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Thanks for your interest in the Intel® Edison™ Platform.
Unfortunately, I don't have access to a NX4827T043, so I can't replicate your issue. Looking at the details of your connection you seem to be doing it right.
I would recommend to try the mraa sample codes in order to establish a serial connection: mraa/examples at master · intel-iot-devkit/mraa · GitHub .
I will be waiting for your results, have a nice day!