I want to connect a vintage 70s era terminal with a Raspberry Pi. The terminal uses a DB-25 connector and features hardware flow control (RTS/CTS/DTR etc). What would be the recommended way to hook it with RPi to get the most "authentic" experience out of it?
It seems that either the GPIO pins + voltage level converter or a USB-serial cable could be used. But I don't know if one of these approaches is better than the other for driving a hardware terminal.
Additional information: The terminal manual mentions that the port voltage swings from -10V to 10V. Thus the need for a voltage level converter when used with GPIO.