I am trying to talk to a serial device. It is an old Zetron paging terminal. It wants me to talk to it at 300 baud, 7E1. In Windows using TerraTerm or SecureCRT I can talk to it with thoes settings. In Linux however, I ran stty -F /dev/ttyS0 300 cs7 and the command for even parity (pareve or something). I then echo "\r\n\r" > /dev/ttyS0, while im catting the port (cat /dev/ttyS0) and dont see anything back. In windows hitting <CR><CR> (enter) returns ID=. If I cross pins 2&3 and cat the file, I see a bunch of spaces, so I know its outputting. Any ideas why this works in Windows, but apparently the same settigns dont in Linux?? (COM1)
Also using Minicom I set it to 300 baud 7E1 and press enter a couple times and I dont get anything.