RE: Equalization and benefits of Parallel Optics.
Brad
> From: "Booth, Bradley" <bradley.booth@xxxxxxxxx>
> To: stds-802-3-hssg@xxxxxxxx
> Subject: RE: Equalization and benefits of Parallel Optics.
> Date: Wed, 26 Jul 2000 18:29:56 -0700
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>
> I have one question:
>
> Which of our distance objectives is satisfied with parallel fiber and
> parallel optics?
The 100 m data center applications.
>
> It has been my interpretation that when we talked about 100m of installed
> base of MMF, that we were referring to the MMF fiber currently available for
> use by 802.3z. Parallel optics does not operate over this installed base.
You are correct parallel optics would not operate over an installed two fiber
plant. Parallel optics would loose if you go in to an installed fiber base.
What I suggested was 100m data center applications, where the fiber are not
installed in the building wiring.
Data center application are very significant as stated in the last meeting
about half the total market. Solutions significantly lower cost targeted
for sub 100 m is needed, otherwise there will several proprietary solutions.
Parallel optics is the lowest cost, almost mature after 3 years, lowest power,
and smallest foot print. Parallel optics is ideal to get bandwidth off the
edge of your board.
Serial 850 or CWDM 850 can be another candidate for low cost data center
applications by having cable advantage over parallell fiber. But you need
to offset fiber advantage against power, size, cost, testing, and maturity.
>
> Or am I missing the point here?
>
> Cheers,
> Brad
Thanks,
Ali Ghiasi
Sun Microsystems
>
> -----Original Message-----
> From: ghiasi [SMTP:Ali.Ghiasi@xxxxxxxxxxx]
> Sent: Tuesday, July 25, 2000 8:32 PM
> To: stds-802-3-hssg@xxxxxxxx; Daljeet_Mundae@xxxxxxxxx;
> hakimi@xxxxxxxxxx
> Cc: Ali.Ghiasi@xxxxxxxxxxx
> Subject: RE: Equalization and benefits of Parallel Optics.
>
>
> Sharam
>
> > From: "Hakimi, Sharam (Sharam)" <hakimi@xxxxxxxxxx>
> > To: stds-802-3-hssg@xxxxxxxx, "'Daljeet_Mundae@xxxxxxxxx'"
> <Daljeet_Mundae@xxxxxxxxx>
> > Subject: RE: Equalization and benefits of Parallel Optics.
> > Date: Tue, 25 Jul 2000 21:04:49 -0400
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> >
> >
> > Although parallel fiber is technically an easier solution, the
> major reason
> > for support of 850nm has been to consider the installed base, and
> cost. If
> > users have to pull new fiber, IMHO, parallel fiber would not be on
> top of
> > the list and most of installed base is single fiber.
>
> I did not suggest to pull any new fiber. Limit the shortwave
> variant
> including parallel optics to the data center with 100 m radius.
>
> Thanks,
>
> Ali Ghiasi
> Sun Microsytems
>
> >
> > Sharam Hakimi
> > Lucent Technologies
> >
>
>