To get a USB to TTY connector working on Mac OS X you need some information in advance.
First of all you need to know the chip that is used. I used a little workaround to get this figured out. I started my Ubuntu virtual machine connected the cable and did a “lsusb”.
icinga@icinga-dist:~$ lsusb Bus 002 Device 002: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 002: ID 203a:fff9 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub icinga@icinga-dist:~$
With this information I googled the corresponding driver for MAC.
To get this converter working download the Mac OS X file and install: FTDIUSBSerialDriver_10_4_10_5_10_6.mpkgA
After a reboot the driver is activated. Now, if you connect your converter you will see additional devices in /dev:
ls -1 /dev/tty.* /dev/tty.Bluetooth-Modem /dev/tty.Bluetooth-PDA-Sync /dev/tty.usbserial-FTDFDSPJ
The tty.usbserial-FTDFDSPJ is now your converter.
To get connected to a Cisco Router e.g. you need a serial terminal tool. I prefer minicom.
Start minicom the first time as root with:
cd /opt/minicom/2.2/bin sudo ./minicom -s
Modify your serial port setup:
A - /dev/tty.usbserial-FTDFDSPJ E - 98008N1 Save setup as ... --> cisco
now start your minicom as user:
cd /opt/minicom/2.2/bin sudo ./minicom cisco