[802.3_25GSMF] Parameter changes for MPI penalty

[David Lewis <David.Lewis@xxxxxxxxxxxx>]

All,

 

At the ad hoc on Wednesday I took an action to provide the changes that would be needed in the optical link parameter tables for an MPI penalty of 0.7 dB.  See the attached presentation for what I think is needed.

 

The approach is to tighten Rx sensitivity and SRS by 0.7 dB for both the -LR and -ER variants.  In addition this proposal tightens the Transmitter reflectance from a maximum of -12 dB to a maximum of -26 dB.

 

Please use the reflector for discussion of this topic.  Our next ad hoc is on Wed June 28^th and will be the only one between now and when the sponsor recirculation ballot ends.

 

Regards,

David Lewis

P802.3cc Task Force Chair

Attachment: Parameter changes for MPI.pdf
Description: Parameter changes for MPI.pdf