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Re: [802.3_50G] Back Plane Loss Discussion

For this market, it is not only power but lower cost volume manufacturability.

 

I really need 60dB if I use the “fit in the shoe box” argument. J

 

… Rich

 

From: Joel Goergen (jgoergen) [mailto:jgoergen@xxxxxxxxx]
Sent: Friday, January 15, 2016 11:10 AM
To: STDS-802-3-50G@xxxxxxxxxxxxxxxxx
Subject: [802.3_50G] Back Plane Loss Discussion

 

All

 

My apologies for not starting this discussion sooner.

 

I understand the there is a lot of push-back for a 50G interface 32dB@14Ghz.

I would guess the reason is power related.

 

My argument is that if the limit is 25dB or 28dB, a significant amount of retimers will be required. And therefore the power per link will be almost double anyway.  So power isn’t an argument.

 

However, I would conceded to a lower loss level if we all agreed to completely define the retimer block and recognize it as a valid block function.

 

Take care

Joel