| Dear all,
thinking more in this topic, I think the most accurate solution for IEEE Std 802.3 would be to have only as normative reference the latest edition 60793-1-41:2010. The reason is that the overfilled launch bandwidth is consistent in both editions, so the reference in clause 52 could be updated to point to 2010 edition instead of 2001. Just my personal opinion. I suggest it should be considered in detail by the experts that were involved in the development of clause 52.
Best regards, 802.3bv Editor / Comment Editor
Dear Bob-san, Rubén-san and all,
I agree with Rubén-san. Moreover, IEC 60793-1-41:2001 (ed.1) specifies wavelength of the light source as 800 to 900 nm or 1200 to 1350 nm therefore GEPOF shall refer to 60793-1-41:2010 (the latest edition). I wonder why the footnote to Table 52‐25 (Section 4 , page 610, line 28) refers to the first edition of the IEC specification. I think that it is better to delete the publication year from IEC references; it means that we always refer to the latest edition.
Best regards,
Satoshi
Dear all,
I have reviewed this change made in the merge of 802.3bv into Std 802.3. In my opinion, the change is correct and I expected it.
This topic was addressed during 802.3bv TF meeting in Macau, last year, if I remember well. The clause 115 does a reference to the IEC 60793-1-41:2010 norm for the measurement methodology of the fiber optic channel transfer function. However, none of the launching conditions described in the IEC 60793-1-41:2010 norm are used for transfer function measurement. IEEE Std 802.3bv specifies the launching condition (MPD) based on EAF per IEC 61300-3-53.
On the other hand, the clause 52 provides a reference to the same norm IEC 60793-1-41 for the specification of the overfilled launch bandwidth.
The 802.3bv TF reviewed both IEC 60793-1-41:2001 and IEC 60793-1-41:2010 in Macau meeting, and we concluded that the specification of the measurement method for transfer function is much more clear and exact in the 2010 edition. This was the reason why the TF included in subclause 1.3 the normative reference to IEC 60793-1-41:2010 despite the 2001 edition was already included in Std 802.3.
Regards, 802.3bv Editor / Comment Editor
Colleagues:
I have been reviewing the merge of all approved amendments into Std 802.3. There is one note about this new draft for P802.3 revision that I need help with. The following note accompanied describes the issue.
As IEC 60793‐1‐41:2001 is already present in 1.3, the addition of IEC 60793‐1‐41:2010 would make the reference
ambiguous. "IEC 60793‐1‐41" changed to "IEC 60793‐1‐41:2001" in footnote d to Table 52‐25 (Section 4 , page 610, line
28). "IEC 60793‐1‐41" changed to "IEC 60793‐1‐41:2010" in 115.7.5 (Section 7, page 884, line 10) and in 115.14.11
(Section 7, page 908, line 33).
Do I remember correctly that this will be a problem? (Are the specifications in 2010 different than those in 2001?)
—Bob
**************************************************** Satoshi TAKAHASHI POF Promotion 1-10-28-501 Kugenuma-Fujigaya, Fujisawa Phone: +81-80-5026-9433 Fax.: +81-466-50-5884 ****************************************************
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