Connected modem to ATARI XL

I connected my new WiModem232 sucessfully to my Atari 8-bit using an ATARI 850 interface.

There was a little trap. The four serial ports of the ATARI 850 interface look like normal RS232 ports (D Sub, 9pole, female), but the pinout is not the pinout known from pc. Also, the four ports are not identical. Port 1..3 can be used for RS232, port 4 is a current-loop for TELETYPE-machines. Port 2 and 3 doesn´t support all RS232-Signals. I used port 1 for the WiModem.

Owed to the 850s unusual pinout, you can´t use a standard 9pole-to-25pole-dongle to connect WiModem. I build a selfmade wired like this:


Thanks for the info!

Users browsing this thread: 1 Guest(s)