QuickTerm

QuickTerm is a basic ASCII terminal emulator. It can use any attached serial port, whether built-in or installed using an adapter such as a Keyspan USB-to-serial adapter.

It allows full setting of serial port parameters, with or without handshaking. The name QuickTerm alludes to the fact that is developed it quickly, forsaking features don't need to get a decent serial terminal emulator up and running.