20
FnIO MODBUS Adapter NA-9171, NA-9173
FnIO S-Series
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5.2.3.
Terminator Resistor
A reflection in a transmission line is the result of an impedance discontinuity that a traveling
wave sees as it propagates down the line. To minimize the reflections from the end of the
RS485-cable it is required to place a Line Termination near each of the 2 Ends of the Bus.
