An OVP transceiver provides protection against over-voltages at the bus terminals that can be far above and below the transceiver supply rails, Vcc and GND. The upper and lower limits of the over-voltage range are specified as I/O voltage levels in the absolute maximum ratings of the transceiver datasheet. The over-voltage protection allows for all types of waveforms to be present, including fast transients, AC voltages, such as sine or square waves, and DC potentials, as long as the peak voltage level remains within the over-voltage protected range.