u/Puzzled-Pizza-4507

Hello!

I have a vending machine I'm trying to upgrade with a credit card reader that won't communicate with Nayax. In theory it should be compatible, but didnt come with the upgrade parts needed. It has a dex spot on the MDB but nothing currently attached. Whats the best option for adding dex? Is there a part I I can have a computer engineer friend add? Heres a picture of the spot. The machine is a Raddatz Product Development Corp Combo Machine (RCS20MDB & RCS15MDB)

Thanks!