ITC Investigation No. 337-TA-817
`
`IEEE 802.3af Task Force Minutes
`
`LaJolla
`
`Minutes of the IEEE 802.3af task force meeting in LaJolla CA, July ll-12, 2000
`
`Tuesday, July ll, 2000,
`Robert D. Love vohmteered to be Recording Secretary for this meeting
`
`Opening and introductions — about 30% are at 802.3af for first time. About 15% are at an 802 meeting for
`the first time
`
`Opening remarks — Steve Carlson (Slides available)
`The 802.3af attendance list is circulated and posted.
`0
`Sec Objectives for this Meeting chart.
`0
`ls‘ draft of 802.3af document is now available. Look at document structure. Content to be fleshed out
`later.
`Two lists are being maintained, a decision list and a requirements list.
`Instructions for access to the protected sight: www.ieee802.org/3/af/private/index.html
`Usernalne
`>l< * >l< >l<* >l<
`Password
`******
`
`0
`0
`
`After Steve’s opening remarks we went right to the presentations for the meeting. Note that all
`presentations are or will be on the 802.3af web site
`
`Presentations:
`“Safety Considerations: Power Fault Protection”
`0
`Lisa Leo, Tyco Electronics:
`I Rick Brooks (presenter) and Larry Miller Nortel Networks “Coupled Diode Discovery Protocols and
`Prototypes” — and a demonstration of working hardware, including a live test 011 Mike McCormack’s
`Ethemet PCMCIA card in his laptop.
`“DTE Power via MDI Discovery Process”
`G. Vergnaud / R. Gass / R. Jaeger — Alcatel
`John Austerrnan CMS Teclmologies “Power, Detection and Discovery over the Existing Ethemet
`Wiring” Presentation and demonstration
`Robert Leonowich, Lucent Technologies: “IEEE 802.3af DTE Power via MDI Resistive Signature
`and Detection Protocol Follow-up”
`
`I
`0
`
`0
`
`Lunch Break
`
`Afternoon Session:
`Instnictions for sending documents to the webmaster for posting
`1.
`Send it in PDF fonnat
`2. Make sure the docmnent infonnation is filled out correctly
`3. Be explicit as to where the document is to be posted
`
`More Presentations:
`“PowerDsine Follow-On”
`0
`Amir Lehr, Power Dsine:
`0
`Robert D. Love, LAN Comiect Consultants, “Mid-Span Issues”
`Following his presentation Robert volunteered to head up an ad-Hoc to address the issues
`associated with Mid-Span powering on the unused pairs, and develop test and test limit
`recommendations. Members, R. Love, Michel Bohbot, Sterling Vaden, Dan Dove, Larry Miller,
`Chris DiMir1ico, Mike McCormick
`0 Michel Bohbot, Norcbr/CDT, Roger Karam, Cisco, Moty Goldis, Lucent, “Power DTE Mid-Span
`Cabling Implementation”
`Chris Cullen, Cisco: “Power over Signal Pairs — Why is Cisco Pursuing?”
`Karl Nakamura, Cisco: “Economic Feasibility of Power Over the Signal Pairs”
`Roger Karam, Cisco:
`“Technical Feasibility of Providing Power Over the Signal Pairs ”
`The task force expressed its gratitude to Roger Karam for the prodigious amount of research and
`testing he presented to the group.
`
`0
`I
`I
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`Prepared by RD Love
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`Straw poll #1
`Is 14 watts maximum power level delivered to
`the DTE acceptable?
`By Mike MeCorrnack
`Technical - 75%
`
`YES
`E
`
`Z2o
`
`Abstain
`No Vote
`Motion Carries
`(The 14 watts number was based on being able to deliver that power with a 48-volt supply)
`
`ITC Investigation No. 337-TA-817
`
`IEEE 802.3af Task Force Minutes
`
`LaJolla
`
`0
`
`0
`
`Larry Miller (Nortel) volunteered to take a theoretical look at some of the critical performance
`parameters based on the massive data presented.
`Kevin Brown (Presenting), G. Hanna, Broadcom “Midspan Power Insertion and 1000 BASE-T Test
`Results “
`
`Wednesday, July ll, 2000
`
`Housekeeping:
`If there are votes without overwhelming consensus, then each side will be given about a minute to present
`the two views to the 802.3 plenary.
`
`Mike McCorrnack will be updating the draft based on 802.3 approval of decisions, rather than based on
`802.3af decisions.
`
`Presentations continue
`0 Mike McCorrnack, 3Com “Hard Choices for Voltage”
`
`2“d Don Pannell
`
`All Voting
`
`Motion #1
`Move that the maxiinuin continuous current
`draw at the PD end be no more than 350 ma.
`By Mike MeCorrnack
`2“d Don Pannell
`Technical — 75%
`Eo
`
`All Voting
`802.3 Voters
`
`YES
`58
`31
`
`O
`@
`
`Abstain
`U1
`>—l
`Motion Carries
`
`Presentations:
`0
`Arlan Anderson, Nortel Networks; “Powered Device Limits”
`0
`Hemy Heinrichs, Pulse,
`“Transformer Characteristics when Used in Mid-Span Applications”
`
`Break and AdHoe meeting on Mid-Span Power issues
`
`Voting Rights — reviewed
`
`Presentation:
`0
`Karl Nakainura, Cisco: “Discovery Method Evaluations”
`Discussion to have all parties come forward with evaluations.
`Request for straw poll to see if any of the schemes should be eliminated.
`
`STRAW POLL #2 (Chicago Voting Rules) All voting - Acceptability of pro osals as a candidate
`YES NO
`| Abstain
`39
`2
`I 17
`
`Resistor Detection proposed by Lucent
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`Prepared by RD Love
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`ITC Investigation No. 337-TA-817
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`IEEE 802.3af Task Force Minutes
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`LaJolla
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`Diode/Capacitor Detection (Nortel)
`Big Capacitor (Alcatel)
`Serial Data Detection (CMS)
`Big Capacitor (Power Dsine)
`
`42
`18
`7
`24
`
`0
`15
`30
`0
`
`| rs
`| 27
`I 23
`| 34
`
`4 of the 5 move forward. The CMS design does not progress to the next round.
`
`Bob Leonowich revisiting charts from the Monday evening tutorial’s Comparative Cost Matrix”
`
`STRAW POLL on preference for which proposal
`STRAW POLL #3All voting — Choosing a candidate — Choose 1
`
`Resistor Detection proposed by Lucent
`Diode/Capacitor Detection (Nortel)
`Big Capacitor (Alcatel)
`Big Capacitor (Power Dsine)
`
`YES
`19
`23
`3
`4
`
`This Straw poll is for the benefit of those that need to prepare the material for the task force. No contenders
`eliminated as a result.
`
`Request made by RD Love to use the reflector more. Steve agreed and reminded all that there are to be no
`attachments made to the reflector notes.
`Instead, postings for the web site should be sent to the webmaster.
`
`Arlan Anderson, Nortel re-presenting “Powered Device Limits” with some change in numbers.
`The eonected version will be posted.
`
`Discussion of Economic Feasibility for powering over the Signal pairs.
`Are there any issues:
`Dan — automatic polarity correction — do we want it.
`
`Straw Poll #4
`Has Economic viability for power over signal
`airs been demonstrated?
`Eo
`Abstain
`YES
`8
`47
`All Voting
`3
`26
`802.3 Voters
`O
`Passes, Economic Feasibility has been shown for powering the signal pairs
`
`O
`
`Technical feasibility for power over the signal pairs.
`Presentation:
`I
`Dan Dove on Technical Viability Issues: SignalPair Analysis, What needs to be done?”
`
`- Geoff stated that technical feasibility is
`Geoff Thompson provided a definition of teclmical feasibility.
`established when we go to ballot is a much higher standard than at PAR time. Continuous evaluation
`throughout development with established worst case basis relevant to the stage of the product we are in.
`
`Straw Poll on Technical Feasibility for powering the signal pairs:
`
`Straw Poll #5
`Has Technical feasibility for power over
`signal pairs been demonstrated?
`YES
`INO
`Abstain
`51
`| 2
`6
`All Voting
`24
`| 2
`802.3 Voters
`Passes, Technical Feasibility has been shown for powering the signal pairs
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`Prepared by RD Love
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`ITC Investigation No. 337-TA-817
`
`IEEE 802.3af Task Force Minutes
`
`LaJolla
`
`Agreed that we need a list of requirements for powering the unused pairs: If the work is not done, then
`powering the spare pairs drop off the list.
`
`Lany’s 3-finger list. Focus on impairments. Ad Hoc will try to drive the issues on MidSpan powering of
`the unused pairs.
`
`Motion
`Move that polarity inversion shall be supported
`at the PD.
`By Dan Dove
`Technical - 75%
`
`2“? Hank Heirrrichs
`E0
`
`Abstain
`
`YES
`
`All Voting
`802.3 Voters
`
`Withdrawn:
`
`Motion
`Move that the minimum output voltage at the
`PSE end shall be 46.0Vdc
`By Mike McCorrnack
`| 2“‘l Arlan Anderson
`Technical - 75%
`I
`Eo
`
`YES
`
`Abstain
`
`All Voting
`802.3 Voters
`
`Mofion Withdrawn. — Don’t forget the work must be done.
`
`I 2“? Karl Nakamura
`Eo
`‘ Abstain
`
`Motion #2
`Move that 802.3af Task Force hold an interim
`meetmg in the second week in September in
`Boston.
`By Robert Love
`Procedural - 50%
`YES
`28
`802.3 Voters
`Motion Passes
`Editors Report:
`The private area will be in the draft. Additional information to be provided by the ADHOC
`Summary of AdHoc’s initiated this meeting:
`Alan Flatman chaired to develop a liaison statement to SC25/WG3 regarding LCTL and RD
`Arlan Anderson is chairing the Power Supply Ad Hoe
`Mike McCorrnack is chairing the High Level State Machine Ad Hoc
`Robert Love is chairing the Mid-Span Powering AdHoc.
`
`O
`
`O
`
`Motion 3
`Accept the Ottawa Interim Meeting Minutes
`By Don Pannell
`2"? Roger Karam
`Procedural - 50%
`YES
`All - Voice Vote
`Motion passes
`Move to close the meeting at 4:43pm Approved by voice vote
`
`NO Abstain
`0
`0
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`Prepared by RD Love
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