The Inline distance terminals have been designed for use within an Inline station.
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 located (e.g. switching 230 V AC within a 24 V DC segment). In this case, place a distance terminal before and after the relay terminal block. Doing so maintains the isolating distance between the individual areas.
The distance terminals interrupt the potential jumpers for the main voltage, segment voltage, ground, and functional earth ground. Lines are not connected to these terminals.