Can't find them listed anywhere. But at least the serial ports will probably be one of two possible standards, which you can tell by which pin is connected to Ground. If the header is arranged:

12 4 6 8 10
21 3 5 7 9

Then either pin 5 or pin 9 should connect to ground. Have you got a multimeter and some pictures of the motherboard headers and the cables?

Thanks.

I don't have the cables here atm, but acording to the manual this is the port distribution where it's indicated the pin 1:

Here is a photo of the headers:

I have a multimeter . I would try to bring here the cables this weekend.

Based on the pinout of the 75232 serial drivers then I think the header pinout is header pin number -> 9 pin dsub pin number. So header pin 9 goes to dsub pin 9 (Serial Ring Indicator). If that's right then pin 5 (middle top given the way up the photo is) should be Ground. If you connect a cable to it then pin 5 on the dsub (end of the row with 5) should be Ground.

For the parallel port, I'd guess that one is laid out like a 25pin dsub (fairly common). So the 8 ground wires on dsub pins 18-25 will be on 24,22,20,18,16,14,12,10. Together they should get you most of the way to figuring out the connectors.

thanks a lot.

I will check the continuity of the cables with the multimeter as soon as i had time to find them.