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Re: [8023-10GEPON] ODP: [8023-10GEPON] [POWER_BUDGET] ad hoc group meeting




Hi Maurice,
 
Nice saying :-) I agree with You that Ethernet technology has a very strong neck and pushes the technical development to the limits - 10GE was also supposed to storm the industry and reach the 10x 3x ratios rapidly though based on what the HSSG presentations show - we are still quite  far away from 10x 3x ratio - people say 10GE equipment is more 10 x 5x for now and perhaps with the new SFP+ modules the cost will finally go down to 3x when compared with 1G equipment.
I am curious what You think about it ? Do we have a sweet spot in here and can we sit on the 10GE wave and take advantage of their future SFP+ modules ? If so I believe we can argue that there will be a drive to lower the equipment cost and spur the development. Combined 10GE and 10G EPON will definetely push the barriers even further ..
 
Best wishes

Marek Hajduczenia (141238)
SIEMENS Networks S.A. - IC COM D1 R
Rua Irmãos Siemens, 1
Ed. 1, Piso 1
Alfragide
2720-093 Amadora
Portugal
* Marek.Hajduczenia@siemens.com
http://marekhaj.easyisp.pl/index.php
(+351.21.416.7472  4+351.21.424.2082

 

 


From: Maurice Reintjes [mailto:maurice.reintjes@MINDSPEED.COM]
Sent: quarta-feira, 31 de Janeiro de 2007 1:05
To: STDS-802-3-10GEPON@listserv.ieee.org
Subject: Re: [8023-10GEPON] ODP: [8023-10GEPON] [POWER_BUDGET] ad hoc group meeting


Hi Marek:  We have a saying in the US:   "Nothing is sure but death and taxes".

That said, microelectronics has a history of continued improvement.

I have taken advantage of this in the past.  In a real life example in 1989, I  proposed that
every test be datalogged at my previous employer, and that the data be stored on a
network drive, to be made avaiable to anyone who had good reason to see it.
The IT department howled that no disk(s) existed that was(were) big enough to store this data,
and if there were, all the data we collected would soon outgrow any possible drive(s)
that existed, even if they could afford to buy them.

Fast forward to 2007.  Every datalog is still there:  Even from 1989,
and they are still logging more data,  and paying less to store it than ever, on fewer drives.

The choice of the RX sensitivity and TX power numbers is only going to affect the
implementation schedule, in that if the choices are too aggressive more expensive
technology will be needed  for a longer time period.

For example:  If  we set the RX sensitivity for a 10GBASE-PX20 ONU to be -25dbm,
and this is not achievable with a PIN receiver until 2014 rather than 2010, will the
need to use an APD-based receiver for four more years adversely affect the
implementation of the standard?  I dont' think so.

Ethernet's appeal has a history of concentrating massive energy into driving
the cost down on the technology, and making it widely available.  When
a standard truly fits the five criteria, tremendous market forces come to bear
in the implementation to make it both simple and low-cost.

Best Regards

Maurice Reintjes
MindspeedTM
Hillsboro, Oregon,USA
Office Phone (503)-914-5370
Mobile (503)-701-0797



"Hajduczenia, Marek" <marek.hajduczenia@siemens.com>

01/30/2007 04:26 PM

To
<maurice.reintjes@MINDSPEED.COM>, <STDS-802-3-10GEPON@listserv.ieee.org>
cc
Subject
ODP: [8023-10GEPON] [POWER_BUDGET] ad hoc group meeting





Maurice,
what You're suggesting is thus that we ought to go the same way i.e. set the targets aggresively and hope for teh best that the manufacturers can come up with the compliant equipment ? 10G is not 1G and we heard some opinions about the component progress and development, which may result in significant improvement in the next 2-3 years but still, nobody can say that for sure right ?
Best wishes
Marek

________________________________

Od: Maurice Reintjes [mailto:maurice.reintjes@MINDSPEED.COM]
Wysłano: Wt 1/30/2007 10:29
Do: STDS-802-3-10GEPON@listserv.ieee.org
Temat: Re: [8023-10GEPON] [POWER_BUDGET] ad hoc group meeting



Glen:  The procedure you outline below is close to how Clause 60 was developed.

What helped EFM in terms of Link budget was choosing an aggressive target
(one which was just barely ahead of the present state of the art  for low-cost components)
for TX power and RX sensitivity, and having the suppliers stretch to meet it.
By the time the standard was ratified suppliers were ready.

Best Regards

Maurice Reintjes
MindspeedTM
Hillsboro, Oregon,USA
Office Phone (503)-914-5370
Mobile (503)-701-0797




Glen Kramer <glen.kramer@teknovus.com>

01/30/2007 01:42 PM
Please respond to
glen.kramer@teknovus.com


To
STDS-802-3-10GEPON@listserv.ieee.org
cc
Subject
Re: [8023-10GEPON] [POWER_BUDGET] ad hoc group meeting                

                                 




Robert,

This is a good plan for the call.  To clarify item (b) below, as an outcome
of this ad hoc I would like to see two tables listing receive and transmit
characteristics for each PMD. As an example, I attached corresponding tables
from clause 60 (1000BASE-PX20).  

I am thinking of the following iterative process:

1) Pick Rx and Tx technologies that may get you the required budget
2) Select a specific set of parameters (as in the attached tables) that
satisfy the required budget and which the chosen technologies can achieve.
3) Verify the selected combination of parameters using the Link Model
spreadsheet.
4) If verification fails, return to step 1) or 2).

Not all the parameters in the attached tables are used in the spreadsheet,
so we probably don't need to sweat right now on those parameters that do not
directly affect power budget (like laser on/off, settling time, or jitter
characteristics).

Those, who have been through the EFM PMD's pains, please comment on what
worked and what didn't in selecting the 1G EPON PMDs.

Thanks,
Glen




> -----Original Message-----
> From: Lingle, Jr, Robert (Robert) [mailto:rlingle@OFSOPTICS.COM]
> Sent: Monday, January 29, 2007 7:11 PM
> To: STDS-802-3-10GEPON@listserv.ieee.org
> Subject: Re: [8023-10GEPON] [POWER_BUDGET] ad hoc group meeting
>
> As a reminder, there will be two meetings with essentially the same
> agenda,
> one Tuesday evening at 7PM EST and the other at 9AM EST Wednesday morning
> (see below).
>
> I am revising the agenda for the first meeting, based on feedback on the
> reflector and some phone conversations.  It seems there is a need to
> better
> understand the meaning of the numbers in the power budget, prior to
> driving
> to solutions for those power budgets. So we will first:
> a. introduce ourselves on the call
> b. tell you what I think Glen wants us to accomplish, then see what others
> think is important
> c. discuss the interpretation of the 29dB channel insertion loss in
> context
> of the EFM power budget and make sure we all agree on what it means.
> Several
> emails on the reflector on 1/28 and 1/29 addressed this subject.
> d. begin looking  at specific past proposals for meeting the 29 dB budget,
> likely to carry over to next meeting.
>
> I will send out some slides prior to meeting.
>
> Robert
>
> -----Original Message-----
> From: Lingle, Jr, Robert (Robert) [mailto:rlingle@OFSOPTICS.COM]
> Sent: Friday, January 26, 2007 10:48 AM
> To: STDS-802-3-10GEPON@LISTSERV.IEEE.ORG
> Subject: [8023-10GEPON] FW: [8023-10GEPON] [POWER_BUDGET] ad hoc group
> meeting - CORRECTE D
>
>
> There was an error in my first email w/r/t to the time of the Wednesday
> 1/31
> call.  It will be held at 9AM to enable European participation.
> **************************************************************************
> **
> ************
> All,
>
> I appreciate the expression of interest I received in the Power Budget ad
> hoc from 10 individuals.  I expect more than that to join the calls.
>
> The first meeting will be held Tuesday, January 30 at 7PM EST, which I
> believe is
> Wednesday January 31 at 9AM in Tokyo. This meeting would likely be
> attended by anyone in Japan, Korea, or the US West Coast.
>
> I will also hold a follow-up call on Wednesday January 31 at 9AM EST
> for anyone on the East Coast of the US or in Europe who wishes to
> participate.  I believe that will be 2 or 3PM for Europe cities.
>
> Toll-free in US                 866-263-8899
> Outside US                  816-249-6061
> Conf. Code                 7707985015
>
> I propose that the ad hoc will meet four times between now and March
> Plenary, with following goals:
>
> 1/30 & 31 - purpose is to review a summary of results and conclusions from
> previously prepared materials, discuss what seem like most likely
> solutions
> for 29dB power budgets, and to generate questions that need answers to
> turn
> preliminary conclusions into consensus conclusions based on cost and
> technical feasibility.  I am preparing that presentation to review in
> consultation with others. Ad hoc participants will be expected to take
> action items from the first meeting to bring back answers to the questions
> raised.
>
> week of 2/12 - purpose is to bring back answers to questions raised in
> previous meeting and debate their meaning, with goal of focusing down on
> one
> PMD proposal one which to analyze further for the 29 dB power budget case.
>
> week of 2/26 - purpose is to finish up any unanswered questions for 29dB
> power budget solution, and begin to discuss whether the 29 dB solution can
> form the basis for reduced cost PMDs for lower power budget cases?
>
> week of 3/5 - review and revise a presentation for March plenary
>
> Robert
>
> Robert Lingle, Jr.
> Fiber Design and Transmission Research
> OFS Corporate R&D, Atlanta
> 404-886-3581 (cell)
> 770-798-5015 (office)