JAJSFG1E May 2018 – May 2019 THVD1410 , THVD1450 , THVD1451 , THVD1452
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An RS-485 bus consists of multiple transceivers connecting in parallel to a bus cable. To eliminate line reflections, each cable end is terminated with a termination resistor, RT, whose value matches the characteristic impedance, Z0, of the cable. This method, known as parallel termination, generally allows for higher data rates over longer cable length.