Here's a step-by-step set of instructions on how to console onto your cisco router or switch from your mac using minicom.
x A - Serial Device : /dev/cu.USA19QI191P1.1
x B - Lockfile Location : /sw/var/run
x C - Callin Program :
x D - Callout Program :
x E - Bps/Par/Bits : 9600 8N1
x F - Hardware Flow Control : No
x G - Software Flow Control : No
x
x Change which setting?
Verify your "Serial Device" by looking through /dev on your computer for something that looks approximately like above. You might do ls /dev/cu* to find it fast. Don't choose /dev/cu.modem, and note the "E" settings -- this is what Cisco routers require, and note that there's no flow control of any kind. Save setup as dfl; this is the default config which minicom uses on launch.You will need the following cabling:
Mac OS X Hints
http://hints.macworld.com/article.php?story=20040521145713551