Wire crossover symbols for circuit diagrams, including CAD and non-CAD styles. The original, older styles are contrasted with the newer, recommended styles that leave no room for confusion regarding whether two wires are connected or not connected even if a connecting "dot" is too small to see or accidentally disappears (such as after several passes through a copier). Circuit diagram ;Other information: These diagrams are based on the Wikipedia article "Circuit Diagram" and recommendations from several online sources, including electronicsclub.info/circuitsymbols.htm and www.circuitstoday.com/electronic-circuit-symbols