Interface Sfera digital / Sfera 2-wire For connecting several Sfera 2-wire video and audio door intercom systems via the Sfera digital BUS (6/8 wires) with one or more common door stations. Features: - multiple speech paths are implemented - for systems > 100 residential units - connects several houses to one system 6 DIN module installation housing (profile rail 35mm) Dimensions: 107 x 91 x 37 mm
