unity said:

I really can not help, but did you read all of this?:

http://lowendmac.com/2015/irtalk-irda-and-the-mac/

Click to expand...

thank you for the link! but stills the question, how can i transfer files between powerbook and other computers? i have an iMac g3, a powerbook 1400 an iMac g4 and an iMac g5, i think the only possibility of transferring is from powerbook 1400cs and or iMac g3. i tried null modem cable, using zterm, but idk how to configure. any idea? thank you