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LED Indicators

The iSMA-B-MG-IP LED indicators
  • The power LED (ON) is on (green) if the device is running properly.
  • The communication M-BUS LED is on (green) for 20 ms after sending each message by the M-Bus bus. If the device receives/sends a lot of messages, the LED can be lit continuously.
  • The communication COM1 LED is on (orange) for 20 ms after sending each message by the RS485 port. If the device receives/sends a lot of messages, the LED can be lit continuously.
  • The communication ETH1 LED is on (orange) for 20 ms after sending each message by the Ethernet. If the device receives/sends a lot of messages, the LED can be lit continuously
  • The ALM LED is ON (green) if an overload is detected on the M-Bus bus (current on the M-Bus bus exceeds 130 mA).
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