There is a bug in the pinout for the Olimex USB-Serial-Cable in the section BeagleBone_Black_Serial
Fragment of a discussion from User talk:Wmat
http://elinux.org/Beagleboard:BeagleBone_Black_Serial#Olimex_3_Pin_Cable_.28PL2303.29
Unfortunately, the page is not editable.
The page should be editable once you login. It's not protected. Or just tell me what to change and I'll change it.
It is protected, tried just now.
You're correct, any pages in the Beagleboard: namespace are indeed protected. I've gone ahead and corrected the error.
Still can't http://i.imgur.com/UxOn7j1.png