This is a simple circuit showing different ways to terminate transmission lines. The characteristic impedance of these lines is 75 ohms. The top line is properly terminated, with 75-ohm resistors at each end. As a result, the pulse travels across and is absorbed at the right end. This is the most efficient way to terminate the line, since it minimizes reflections that waste energy. The second line is terminated with a resistor that is too large, causing the wave to reflect and be absorbed at the other end (which is properly terminated). The third line is terminated with a resistor that is too small, causing the wave to reflect negatively. The fourth line is terminated incorrectly at both ends, causing the wave to reflect back and forth for a while.
This page is a utility for simulating прекращение линии передачи online with specified initial values.









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