Installation holder as a universal holder for installation and use of the loudspeaker unit Art. 4680C, Art. 4680CW, Art. 4681, Art. 4682HC, Art. 4682HCW with handicap function on existing door stations and mailbox systems. Illumination of the nameplates must be provided by the customer, regardless of the power supply of the intercom system. ATTENTION: Note the cutout for the loudspeaker unit!
