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Standard User joconnell
(experienced) Fri 21-Oct-11 22:55:00
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Billion 7800N and VDSL


[link to this post]
 
From this e-tailer I found the following info:

The BiPAC 7800(N) series is compliant with worldwide ADSL standards, and supports download rates of up to 12/24Mbps using ADSL2/2+, 8Mbps using ADSL and an upload rate of up to 1Mbps.

Now given the FTTC upload speeds are around 4-9Mbps depending on various factors, does the above mean that the 7800N would limit the actual upload speed to 1Mbps?
Moderator billford
(moderator) Fri 21-Oct-11 22:59:29
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Re: Billion 7800N and VDSL


[re: joconnell] [link to this post]
 
No. Those figures are for ADSL, FTTC uses VDSL.

I can assure you that the 7800N handles profiles of ~39Mbps down and 10Mbps up without even working up a sweat smile

~~~~~~~~~~~~
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The author of the above post is a thinkbroadband moderator but it does not constitute an official statement on behalf of thinkbroadband.
Standard User joconnell
(experienced) Fri 21-Oct-11 23:18:14
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Re: Billion 7800N and VDSL


[re: billford] [link to this post]
 
In reply to a post by billford:
No. Those figures are for ADSL, FTTC uses VDSL.

I can assure you that the 7800N handles profiles of ~39Mbps down and 10Mbps up without even working up a sweat smile
Thanks, that's a relief.

I've another question but not quite VDSL-related regarding the 7800N:
The integrated Annex M standard supports ADSL2/2+ for higher uploads by doubling the upload data rate
Now from BT's DSL checker site I read the following about my local exchange:
Our test also indicates that your line currently supports an estimated ADSL2+ broadband line speed of 6Mbps; typically the line speed would range between 3.5Mbps and 8.5Mbps. Our test also indicates that your line could support an estimated ADSL 2+ Annex-M broadband upstream line speed of 1Mbps and downstream line speed of 6Mbps; typically the downstream speed would range between 3.5Mbps and 8.5Mbps.

With my Thomson ADSL router, I get around 6Mbps d/l and 384Kbps u/l, but given the above info about Annex-M, could I achieve 1Mbps upload simply by switching to a 7800N?


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Standard User uno
(fountain of knowledge) Fri 21-Oct-11 23:22:20
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Re: Billion 7800N and VDSL


[re: joconnell] [link to this post]
 
You would need to ensure your line has an Annex M service, this will often cost extra and not all ISPs will offer it.

The 7800N does support Annex M though.

Matt

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Standard User joconnell
(experienced) Fri 21-Oct-11 23:25:39
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Re: Billion 7800N and VDSL


[re: uno] [link to this post]
 
In reply to a post by uno:
You would need to ensure your line has an Annex M service, this will often cost extra and not all ISPs will offer it.

The 7800N does support Annex M though.

Matt
Ah okay, so not something for nothing then wink
Standard User uno
(fountain of knowledge) Fri 21-Oct-11 23:26:18
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Re: Billion 7800N and VDSL


[re: joconnell] [link to this post]
 
Nope.. frown

Matt

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uno Broadband
t: 0808 221 8642
Official Maidenhead, Milton Keynes & Manchester Speedtest.net Host
Standard User RobertoS
(sensei) Fri 21-Oct-11 23:40:08
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Re: Billion 7800N and VDSL


[re: joconnell] [link to this post]
 
In reply to a post by joconnell:
In reply to a post by uno:
You would need to ensure your line has an Annex M service, this will often cost extra and not all ISPs will offer it.

The 7800N does support Annex M though.

Matt
Ah okay, so not something for nothing then wink
Even worse. At under 16Mbps download connection on Annex A, by switching to Annex M you would lose 2.5Mbps dowstream sync and gain very little upstream. Additionally, if you are above 7Mbps downstream sync on ADSL2+ you should already get more than 1Mbps upstream sync.

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