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Data Transfer Unit User Manual
10. LED Indicators
You can also learn about the system status via LED indicators.
LED Mark
LED Color
Description
DTU power on or power off
Network communication
Microinverter communication
Fault State
LED States
LED
Indicator
Status
Description
All
Firmware upgrading
Starting up
DTU power on
DTU power off
DTU is communicating with Hoymiles S-Miles Cloud
Internet disconnected
Internet connected and server disconnected
Local app connected
DTU is connecting to microinverters
No MI ID (Please create power station on the web)
MI IDs Incomplete
Normal
DTU alarm occurred
Microinverter alarm occurred
Meter alarm occurred