AW: [EFM] PON Optics Telephone Conference 30th Jan
Thanks Ariel,
This was pretty much my assumption. Based on this,
it would be easier to accommodate /I/'s in the PMD between bursts
rather than change the PCS?
Tom
-----Ursprüngliche Nachricht-----
Von: Ariel Maislos [mailto:ariel.maislos@xxxxxxxxxxx]
Gesendet am: Donnerstag, 6. Februar 2003 22:51
An: Murphy Thomas (COM FO D O); stds-802-3-efm@ieee.org;
Vipul_Bhatt@xxxxxxxx; wdiab@xxxxxxxxx
Betreff: RE: [EFM] PON Optics Telephone Conference 30th Jan
Tom,
I'd venture to say that for the PMD to see zeros on the transmit side
when the MAC is inactive would require a change to the PCS.
This is true for many reasons, one of which for example is the fact the
all-zeros is not a legal 10bit codeword, so it would never be issued by
the PCS as one of its functions is the guarantee of minimal transitions.
Ariel
> -----Original Message-----
> From: Thomas.Murphy@xxxxxxxxxxxx [mailto:Thomas.Murphy@xxxxxxxxxxxx]
> Sent: Wednesday, February 05, 2003 01:51
> To: ariel.maislos@passave.com; stds-802-3-efm@ieee.org;
> Vipul_Bhatt@xxxxxxxx; wdiab@xxxxxxxxx
> Subject: AW: [EFM] PON Optics Telephone Conference 30th Jan
>
>
> Ariel,
>
> Thanks for the reply. Yes this answers the question leading
> to the next one
> - can
> this be changes so that the PMD sees only zeros, without
> having to change the PCS/PMA?
>
> Regards
>
> Tom
>
>
>
> -----Ursprüngliche Nachricht-----
> Von: Ariel Maislos [mailto:ariel.maislos@xxxxxxxxxxx]
> Gesendet am: Dienstag, 4. Februar 2003 03:23
> An: Murphy Thomas (COM FO D O); stds-802-3-efm@ieee.org;
> Vipul_Bhatt@xxxxxxxx; wdiab@xxxxxxxxx
> Betreff: RE: [EFM] PON Optics Telephone Conference 30th Jan
>
> Tom,
>
> My perspective on point ii) follows:
> The ONU stops forwarding frames at the MAC Control level,
> this means that the MAC is idle and not generating frames. In
> turn the PCS generates /I/ characters to fill the line. So
> the PMD will see serialized /I/ output from the PMA when the
> ONU is not gated.
>
> Does this answer the question?
>
> Ariel Maislos
> Passave
>
> > -----Original Message-----
> > From: owner-stds-802-3-efm@majordomo.ieee.org
> > [mailto:owner-stds-802-3-efm@majordomo.ieee.org] On Behalf Of
> > Thomas.Murphy@xxxxxxxxxxxx
> > Sent: Monday, January 27, 2003 09:37
> > To: stds-802-3-efm@ieee.org; Vipul_Bhatt@ieee.org; wdiab@cisco.com
> > Subject: [EFM] PON Optics Telephone Conference 30th Jan
> >
> >
> > Hello All,
> >
> > The highlight of our Thursdays (if not the whole week)...
> >
> > Time to start the PON optics conference calls again.
> >
> > First off a couple of important points:
> >
> > 1) This is the last time I plan to 'blanket-bomb' this mail to the
> > main reflector. I will set-up a smaller distribution list.
> > Please send me
> > an e-mail if you wish to be placed on the list.
> >
> > 2) I have attached a list of comments from the last meeting which
> > were flagged
> > for ad-hoc attention. The order reflects priority.
> > Please comment on this if
> > I am forgetting something or if the list should be
> re-structured.
> >
> > For those of you who don't open attachments, I also have a
> couple of
> > questions up-front:
> >
> > i) In the upstream signal detect discussions, the point
> arose the SD
> > that we define (or make optional)
> > probably will not meet the PMA requirements of an
> > existing CW design -
> > Question: what will happen if no SD
> > is present, or, hardwired high etc.
> >
> > ii) Protocol People: What comes into the PMD between bursts? Is
> > there a defined output?
> >
> > I will distribute the call in details at a later point but the time
> > will hopefully remain the same. i.e. 08:00 PAC, Thursdays
> >
> > Best regards
> >
> > Tom
> >
> > <<Comments with Action Items.pdf>>
> >
> >
> >
>