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Re: [802.3_OMEGA] Baseline test for IEEE 802.3cz PMD/MDI

Hello Steve,

Thank you for your contribution.

I have a comment on the below statement:

> 300.8.2.2.2 Maximum discrete reflectance
> The maximum discrete reflectance shall be less than TBD dB.

According to the other IEEE802.3 optical PHY standards, the optical reflection

(optical reflection tolerance for optical transmitter) shall be less than -12dB.

I think we'd better to follow the wisdom of old people as far as there is no particular reason.

RIN influenced by optical reflection is varied by the design of both VCSEL chip and optical coupling system,

so that it will be easier (with lower cost) to purchase them in the market.

The attached letter might be good to understand the definition of optical reflection of the channel.

Best regards,

Takashi Fukuoka


On 2021/02/24 0:49, Swanson, Steven E wrote:

All,

 

On the IEEE 802.3cz call today, I provided a contribution on baseline text for the PMD/MDI (attached). I would like to make a motion to adopt this text as part of the baseline text at our next interim meeting as we move to D1.0.

 

The purpose of this note is twofold:

 

  1. Can I ask you to review the contribution and let me know if you have any comments to improve the text?
  2. Can I ask you to review the contribution and let me know if I can add you as a supporter for the contribution?

 

I would like to get your input prior to Friday, March 5 so I can make any necessary changes and submit for consideration by IEEE 802.3cz at our March 16 interim meeting.

 

Thanks,

 

Steve

 

Steven E. Swanson

Senior Standards Manager

Distinguished Associate

 

Global Technology & Industry Standards

MT&E

Corning Optical Communications

4200 Corning Place

Charlotte, NC 28216

 

m 607-725-1129

 

swansonse@xxxxxxxxxxx

 

Standards are a bridge between markets and technologies; whoever controls the bridge controls the future…

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-- 
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福岡　隆（Takashi Fukuoka）
Sumitomo Electric Industries, Ltd.
TEL:090-8139-4491 (Direct)
e-mail: fukuoka-takashi@xxxxxxxxx
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