Cctalk Serial Interface

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This might reset your USB to serial chip if the output is stronger. This allows a low cost interface width 5V microcontrollers.

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The logic levels for the ccTalk line are 3.5 to 5V for mark state (idle ) and 0 to 1V for space state (active). Interfacing the Validator is very simple, with the choice of the following protocols:

 

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