Mounting adapter, 3-way, for universal modules, for parapet duct/underfloor, for Rutenbeck central pieces/cover plates, - for universal modules or keystone modules (R-Data / R-Media / R-Fibre), - angled module outlet (30°), - support adapter made of die-cast zinc, - defined earth connection possible using standard flat plug connectors, - metric screws for central pieces, - suitable for Rutenbeck 3-way central piece