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Re: [802.3_NGBASET] PHY proposal ad hoc



Correction – it is Thursday February 19th  (Thanks, Peter)

 

George Zimmerman

Principal, CME Consulting

Experts in Advanced PHYsical Communications Technology

george@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx

310-920-3860

 

(PLEASE NOTE NEW EMAIL ADDRESS.  THE OTHER WILL STILL WORK, BUT PLEASE USE THIS FOR CME BUSINESS)

 

From: George Zimmerman [mailto:george@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx]
Sent: Tuesday, February 17, 2015 10:33 PM
To: STDS-802-3-NGBASET@xxxxxxxxxxxxxxxxx
Subject: [802.3_NGBASET] PHY proposal ad hoc

 

THe PHY proposal ad hoc will be held Thursday 2/17 , 11AM-12PM Pacific Time.  Bridge to be announced.

 

The issues I see so far are to close on are:

-          Table 80-3 Maximum pause quanta (propose 50 pause quanta = 25600 BT * 25ps/BT / 12.8 ns/pause_quanta

-          Whether FR should be made a mandatory capability (which can be disabled by register), remain optional, or be deleted (various places in the text) (propose remain optional)

-          PBO level at which startup begins (see 113.4.2.5.14) (propose keep at 8 dB)

-          Whether we should continue to support 8 levels of PBO up to 14 dB of PBO (which seems a bit excessive since the maximum required is 6dB) (various places in the text, not flagged by editor’s notes) (propose keep at 14 dB)

-          Whether the transmitter linearity specification is needs reformulating (113.5.3.2, equation 113-9) (do not have a proposal, but what is in there seems likely incorrect)

-          The lowest frequency we care about cabling delay (113.5.4.6.10 & 113.7.2.5) (propose keep as is, because its reasonable, but no detailed analysis)

 

 

George Zimmerman

Principal, CME Consulting

Experts in Advanced PHYsical Communications Technology

george@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx

310-920-3860

 

(PLEASE NOTE NEW EMAIL ADDRESS.  THE OTHER WILL STILL WORK, BUT PLEASE USE THIS FOR CME BUSINESS)