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[802.3_4PPOE] Comment 54 in D3.4



Hi Lennart and all,

Regarding your comment 54:

I believe that we cant change it as you suggested:

 

My arguments are:

Yair:

1. It is part of Objective (implicit).

3. We need to meet local and national EMI codes for PSEs and PDs with their cables when they are powered or not.

4. The value of this text is that the common mode ripple and noise specified in Table 145-16 and Table 145-29 are not sufficient to meet EMI and much lower values are required.

5. It is specified for all IEEE systems and subsystems.

6. If the text is not clear we can clarify it but not delete it.

 

I also talked with Geoff Thompson about this comment and I am attaching his response:

 

The text that Lennart wants to fiddle with is as old as the hills, e.g. see:

14.7.3 Environment

14.7.3.1 Electromagnetic emission

The twisted-pair link shall comply with applicable local and national codes for the limitation of electromagnetic interference. 

so any change to that text will run up against the rest of 802.3

since it is precisely the same requirement as we have for twisted pair MAUs in general.

 

Yair

 

Darshan Yair

Chief R&D Engineer

Analog Mixed Signal Group

Microsemi Corporation

 

1 Hanagar St., P.O. Box 7220
Neve Ne'eman Industrial Zone
Hod Hasharon 45421, Israel
Tel:  +972-9-775-5100, EXT 210.

Cell: +972-54-4893019
Fax: +972-9-775-5111

 

E-mail: <mailto:ydarshan@xxxxxxxxxxxxx>.  

 

 


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