RE: [EFM] Moving forward on extended temperature range optics
Guys,
Please remember which forum you are in and what this group can and cannot do for you.
802 writes interoperability standards for equipment ("box level" or "system level"), not product specs, still less procurement specs for components of the box.
You are very welcome to discuss specific procurement issues off line. Here, you should be addressing general issues of economic or technical feasibility and market potential.
Bruce, please add me to your list.
Thanks,
Piers
> -----Original Message-----
> From: Bruce Tolley [mailto:btolley@xxxxxxxxx]
> Sent: 17 January 2003 17:30
> To: Ford, Brian; 'Bruce Tolley'; piers_dawe@xxxxxxxxxxx;
> stds-802-3-efm@ieee.org; Ford, Brian
> Subject: RE: [EFM] Moving forward on extended temperature range optics
>
>
> Brian
>
> Thanks
>
> Yes. My thoughts are that we want the case temperature extended range
> testing spelled out in the [normative] PMD clauses and the ambient
> temperature and system issues spelled out in the annex and
> parts of the
> latter might well be references to other standards.
>
> Bruce
>
> At 11:26 AM 1/17/2003 -0500, Ford, Brian wrote:
> >Bruce,
> >
> >I too will be out of the country next week. Please put me on
> the e-mail list
> >so that I will see conference call info on this topic.
> >
> >Please pass along to the group that BellSouth strongly
> supports an extended
> >temperature range requirement. BellSouth would like to see
> these numbers
> >called out in the specification as normative numbers (please
> keep in mind
> >that BellSouth and many of the other service providers think
> in terms of
> >ambient temperature and not case temperature...however it
> would seem that
> >these two items are strongly related).
> >
> >I will also attach the short temperature presentation that I
> displayed at
> >the Vancouver meeting. This is the PowerPoint that we
> provide to all of our
> >vendors when they come into the lab regarding temperature
> requirements (this
> >is in addition to some GRs that we point to ... GR-63 CORE
> and GR-1089 I
> >believe).
> >
> >Hope this helps,
> >
> >B.F.
> >
> >Brian Ford
> >BellSouth Telecommunications
> >Science and Technology - Exploratory Development
> >Brian.Ford@xxxxxxxxxxxxx
> >+1 404 332 2217
> >
> >-----Original Message-----
> >From: Bruce Tolley [mailto:btolley@xxxxxxxxx]
> >Sent: Thursday, January 16, 2003 2:59 PM
> >To: piers_dawe@agilent.com; stds-802-3-efm@ieee.org
> >Subject: [EFM] Moving forward on extended temperature range optics
> >
> >
> >
> >Piers and all
> >
> >I gave my self the action to help move forward the outstanding issue
> >regarding extended temperature ranges for P2P and P2MP optics
> >
> >We have an objective to include in our specification of
> PHYs, support for
> >extended temperature range optics
> >
> >The task force has in the past passed motions to specify EFM
> optics at -40
> >to +85 C
> >
> >Network operators have on multiple occasions communicated
> the requirement
> >for extended temperature solutions.
> >
> >As recently as the Vancouver meeting, several box vendors
> (including me)b
> >communicated the requirement for extended temperature range
> optics. We need
> >to agree on a path to move forward.
> >
> >So if interested parties want to forward to me their email
> addresses, I
> >will host a conference call next week dedicated to this
> issue. I think we
> >need to focus on a test specified in each PMD clause, to agree on the
> >ranges for OLT and ONU optics, to consider the possible
> special case of
> >bidis that include 1550 nm DFBs, and to identify any PMD
> that might only
> >need to be supported at standard, commercial temperatures.
> >
> >thanks
> >
> >Bruce Tolley
> >Cisco Systems
> >
> > At 04:11 PM 1/8/2003 +0100, piers_dawe@xxxxxxxxxxx wrote:
> >
> > >G.983.3 refers to ETS 300 019. This is a very readable series of
> > >documents from the European Telecommunications Standards
> Institute, giving
> > >a classification of environmental conditions, e.g. weatherprotected
> > >locations, non-weatherprotected, underground. It uses
> four classes of
> > >climatic conditions:
> > > "applies to most of Europe"
> > > extended
> > > extremely cold
> > > extremely warm dry
> > >
> > >And even better, up-to-date drafts are available on the
> web, e.g. at
> >
> >http://webapp.etsi.org/action%5COP/OP20030321/en_3000190104v0
> 20101o.pdf .
> > >
> > >It is not the business of 802 to pick between these
> classes but we can
> > >refer the readers of our standard to this information.
> > >
> > >ITU-T and ANSI T1 do not have similar documents.
> > >
> > >Both G.983.3 and refer to IEC 60721, classification of
> environmental
> > >conditions.
> > >
> > >IEC 60721-3-4 - Ed. 2.0 Classification of environmental
> conditions - Part
> > >3: Classification of groups of environmental parameters and their
> > >severities - Section 4: Stationary use at non-weatherprotected
> > >locations 1995-01 is available for CHF99 at
> > >https://domino.iec.ch/webstore/webstore.nsf/artnum/019208 .
> > >
> > >Piers
> >
> >
> >Bruce Tolley
> >Senior Manager, Emerging Technologies
> >Gigabit Systems Business Unit
> >Cisco Systems
> >170 West Tasman Drive
> >MS SJ H2
> >San Jose, CA 95134-1706
> >internet: btolley@xxxxxxxxx
> >ip phone: 408-526-4534
> >
> >
> >
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> >
>
>
> Bruce Tolley
> Senior Manager, Emerging Technologies
> Gigabit Systems Business Unit
> Cisco Systems
> 170 West Tasman Drive
> MS SJ H2
> San Jose, CA 95134-1706
> internet: btolley@xxxxxxxxx
> ip phone: 408-526-4534
>
>