Within an Inline station, a relay terminal can be used to switch voltages that are not available in the segment in which the terminal is used (e.g., switching 230 V AC in a 24 V DC segment). In this case, place a distance terminal before and after the relay terminal. This maintains the isolating distance between the individual areas.

The distance terminals interrupt the potential jumpers for the main and segment voltage, ground, and functional earth ground. No cables are connected to these terminals.