[YimingDesigner]

I'm a Mechatronics student being familiar with electrical circuit, PLC and microcontroller. I want to build my own handwheel for my small project but still want some compatibility. Basically, I know the order of wires does not matter on the technical perspective. But what's the convention of connector?

I suppose most of existing ones use DB (D-Sub) Connectors. On the handwheel side, should I use female or male connector?
How should I wire my handwheel to the DB connector? I found this on the Internet. But I suppose the closest DB connector is DB25 which has 25 pins. How should I assign the pins?

[Al_The_Man]

If using Dsub, you should always use the socket for the power /input side.
The output from the handwheel would be the male side.
There is no real standard for pin consignment for particular pins on these , in my experience.

[CNCMAN172]

If using Dsub, you should always use the socket for the power /input side.
The output from the handwheel would be the male side.
There is no real standard for pin consignment for particular pins on these , in my experience.

I would go to cnc4pc.com and download their manual on their mpg it is pretty standard with many you find on eBay