When using scancodes it's best to use hardware flow control since normal software flow control conflicts with some of the codes (??). If you do use software flow control, you must use the XPC type of flow control. It uses 0x65 and 0x67 for on and off characters. It must be set this way both in the terminal and by stty for the PC.
Alternate Characters
Some keys may have alternative letters on them. When keys is set to "Typewriter" they send what they would normally send on a typewriter. When keys is set to something else the alternative characters are sent.
