Buses similar to the Wire component, in that they can be used to join other components together in a circuit drawing. However, the bus should be primarily used as to represent a single electrical bus point (i.e. a node), to which many objects may be connected.
A Bus is a 'stretchable component', that is its length may be altered to fit the required use. The following diagram shows how a bus can be used:
NOTE: Unlike the Wire component, any wire that overlaps the Bus component is considered a connection!