[802.3_B400G_OPTX] RINxxOMA Measurement in 802.3dj

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Subject: [802.3_B400G_OPTX] RINxxOMA Measurement in 802.3dj

From: Ahmad El-Chayeb <000037253ce85d83-dmarc-request@xxxxxxxxxxxxxxxxx>

Date: Mon, 16 Sep 2024 09:06:16 +0000

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Reply-to: Ahmad El-Chayeb <ahmad.el-chayeb@xxxxxxxxxxxx>

Thread-index: AdsIFhBHsYHar3+MSvWgcpUuOgRkJA==

Thread-topic: RINxxOMA Measurement in 802.3dj

Hello everyone,

The current draft of the spec defines RINxxOMA measurement as:

This equation has a factor or 4 (6dB) that should not be there if we are trying to match the original 802.3ae – 2002 (clause 52.9.6.3). RINxxOMA should be define as:

Attached is a slide deck that explains how the above formula was derived.

I am trying to get some feedback from the optical experts to see whether we have support to correct the formula in the current draft. All feedback is welcome.

Best Regards,

Ahmad El-Chayeb

Strategic Planner, Network and Datacenter Infrastructure

Keysight Technologies Canada Inc.

350 Terry Fox Drive, Suite 102

Kanata, ON

K2K 2W5

Office: +1 (613) 271-4008

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ahmad.el-chayeb@xxxxxxxxxxxx

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Attachment: RINxxOMA_IEEE_802p3dj.pdf
Description: RINxxOMA_IEEE_802p3dj.pdf