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The RS485 is printed between D1 & D0 for EM6400 model having communication compatibility.
In item code description RS is also mentioned for the RS485 activated items.
Please refer the attached document to check the communication enabled feature with EM6400 energy meter.
In item code description RS is also mentioned for the RS485 activated items.
Please refer the attached document to check the communication enabled feature with EM6400 energy meter.