DEUTSCHMANN AUTOMATION UNIGATE IC-EtherNet/IP 2Port Instruction Manual page 20

Hardware design
When connecting the UG-IC and the RJ45-connector it is important to
make sure the signal lines RD1-/RD1+ resp. TD1-/TD1+ also RD2-/RD2+
resp. TD2-/TD2+ run as short a possible, parallel and equal in length.
Because this is for analog signals, it is also advisable not to place digital
lines in close proximity.

The 74HCT595 used in this example has an undefined on-position, but
therefor can set the outputs to the tri-state condition via the OutEnable-
Pin 13. If it is more important to have a defined on-position in an applica-
tion, and the OutEnable-pin is not necessary, the 74HCT594 can be used
here.
20 Instruction manual UNIGATE
Deutschmann Automation GmbH & Co. KG
®
IC - EtherNet/IP 2Port V. 1.8 8.2.16