AW: [802.3ae_Serial] Updated issue list; phone conference tomorrow as usual
Hi,
Concerning the letter from ITU there is stated :
issues concerning link verification and link engineering (In particular in
light of the attenuator management in 1550nm range). This may be covered by
this agenda item,
And it stated that there is something to be covered by other groups.
I suspect this is the triple tradeoff and the description and use of the
RMS width for SLM . As this is not on the agenda I am a bit curios who is
the group to deal with this?
Regards Juergen
> ----------
> Von: DAWE,PIERS (A-England,ex1)[SMTP:piers_dawe@xxxxxxxxxxx]
> Gesendet: Montag, 23. Juli 2001 20:29
> An: '802.3ae Serial'
> Betreff: [802.3ae_Serial] Updated issue list; phone conference
> tomorrow as usual
>
>
> Here are the list of actions from the database with some other known to-do
> items. You will see that the comment database is pretty repetitive:
> basically, check all the dB numbers in all the tables. By eliminating
> unallocated margin and making the link attenuation normative, we should
> end
> up with simpler, more understandable tables. I am working on a
> spreadsheet
> update to support this.
>
> Serial PMD ad hoc issues list
> -----------------------------
> # numbers are from comment database
>
> General
> -------
> Liaison letter from ITU-T SG15
> Optical power measurement in network maintenance
> (Technical feasibility - covered by other groups)
>
> All wavelengths
> ---------------
> # 317 combine Rx jitter tolerance and Rx sensitivity tests
> further work (add calibration sequence, etc.).
>
> Road-test jitter and stressed sensitivity measurements
> Jitter spec values
>
> Road-test the test patterns (LAN and WAN?)
>
> SR/SW
> -----
> # 77
> Check SR/ SW Rx sensitivity value. May need to allow for jitter penalty.
> # 78
> Check SR/ SW stressed Rx sensitivity value. May need to allow for jitter
> penalty.
> # 79
> Check SR/ SW vertical eye closure penalty value.
> # 81
> Check SR/ SW link power penalties.
>
> LR/LW
> -----
> Obtaining test fibers or equivalent for 1310 dispersion penalty
> measurement
> # 364
> power budget, 1310 nm Tables 52- 12, table 52- 14 and tables 52- 15 are
> not
> clear understandable and probably inconsistent.
> Send to Serial PMD ad hoc.
> # 367,368,130
> maximum average transmitter power and receiver overload changed to 0.5 dBm
> by #130 and sent to Serial PMD ad hoc for final resolution.
> # 89
> Check LR/ LW Tx triple trade off table.
> # 86
> Check LR/ LW Rx sensitivity value. May need to allow for jitter penalty.
> # 87
> Check LR/ LW stressed Rx sensitivity value: thought very demanding by
> some.
> May need to
> allow for jitter penalty.
> # 88
> Check LR/ LW vertical eye closure penalty value.
> # 90
> Check LR/ LW link power penalties. Need to allow for reflection noise and,
> to be decided,
> jitter penalty.
>
> ER/EW
> -----
> # 363
> power budget, 1550 nm Tables 52- 17, table 52- 18 and tables 52- 19 are
> not
> clear understandable and probably inconsistent.
> Send to Serial PMD ad hoc.
> # 96
> Check ER/ EW link power penalties. May need to allow for jitter penalty,
> to
> be decided.
>
> Tomorrow's phone conference
> ---------------------------
> Usual coordinates:
> 15:15 GMT = 4:15 pm BST = 17:15 CET = 11:15 am EDT = 8:15 am PDT,
> Tuesday
> +1(816)650-0631 Access code 39209
>
> Piers
>