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What can I expect from 21CN?

zebop917
Newbie
Posts: 4
Registered: 08-02-2014

What can I expect from 21CN?

Although I live on the edge of a decent-sized city - Exeter - my phone line comes through a satellite exchange. This has few residential customers and so has never had any LLU presences to bring down prices. So, it's always been "garden variety" up-to-8Mb/sec ADSL. Since moving to PlusNet, my actual speed has always been around 5.2-5.6Mb/sec. Well, it's OK to stream HD video but everywhere else on the main exchange does much better. However, I now see from SamKnows that the exchange has now been upgraded to 21CN WBC status. Whoopee - but what does that actually mean? Am I likely to see any benfits from this?
9 REPLIES
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Registered: 15-06-2007

Re: What can I expect from 21CN?

Tongueost the stats from your router as described here http://community.plus.net/forum/index.php/topic,96155.0.html
zebop917
Newbie
Posts: 4
Registered: 08-02-2014

Re: What can I expect from 21CN?

ADSL Link             Downstream Upstream
Connection Speed     6752 kbps         448 kbps
Line Attenuation     46.0 db         24.5 db
Noise Margin             6.5 db         26.0 db
Current line profile from the BT site is 5500 kbps.
Phil
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Re: What can I expect from 21CN?

Probably an increase of 1,000kbps or more
http://www.kitz.co.uk/adsl/max_speed_calc.php
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Re: What can I expect from 21CN?

... and probably a doubling of upload speed.
jelv (a.k.a Spoon Whittler)
   Why I have left Plusnet (warning: long post!)   
Broadband: Andrews & Arnold Home::1 (FTTC 80/20)
Line rental: Pulse 8 Home Line Rental (£13/month)
Mobile: iD mobile (£4/month)
Plusnet Help Team
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Re: What can I expect from 21CN?

Hi there.
We can place the order to move you across now which would complete in 5 to 7 working days.
If your interested just reply to this message
If this post resolved your issue please click the 'This fixed my problem' button
 Matthew Wheeler
 Plusnet Help Team
Superuser
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Re: What can I expect from 21CN?

Quote from: Oldjim
Probably an increase of 1,000kbps or more
http://www.kitz.co.uk/adsl/max_speed_calc.php

Jim,
I'd be cautious with expectation setting.  The page you referred to states...
Quote
It is also worth pointing out that attenuation is calculated differently for adsl and adsl2+, and its not unusual to see an increase of 3-4 db when moving from adsl1 to adsl2+.

This page suggests 6818 @46dB (ADSL1 attenuation).  If we take the above statement at face value, then @49dB gives 5568.  Experience suggests that good lines can though deliver significantly better than Kitz advises.
Sight of the op's error counts would be useful.
Community Veteran
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Re: What can I expect from 21CN?

I was going more by experience and this
Superuser
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Re: What can I expect from 21CN?

Jim,
I understand your call, but the OP's ADSL 1 line is in that zone where the difference could be minimal, which is why I also said if the line is good, it might achieve better than the Kitz figures.  This is I suggest right in the middle of such it and see space!  Shocked
Kevin
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Re: What can I expect from 21CN?

I thought the kitz max speed calc works on input of ADSL1 attenuation, so you don't add to the attenuation if you want an ADSL2+ estimate.