PL-2303 Mac OS X Driver v1.6.1 Installation Guide
Document Rev C
PL2303 Mac OS X Driver v1.6.1 Installation Guide 10182017.doc
5. You can then proceed to check if the USB serial port device is setup properly. You can run the
Terminal program under Applications-Utilities folder and type the following commands:
cd /dev
ls tty.usbserial*
You should see the “t t y .u s b s er i al ” device which means the USB serial device is already
setup properly. If you try to plug another PL-2303 device, you should also see several
“tty.usbserialx” listed where “x” is the assigned device number similar to Windows COM port
assignment.
6. NOTE: Mac OS may also pop-up a new network interface when it detects a new USB-Serial
Controller device. See next section for more explanation.
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October 18, 2017
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