Hello Everyone I'm a New Member from South Louisiana

[Teepaco]

Hello Teepaco and welcome to the forum!

The ethernet boards are "connected" to Mach3 through a plugin. And the programmer of that board/plugin had chosen what mach3 pin and port corresponds to each input/output on that board. Whatever numbers they wanted, there are no rules. You need the documentation from your ethernet board manufacturer regarding ports and pins.

Thanks paulus.v for the responds. That is what I needed to know. Will give them a call tomorrow.

Thanks again