To test a serial port in MAC OSX first download the free CoolTerm application
Open Cool Term and click options.
In the port dropdown Brainboxes Serial ports appear with the name "cu.usbserial-randomcharacters"
Select the port to test with default settings.
Press 'Connect' on cool term.
Put a loop-back on the Connector of the device under test, for an RS232 serial port this can be performed by shorting pins 2 and 3. See this faq for more info
type into the CoolTerm console, the characters should appear on the screen
This FAQ Applies to the following Brainboxes Product Ranges: