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Re: [802.3_B10K] Liaison for Consideration - ITU-T


thanks for sharing this letter. 


Peter Stassar,

As the listed ITU-T contact, I’ll address my question to you.  I am seeking clarification of the last sentence of this paragraph.


At the SG15 Plenary Meeting in Geneva, 19 – 30 June 2017, it was provisionally agreed to use EVMRMS (RMS of Error Vector Magnitude), corrected for the effects of I-Q offset, and a separate limit for corrected I-Q offset as metrics for the quality of the transmitter. There was also agreement that the results from testing of I-Q imbalance and Quadrature Error were not sufficiently consistent to justify their removal from the EVMRMS metric or the introduction of these parameters as additional metrics for the quality of the transmitter.


It seems to say that the inconsistency has caused the parameters to neither be accepted nor rejected.  Does that mean they remain provisional? 





From: John D'Ambrosia [mailto:jdambrosia@xxxxxxxxx]
Sent: Sunday, October 22, 2017 8:31 PM
To: STDS-802-3-B10K@xxxxxxxxxxxxxxxxx
Subject: [802.3_B10K] Liaison for Consideration - ITU-T


Dear Study Group Participants,

In response to the liaison sent out of the July Plenary, the ITU-T has responded with the following -


I spoke with our WG Chair, Mr. Law, who has asked our Study Group to consider this liaison at the Nov Plenary. 




John D’Ambrosia

Chair, IEEE 802.3 Beyond 10km Optical PHYs Study Group