Not always 3dB. For CA-25G-N cable assemblies the minimum COM is relaxed to
2.2 dB.
On Mon, Apr 17, 2017 at 3:43 PM, SI Guy <silistguy@xxxxxxxxx> wrote:
Does anyone know why the limit for COM in 25G ethernet spec is 3dB? Does
this have anything to do with the shannon-hartley theorem? I would imagine
but after putting in the numbers, I don't see a directly 1:1 relationship.
My brain has had bad gas today.
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