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Please note – during the course of doing this, I found one needed change that was left out of Clause 145. It is in (145/33).4.7, and I put in the change for clause 33 in the proposed edits, but, if you want to avoid a comment on the next
draft (and 145.4 doesn’t broadly just incorporate 33.4.7 by reference), the same change should be incorporated in 145.4.7. The change is below: Change to insert 2.5G, 5G and 10G references: The differential impedance of the transmit and receive pairs at the PHY’s MDI shall be such that any reflection shall meet the return loss requirements as specified in 14.3.1.3.4 for a 10 Mb/s PHY, in ANSI X3.263:1995 for a 100 Mb/s PHY,
George A. Zimmerman, Ph.D. President & Principal Consultant CME Consulting, Inc. Experts in PHYsical Layer Communications 1-310-920-3860 From: George Zimmerman [mailto:george@xxxxxxxxxxxxxxxxxxxx]
The edits that added operation on 2.5G 5G and 10GBASE-T were entirely independent of the type of the PSE. Attached is a detailed listing of the edits, checked from the compare of 802.3bt D2.25 vs. 802.3-2015, a manual check to Clause 145
instances of 2.5G/5G and 10G, as well as the listing of edits I did to put in 2.5G and 5G in the first place. Where things differed, I aligned to the latest 802.3bt text. Interesting fun fact – it is now 12:01AM, making it 3/15/2017 – exactly 1 year to the day since I put together the detailed list of edits that put in 2.5G and 5G…. I seem to recall that was a late night exercise too. George A. Zimmerman, Ph.D. President & Principal Consultant CME Consulting, Inc. Experts in PHYsical Layer Communications 1-310-920-3860 |