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21CN Tones used

VileReynard
Hero
Posts: 12,616
Thanks: 582
Fixes: 20
Registered: ‎01-09-2007

21CN Tones used

My first question is:-
How many 4KHz tones are used by 21CN ADSL2+?
My router (A Plusnet Dlink) lists onlytones in the range 0-255 tones as used
I think that 512 tones should be used for ADSL2+...
Am I right?

"In The Beginning Was The Word, And The Word Was Aardvark."

2 REPLIES 2
MauriceC
Resting Legend
Posts: 4,085
Thanks: 929
Fixes: 17
Registered: ‎10-04-2007

Re: 21CN Tones used

See http://www.aware.com/dsl/whitepapers/WP_READSL.pdf
and
http://en.wikipedia.org/wiki/ADSL2
Does your model of Router (and its Firmware release?) claim to support ADSL2+
Maurice

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VileReynard
Hero
Posts: 12,616
Thanks: 582
Fixes: 20
Registered: ‎01-09-2007

Re: 21CN Tones used

I'm afraid I didn't understand much of the first link Smiley
However, I spotted that my router had a setting for the connection of  "Best".
It said I wasn't supposed to change it - but I did anyway (to ADSL2/ADSL2+).
I've now got 512 tones - with the second 256 all zeroes Grin

"In The Beginning Was The Word, And The Word Was Aardvark."