Computer Audio Asylum: It doesn't break any noise, and it could make it worse by Dave_K Music servers and other computer based digital audio technologies.

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Posted by Dave_K on March 1, 2021 at 15:58:15

In Reply to: RE: Optical Ethernet posted by CraigS720 on February 28, 2021 at 12:30:02:

Ethernet/optical transceivers are not isolation devices, filters, reclockers, or signal regenerators. They simply convert from voltage to light intensity and back again. That's it. So if the differential voltage at the input to the first transceiver contains noise, that noise is simply converted into light intensity by the first transceiver and back to voltage again by the other one. They preserve the noise just as well as the signal.

And they also need +5VDC power, usually from wall-wart SMPS, so they introduce two more possible noise sources that wouldn't be there if you just used straight Ethernet.

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