2. The average wavelength is 849.4; worst case 845.7
3. The average OMA power is -1.24; worst case -2.42
Using these numbers in the IEEE model yields 5.2 dB of margin at 400m.
Using these numbers in the IEEE model yields 3.3 dB of margin at 550m.
The more I look at this, I think we are being REALLY, REALLY conservative in IEEE, maybe too much so; here is the distribution of spectral width:
Steven E.
Swanson
Corning Incorporated
800 17th Street NW,
HI/ES
Hickory, NC 28603-0489
t 828-901-5328
f 828-901-5533
c
607-725-1129
swansonse@xxxxxxxxxxx
From: Matt Traverso (mattrave) [mailto:mattrave@xxxxxxxxx]
Sent: Thursday, July 28, 2011 9:05 PM
To: STDS-802-3-MAINT@xxxxxxxxxxxxxxxxx
Subject: [802.3_MAINT] Follow up on proposed Comment to add distance specification for 10GBASE-S over OM4 media
Hello to the now very active IEEE Maintenance
reflector!
As I mentioned during my presentation at the IEEE plenary in
July I would like to schedule a few calls to follow up on the questions/comments
raised during the meeting. (see http://www.ieee802.org/3/maint/public/traverso_1_0711.pdf)
My goal for these calls per the discussion on the floor is to
try to build more confidence in the proposed reach value. I believe that
there was broad consensus at the meeting that (a) goal of specifying value is
worthwhile,(b) theoretical analysis was sound. I hope to confirm my
perception at the first call & discuss further justification for 400m
reach.
My intention is to submit a comment by the comment deadline
of Aug 26th.
Call timing:
Wednesday Aug 10th, 10 – 11:30 am PT
Wednesday Aug 17th , 10 – 11:30 am
PT
Meeting login details below
best regards
--matt traverso
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