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Digital Transmission (Line Coding # (Polar, Bipolar, Unipolar), PCM…
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Process of converting binary data, to a digital signal.
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1 bit follows another; need only 1 communication channel rather than n-channels to transmit data between 2 communicating devices.
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-polarity is assigned to '1' bit, white the '0' bits is represented by 0 voltage. (1- positive, 0-remain)
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( 0bit = 0, 1bit = positive/negative alternately)
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0 bit = positive, 1 bit = negative
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1 bit = postive to 0, 0 bit = negative to 0