Atomiswave Button 5 with IO board in NNC

[Moonwalker]

Hi everybody,

I finally got me a Namco IO board to connect Jamma games to my New Net City.
That works so far, but I cant get Button 5 from my AW mobo to work.

The Atomiswave gets Button 5 through Jamma and I have 6 buttons wired in the NNC panel. As far as I understand (still a noob and te NNC is new) the NNC has a built in kick harness which of course wont recognize button 5 from Jamma. Dunno why it supports button 4 though.

Could anybody help me out and tell me how to get the button working?

Thanks!