I have this switch connected to the PBX extension of a Merten blind control (580699). It is operated via a CMR500 Light Manager Pro from jbmedia via smartphone and the temperature control. The function is perfect, only I would an adjustable period of time (fixed value is 2 min) want the InterTechno. The operability of the system is in fact blocked for the full 2 min, my blinds need only 14 seconds to drive. At Merten, you can programming, the radio protocol used in Merten is not supported by the Light Manager, what would we be without the many beautiful standards ... So the combination used to work, so 5 stars.