Successfully transfering files between 48SX and 50G

[Steve Simpkin]

(11-30-2018 11:11 PM)John Keith Wrote:  Actually the HP50's serial port is TTL level, not "proper" RS-232 so some sort of level shifting would be needed. Surely someone must have done this before(?)

Thank you for the clarification. I found the following information on RS232 conversion cables for the HP50G.
https://www.allenwan.com/hpcalcserialcable/
https://commerce.hpcalc.org/serialcable.php