a simple terminal

Has anyone ever created a simple terminal program using Microsoft's .NET Rs232 class? I have a hard time making sense of the class events and how to put them to work. Like, making a call to a remote server, waiting for data, handling timeouts, and how to know when the CTS or DTR modes change. I don't know how I would go about binding a delegate sub or function to the events of the class instance. They say that the events are raised by another thread, but where? Thanks for helping.