The 1+n intercom system was developed to convert a classic doorbell system into a complete intercom system without the need to lay additional cables in the riser. The confidentiality of conversations between the individual residential units is maintained.Product features:Ringer generator Floor call Installation in electrical distributors an additional wire required (2+n) Technical data:Compatible with system 1+nfor DIN rail mounting Width: 5 sub-units (90mm) Installation instructions:Note:
