1
\$\begingroup\$

I need to connect seventh port (SGMII) of KSZ9477S switch to AFBR5803AQZ optical transceiver (It's 100 Mbps). I wanted to use PHY with SGMII interface and fiber mode (VSC8658XHJ), but it's too expensive. I also found 88e1111 Marvell IC which should be able to convert SGMII to fiber interface, but it seems that it converts only to 1000BASE-FX while I need 100BASE-FX. Can somebody give me a clue how can I connect SGMII port of KSZ9477S switch IC to AFBR5803AQZ optical transceiver using cheaper solution?

\$\endgroup\$
3
  • \$\begingroup\$ If the IC converts 1000 Base FX, it should also convert 100 Base FX, look for register settings in datasheet. Please add datasheet link, I will try to look as well. \$\endgroup\$
    – AKR
    Nov 26, 2018 at 15:11
  • \$\begingroup\$ Thank you for the response!) Here is the link to the datasheet link \$\endgroup\$
    – Andy
    Nov 27, 2018 at 5:17
  • \$\begingroup\$ Please correct me if I am wrong, there is not anything called as 1000BASE-FX and even Marvell IC doesn't show anything for 100BASE-FX. Sorry for late response. \$\endgroup\$
    – AKR
    Dec 4, 2018 at 14:47

1 Answer 1

0
\$\begingroup\$

The 88E1111 Product Brief says right on the cover "Integrated 10/100/1000 Ultra Gigabit Ethernet Transceiver". What more do you need?

\$\endgroup\$
1
  • \$\begingroup\$ Thank you for reply. Yes, indeed it says so. But according to the datasheet it seems that this IC can only convert from SGMII to 1000BASE-LX and 10/100/1000 numbers refer to copper mode (10BASE-TX/100BASE-TX/1000BASE-TX). Here is the link to the datasheet link \$\endgroup\$
    – Andy
    Nov 27, 2018 at 5:46

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.