Re: [STDS-802-3-400G] 答复: [STDS-802-3-400G] Electrical Ad-Hoc Straw Poll

[Richard Mellitz <richard.mellitz@xxxxxxxxx>]

The measurement is at TP2 with test equipment. The intent is the test equipment has very low noise. 

... Rich

Sent from my iPhone

On Apr 26, 2017, at 10:30 PM, Yang Zhiwei <yang.zhiwei2@xxxxxxxxxx> wrote:

Hi Andre,

I vote for option2,

Besides were mentioned by Ali, It seems that the  "eta_0" parameter is set to 0 in COM table of the presentation of mellitz_01b_042417_elect . I suggest the penalty from One-sided noise spectral density should be included though it will not take a significant effect for 10dB C2M channel empirically. 

Best Regards!

Yang Zhiwei

ZTE

原始邮件

发件人： ＜aszczepanek@xxxxxxxxx＞;

收件人： ＜STDS-802-3-400G@xxxxxxxxxxxxxxxxx＞;

日 期 ：2017年04月26日 19:40

主 题 ：[STDS-802-3-400G] Electrical Ad-Hoc Straw Poll

At today’s P802.3bs Electrical Ad-Hoc meeting I announced we would have a straw poll on options for the C2M Insertion Loss equation based on discussion following the  presentation of mellitz_01b_042417_elect.

 

·       Option 1: Do nothing

·       Option 2:

–       Change  “The supported insertion loss budget is characterized by Equation (120E–1) and illustrated in Figure 120E–4. “  to “The recommended insertion loss budget is characterized by Equation (120E–1) and illustrated in Figure 120E–4. “

–       Add “recommended” to the title of Figure 120E-4.

·       Option 3: Change the insertion loss equation to the equation given in Slide 14 “Option B” of mellitz_01b_042417_elect.

·       Option 4: Implement the changes in both options 2 & 3 above.

 

Please send me an email specifying your preferred option (select only one).

-         Don’t get hung up on exact values. This is a straw poll, nothing is definitive – we just want to establish a direction for the group.

 

Regards

                 Andre Szczepanek (Electrical Ad Hoc chair)