When data and supply lines are sharing the same distribution network, the number of causes for over-voltage occurrences increases. Often times, a DC supply shares the same connector or screw terminal block with the data lines of an adjacent bus node circuit. As a result, miss-wiring faults can occur that connect one or more supply conductors with the transceiver bus terminals. Another failure cause is the layout of the conduit, where sharp cable bends often violate the minimum cable radius specified for data and supply cables. Over time, the increased mechanical pressure on the cable will cause a break in the insulation, thus allowing potential for shorts between power and data lines. A similar situation holds true for machinery and equipment placed against a conduit—thus crunching the cable. The duration of these over-voltage events can last for minutes or days until their causes are eliminated. Much shorter over-voltage events, such as over-voltage transients, can occur due to load switching activity in the power distribution system or as the result of lightning strikes, which induce high surge currents and voltages into the data lines.