I got it working, well, what I have is a parallel interface GNT 3601
puncher rather than a serial one. Thanks to chris for the document.
Actually I'm still having a timing problem, some bytes gets missed while
others gets punched twice. I'll see how I could solve it (I'll probabely
be checking the ack line but i got to make an other cable). It's a
software problem. Then I think thats an advantage of the serial
interface over the parallel. Sure the parallel is faster at punching,
but I have time :-p I would had preffered not having to worry about
synchronization than to punsh faster.
I could send the parallel pinouts if someone needs them.
Thank you people, tsch?ss