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Supplying power to a BTT Octopus Pro V1.1


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I want to operate this motherboard using a Meanwell 24 VDC power supply and a 48 VDC poweer supply. As the power supply of the motherboaed is delived by 2 independent  power supplies, is it necessary to connect both Dc Grounds to ensure same level for the ground or is the 48 VDC supply isolated from the logic an so independent power supply units can be used?

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