1000BaseX PHY


Does anyone know of multi-port PHYs that convert SGMII to IEEE802.3z 4-pin SERDES? The Marvell Alaska PHY 88E1111 is an example of a single port PHY that can convert SGMII to 1000baseT, but once you put it int 1000baseX mode it loses the SGMII interface. What are the alternatives? I'm trying to run

16 SGMII ports to a SERDES based backplane, so a quad or octal PHY that can do this would be nice. Do they exist?

thanks, A.

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