USPA-AC-BAC-128 is a BACnet IP or MSTP device capable of monitoring and controlling all generation of ECOi, ECOi EX and PACi units. UP to 128 indoor units and 10 refrigerant circuits can be integrated (up to 30 PACi systems). Auto-Discover features detects connected Panasonic equipment for easy setup and integration.  Setup and control via Ethernet port and access to GUI.