx