> Unfortunately, the emulated VT102 is not connected through a real serial port, it’s connected through a PTY which (at least compared to what the VT102 expects

> Unfortunately, the emulated VT102 is not connected through a real serial port, it’s connected through a PTY which (at least compared to what the VT102 expects) is basically infinitely fast. I’ve thought before that you could have a couple of USB-to-RS232 adapters and connect them together? What Linux needs is a real virtual serial driver. PTY isn’t it because it doesn’t fully emulate lower level aspects of RS-232 - it behaves differently from “connecting two RS-232 ports together”