How are connection points represented in TPC schematics?

In TPC schematics, connection points are represented by a dot at the intersection of lines. This standard notation clearly indicates where two or more connections meet and are supposed to be electrically connected. The dot is a universal symbol in circuit design, facilitating easy identification of junctions in a circuit. It communicates to the reader that the lines crossing at this point are interconnected, which is critical for understanding the schematic layout and ensuring correct implementation of the circuit.

The other options represent different conventions that do not apply to TPC schematics. For example, crosses at intersections might imply a different type of relationship, such as a non-connection or a signal crossing without bridging. Similarly, circles surrounding intersections or arrows indicating direction represent other forms of symbology in circuit design that serve specific purposes but do not accurately depict connection points in TPC schematics.