The LonWorks® Gateway PDB is a conversion gateway between the BMS System using the LonWorks protocol and an LG Air Conditioner using the LGAP protocol. The Gateway can convert the LonWorks protocol to the LGAP protocol. The LonWorks Gateway PDF can process a maximum of 64 indoor units. Controlling items include: ON/OFF Command, Operation Mode, Fan Speed, Temperature and Lock Settings. Monitoring items include: ON/OFF Status, Operation Mode Status, Fan Speed Status, Temperature Setting, Room Temperature, Lock Setting and Error Code Reports. FT-10 line is used to connect communication lines between BMS System and the LonWorks Gateway PDB.