The relay can also be installed as an autonomous device responding to the activation of unidirectional wireless detectors of the JA-15x series. In this case, the relay triggers according to the mode selected for the particular detector (5 selectable modes: extended copy, impulse, change status, switch off and block). It provides a switching relay with galvanic safety separation for switching 230V/16A power loads. In the system it occupies one position.