So, i dont need Link pcb? The way to connect them is to plug the ethernet cable into the chihiro and the other side of the cable to the other chihiro, right?Those boards can only be found in European cabs. It has test, service and demag buttons, volume pots and a credit board for the coin mech.
If you need to link the motherboards, you just need to connect them together with an ethernet cable (crossover will definitely work, maybe a straight through one will too) and set the network options in the test menu on both sides.
Thanks for your help.