SC-BGWNA256-A/B, SC-BGWNA-A/B are interface devices that convert MHI's Superlink-II communication data to BACnet code. In case of SC-BGWNA256-A/B, up to 256 cells (some cells can have two or more indoor units and total number of indoor units can be up to 256 units) are controlled centrally from a BMS.
