What type of connection is created by the relationship between two 3-way switches and a 4-way switch in a lighting circuit?

In a lighting circuit that incorporates two 3-way switches and a 4-way switch, the arrangement creates what is known as a traveling connection. This type of connection allows for the control of a single light fixture from multiple locations.

The two 3-way switches are positioned at either end of the circuit and are connected to the 4-way switch, which acts as an intermediary. The function of the 4-way switch is to allow for additional control points, enabling the user to toggle the lighting on and off from any of the switch locations.

When the configuration includes the 4-way switch, it effectively creates pathways for electricity to travel, allowing the circuit to complete regardless of the position of the switches. This is what makes it unique compared to simple series or parallel connections; instead, the arrangement enables a versatile means of controlling the circuit from multiple points, embodying the essence of a traveling connection.