Thread Links Date Links
Thread Prev Thread Next Thread Index Date Prev Date Next Date Index

[10GMMF] Minutes for TP2 call 5/26/05

Attendees (no order)
  • Ernie Bergmann
  • Petre Popsecu
  • Pies Dawe
  • David Cunningham
  • Vivek Telang
  • Mike Dudek
  • Joe Gwinn
  • Tom Lindsay
  • Norm Swenson
Agenda approved as below.
No minutes to review.
  • Comment 166
    • General agreement that if anything needs to change due to this comment, it should be done in a TP2 test, since wavelength is the transmitter's responsibility.
    • John Abbott's work was preliminary and did not include connectors and dual launch.
    • Steps required to resolve
      • Tom to request John to complete analysis with dual launch and connectors vs. wavelength.
      • Committee to decide if impact is significant.
      • If so, committee must determine how to implement the change into the test (stressor scaling, etc.).
  • Comments 217,390
    • Peak power (at least due to overshoot) is expected to be most problematic when dispersion (filtering) is low, so EDC will have less to do. However, distortion in front-end may cause nonlinearities that are not recoverable.
    • The peak value due to OMA and average power limits is 2.6 dBm. The amount of allowed overshoot is still under study, but it is 3.5 dBm with perfect symmetry, higher otherwise.
    • There seemed to be general agreement that peak power should be limited.
    • However, there was not consensus that an additional spec is required. Some feel that adjustments to current specs (such as tightening the overshoot masks or reducing max powers) may be sufficient.
    • This comment is still open. Experimental work and more analysis is required. Need BER vs. peak power data.
  • Comment 279
    • The purpose of this TR comment is to leave the door open for dealing with impairments that may not be caught in the current suite of TP2 tests. There was no proposed remedy, since it is not yet known if there are real problems are not. And if there are, they may not be found until interoperability testing.
    • Proposed resolution is to reject, which Piers will not accept, and so it will stay on the books.
    • Tom will write a proposed resolution and submit it to Nick.
  • Comment 290
    • Agreement that this is an editorial issue, and that the TP2 group does not have the specific expertise required to resolve it.
    • Tom will recommend that this comment be passed to Nick as editor, and that Nick should get assistance from IEEE staff if needed.
  • Other
    • There were side discussions about the number of stressor channels in the TWDP test - do we need 3, 1, or even none? Equalizer length? These were deferred for future calls and presentation material is required.
    • There were broad side discussions about TWDP, the mask, linearity, etc. This was deferred for future calls and presentation material is required.
Next call - focus will be on TWDP comments
  • Date: Thurs, June 2, 2005
  • Time: 9:00 AM Pacific
  • Duration: 1:30 max
  • Number: 401-694-1515
  • Access code: 421721#
Comments and corrections?
Tom Lindsay
ClariPhy Communications
phone: (425) 608-0209 or (949) 480-9210
cell: (206) 790-3240
fax: (425) 608-0232
----- Original Message -----
Sent: Wednesday, May 25, 2005 5:20 PM
Subject: [10GMMF] TP2 call 5/26/05

  • Date: Thurs, May 26, 2005
  • Time: 9:00 AM Pacific
  • Duration: 1:30 max
  • Number: 401-694-1515
  • Access code: 421721#
Proposed agenda
  • Attendance
  • Agenda
  • Review previous minutes (none..., sorry)
  • Proposed discussions - the following comments were given to the TP2 ad hoc as specific action items to resolve before London. In addition, there are TWDP-related comments/actions to resolve, which I propose tackling next week after I'm more caught up from missing last week.
    • Comment 166 (dispersion increase at 1355 nm)
    • Comments 217, 390 (peak power limit - Mike Dudek is working on this per the 5/22 TP3 call)
    • Comment 279 (Tx impairments not caught by mask, TWDP, RIN, jitter)
    • Comment 290 (code copyright release statement)
    • Other?
  • Next call June 2
Thanks, Tom