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LT Series LoRa IO controller User Manual        12 / 42 
 
Input these keys in the LoRaWAN Server portal. Below is TTN screen shot: 
Add APP EUI in the application.   
 
Add APP KEY and DEV EUI 
 
Step 2: Power on LT and it will auto join to the TTN network. After join success, it will start to 
upload message to TTN and user can see in the panel.