RE: [EFM] Moving forward on extended temperature range optics
Bruce,
I want to express my gratitude for taking and keeping the ER Optics action
item. As you know I expressed my company's position (@ Vancouver)for the
need of ER optics and that 802.3ah must include this as normative. I am in
full support of your effort will try to attend the conference call.
Richard Michalowski
Sprint-Local Telecommunications Division
913.624.3882
Richard.Michalowski@xxxxxxxxxxxxxxx
> -----Original Message-----
> From: Bruce Tolley [mailto:btolley@xxxxxxxxx]
> Sent: Thursday, January 16, 2003 1:59 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
Richard Michalowski.vcf