Installation: 4+N (1 wire per dwelling). The doorman kits for buildings include all the necessary equipment for a complete installation and immediate operation. Includes: 4848.- CITYLINE 4+N 4AP104 plate and embedding box (Embedding box included ref. 8949). S4 entrance panel: 130 (H) x199 (V) mm. Emp box S4: 115 (H) x185 (V) x45 (P) mm. 3393.- LOFT BASIC 4+N telephone (4 units). 4802.- 12VAC/1A power supply. DIN4.