[802.3_SPEP2P] 答复: dg meeting today October 29
Thank you George for clarification. PAM2 for training has the same symbol rate of 80MBaud as 8B6T PAM3 in data mode.
-----邮件原件-----
发件人: George Zimmerman <george@xxxxxxxxxxxxxxxxxxxx>
发送时间: 2024年10月30日 1:46
收件人: STDS-802-3-SPEP2P@xxxxxxxxxxxxxxxxx
主题: Re: [802.3_SPEP2P] dg meeting today October 29
Dieter - I believe Tingting was referring to PAM-2 at the same line signalling rate (baud) as the 100 Mbps PAM-3 signal would be (i.e., 80 MBaud). This way the attenuation is the same as it will be for run-time PAM-3... (otherwise I don't see how the training would work usefully...)
George Zimmerman, Ph.D.
President & Principal
CME Consulting, Inc.
Experts in Advanced PHYsical Communications george@xxxxxxxxxxxxxxxxxxxx
310-920-3860
-----Original Message-----
From: stds-802-3-spep2p@xxxxxxxxxxxxxxxxx <stds-802-3-spep2p@xxxxxxxxxxxxxxxxx> On Behalf Of Dieter Schicketanz
Sent: Tuesday, October 29, 2024 10:41 AM
To: STDS-802-3-SPEP2P@xxxxxxxxxxxxxxxxx
Subject: dg meeting today October 29
Regarding last presentation today (Tingting Zhang), it is my understanding that of coarse PAM2 needs 4 dB less S/N but at 500m the signal attenuation is much higher than for PAM3. Is that considered ?
Because of time constraints I withdrew this question today.
--
Best regards
Dieter Schicketanz
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