Re: [8023-POEP] Fwd: Open_for_ballot:_Project_Number_3-0324-B-1, proposed_cre...
Chris-
I can live with your suggestion.
I agree that it might be easier for TIA to swallow than my wording.
Thanks
Geoff
At 03:22 PM 3/10/2009 , CDimi80749@xxxxxxx wrote:
I agree that
P802.3at should send a liaison letter to TIA regarding TSB-184
regarding the technical changes in the default ballot to section 5
cabling selection (copied below).
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Technical change in default ballot:
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Changed from: Remote powering should be implemented using 4-pair balanced
cabling.
To: Remote powering should be implemented using category 5e
or
better 4-pair balanced twisted-pair cabling as specified in
ANSI/TIA-568-
C.2
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The new language can be easily interpreted as a conflict between
TIA-184 and 802.3at as it states "how remote powering should be
implemented'. The previous TSB-184 text also included suggestions on
remote powering implementation but was less objectionable as it aligned
with 802.3at.
Recommendation to include in liaison:
TSB-184 states "...It is intended to guide new installations
and renovations."; this statement is buried in the introduction.
Therefore, I'd advise the following change to TSB-184 be requested in the
liaison letter to avoid ambiguity and potential conflicts between 802.3at
and TSB-184.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Change from: Remote powering should be implemented using category 5e
or
better 4-pair balanced twisted-pair cabling as specified in
ANSI/TIA-568-
C.2
To: When planning new installations delivering SELV power, Category 5e
or
better 4-pair balanced twisted-pair cabling as specified in
ANSI/TIA-568-
C.2 is recommended.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Regards,
Chris DiMinico
MC Communications
cdiminico@xxxxxxxx