IntesisBox® can talk to up to 16 Outdoor Units interfaces using Samsung’s EIA485 protocol (R1/R2 connector) and offers the signals of all indoor units connected each of them through its KNX EIB interface, allowing up to 4 indoor units (SM-ACN-KNX-4), 8 indoor units (SM-ACN-KNX-8), 16 indoor units (SM-ACN-KNX-16) or 64 indoor units (SMAC-KNX-64) to be integrated into KNX.