Building automation HVAC industrial IoT gateway ensure that OT device data is propagated in the cloud for production monitoring. BLIIoT BA115 building automation HVAC industrial IoT gateway supports DL/T645, IEC104, BACnet/IP, BACnet MS/TP, Siemens, Mitsubishi, Omron, Delta PLC protocols, Modbus RTU, Modbus TCP, Various air conditioning protocols to BACnet/IP, OPC UA, Modbus RTU, Modbus TCP, MQTT industrial protocols.

| Model | WAN | LAN | COM(RS485/RS232) | WiFi | 4G | GPS |
| BA115 | 1 | 1 | 2 | x | x | x |
| BA115L | 1 | 1 | 2 | x | / | x |
| BA115LG | 1 | 1 | 2 | x | / | / |
| BA115W | 1 | 1 | 2 | / | x | x |
| BA115P | 1 | 1 | 6 | x | x | x |
| BA115PL | 1 | 1 | 6 | x | / | x |
| BA115PLG | 1 | 1 | 6 | x | / | / |
| BA115PW | 1 | 1 | 6 | / | x | x |