a control unit connected to the at least one electrical connector, the control unit configured to determine a value of at least one digital signal of the at least one electrical connector, and {HEAD ~ the control unit} configured to serially communicate data and configured to parallelly communicate {TAIL ~ data} through the single electrical interface depending on the determined value of the at least one signal 
a control unit connected to the at least one electrical connector , the control unit configured to determine a value of at least one digital signal of the at least one electrical connector , and { HEAD ~ the control unit } configured to serially communicate data and configured to parallelly communicate { TAIL ~ data } through the single electrical interface depending on the determined value of the at least one signal
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