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RE: [EFM] RE: [EFM-Copper] [Fwd: Existing Loop Lengths]


I fully agree, as a DSL service provider, with Patrick's findings in hitting

market requirements AND EFM definitions.  I find the data presented
real close to what we find, at Oregon Trail Internet, over 4 ILECs in the
Pacific Northwest.  Our average loop, for DSL customers, is approximately
Reach of 21Kft would hit nearly 100% of our current market.  But .. our
is limited by current reach.   Needless to day, if  I can even get more
I'll gladly sell it (21Kft and beyond).


Frank Miller
CIO / Oregon Trail Internet

> -----Original Message-----
> From: Stanley, Patrick [mailto:pstanley@xxxxxxxxxxx] 
> Sent: Monday, October 29, 2001 9:41 AM
> To: Stanley, Patrick; 'Troy Manary'; Copper;
> Subject: [EFM] RE: [EFM-Copper] [Fwd: Existing Loop Lengths]
> Upon further review, I found that I made a mistake in 
> entering the length of
> one of the segments for CSA 1 in my simulation. Using 10 
> self-disturbers,
> with the loop length corrected, my simulation of CSA 1 (7.7kft working
> length, and 1 bridged tap) gives 8.4Mbs for Echo Cancelled 
> ADSL, compared to
> 8.6Mbps on 8kft of 26AWG wire. CSA 4, which has a working 
> length of 7.55kft,
> and contains 2 bridged taps, gives 8.0Mbps. My apologies to 
> the group for
> sending out the incorrect data.
> Nevertheless, the TIA draft standard that I have referenced in earlier
> e-mails is a valuable resource for linking performance 
> objectives to market
> coverage, and I believe that EFM over copper should strive to 
> address 99% of
> the market (21kft, 24AWG reach).
> Best Regards,
> Patrick