[nomel]

Does SFP+ not have a scrambler/descrambler to make this a non issue, like almost all other phy?

https://en.m.wikipedia.org/wiki/Scrambler

[jrockway]

This is done before the SFP+ module sees the signal, but the module makes the design assumption that it is being done. It is right for 10G ethernet, it is wrong (at a certain time scale) for SPDIF.

I also think that https://en.wikipedia.org/wiki/Line_code is the term you're looking for.

[nomel]

Ahh, I'm only familiar with the copper side of things. But, that explains why the search came up with nothing for SFP+!

> I also think that https://en.wikipedia.org/wiki/Line_code is the term you're looking for.

In 10G ethernet phy's, it's a multiplicative (self-synchronizing) scramblers [1] and does not use line code. From what I remember, it's statistically fine, and plays into LDPC correction easier.

[1] https://www.iol.unh.edu/sites/default/files/knowledgebase/10...