I have seen plenty of tutorials to connect an RC522 module to a Raspberry Pi, but I have been given an HID iClass SE reader to integrate into our system which runs off a Raspberry Pi 3B. I have no idea which pins on Pi I should connect to. I have found some tutorials on the code I can use, but first I need to connect it correctly. The spec sheet attached is for the top end model and shows a dozen connections, but this model has only four wires (Red, Black, White, Green). Presuming that they would use the same colors for all models, here's what I have from the spec sheet.
|Wire Color |Terminal | Description|
| Red | P1-4 |+VDC (I believe this is 12V DC) |
| Black | P1-3 | Ground (RTN) |
| White | P2-4 | **Wiegand Data 1 / Clock|
| Green | P2-3 | **Wiegand Data 0 / Data |
So where do I connect the White and Green on the Pi?
As suggested below is a photo and the link to the device is: https://www.hidglobal.com/products/readers/iclass-se/r10