How are junctions indicated in a TPC schematic?

In a TPC schematic, junctions are indicated by dots or small circles at line intersections. This standard representation helps to visually communicate where two or more wires connect or intersect in the diagram. The use of dots ensures clarity, making it easy for anyone reading the schematic to distinguish between actual connections and merely crossing lines that are not connected.

Options that suggest squares, bold lines, or labels do not meet the established conventions commonly used in schematics. While squares or bold lines may imply some sort of graphical emphasis, they do not convey the specific meaning of a junction, which focuses solely on connection points indicated by dots or small circles. Similarly, while labels can provide additional information, they are not utilized primarily for indicating junctions within the schematic itself. Thus, using dots is the most accurate and widely accepted method for depicting junctions in TPC schematics.