Installation: 4+N (1 wire per dwelling). The door entry kits for buildings include all the necessary equipment for a complete installation and immediate operation: entrance panel and flush mounting box, DIN 12Vac/1.5A power supply (ref. 4800) and 1 LOFT telephone. Includes: 4845.- CITYLINE 4+N 1/L plate and embedding box. (Embedding box included ref. 8948). S1 entrance panel: 130 (H) x128 (V) mm. Flush mounting box 115 (H) x114 (V) x45 (P) mm. 3393.- LOFT BASIC 4+N telephone. 4802.- 12VAC/1A-DIN4 power supply.