I typically have used iTerm and the screen command for USB-Serial console access. But CTRL-Break is a nightmare. SecureCRT is a great app, but they are up to $99 w/only 1-year of upgrades.
CoolTerm is a fantastic little free Windows and OSX Console program. With a little tweaking it is perfect for serial console into routers/switches.
Once loaded, make the following changes in Options:
- Select your USB-Serial adapter on the Port list. Re-Scan serial ports if you didn’t plug it in before launching.
- On the Terminal menu option select “CR” for Key Emulation, and Check the “Handle Backspace Character.”
Good to go. Control-Break is just Command-B on the Mac. Can’t beat that.