Does telecom change protocol to ADSL2+ Annex A which is different than ADSL2+/ADSL2+ Annex M?

Forums › Spark New Zealand › Does telecom change protocol to ADSL2+ Annex A which is different than ADSL2+/ADSL2+ Annex M?

yasto

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Topic # 62429 7-Jun-2010 00:22

Hi, Guys

Anyone met the problem about using WAG200G can not connect to telecom bigtime?

I had 3 modems, 2 WAG200G 1 THOMSON ST536v6(from telecom)

one WAG200G to Orcon
another one to Telecom
ST536 was backup

I found DSL signal which was easily down frequently since middle of May,

Until this Friday the connection was totally dead with no single when I used WAG200G.

So I swap WAG200G to ST536v6 and try to figure out what is going on.

I found a quite interesting information on ST536v6

the DSL connection from ST536 connected by a protocal called G.992.5 annex A (ADSL2+ annex A)

then I tried to prove my both WAG200G work well by swapping each WAG200G on Orcon

Both WAG200G connection are fine and excellent work with Orcon

but now they both don't work with Telecom(was worked)

After 2 days disconnection, I have to use ST536v6 on my Telecom bigtime to make the connection up

By the way, I go to WAG200G Management UI saw it

only support ADSL2+ and ADSL2+ annex M with no ADSL2+ "annex A"

does anyone can make sure ADSL2+ annex A is it a new protocal and different than other ADSL2+ protocal?

I try to find some information from wiki

http://en.wikipedia.org/wiki/ITU_G.992.5
only find out ADSL2+ and ADSL2+ annex M
with no any information about ADSL2+ annex A

If anybody meets the same problem with me, hope we can figure out what is going on

Thanks anyway

Ragnor

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Reply # 338935 7-Jun-2010 00:53

Telecom hasn't changed, ADSL2+ = Annex A

Annex M is an modified type of ADSL2+ with higher upload, don't think any ISP's are offering Annex M in NZ on residential connections.

Questions:

So you have two lines one with ADSL from Orcon and one with ADSL from Telecom?

Are you on Orcon+ or non + plan?

Are you connected to the exchange or a cabinet?
(check here: http://www.telecomwholesale.co.nz/maps)

I've heard of the WAG200G's having problems with the alcatel lucent ISAM's in cabinets. Might want to make sure they are running the most up to date firmware.

yasto

6 posts

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Reply # 338940 7-Jun-2010 02:01

If Annex A =ADSL2+ why my two WAG200G connect to Telecom bigtime becomes so unstable??

I couldn't make sense, the WAG200G connect to Orcon works well

but they can't work with Telecom bigtime after this friday (before it works but unstable, it works well in May)

I live in Hamilton, I have been to the ADSL2+ Tool of Telecom, it said I'm in ADSL2+ exchange area

nate

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Reply # 338941 7-Jun-2010 02:02

I've hidden your post in the LAN forum, please don't double post.

cyril7

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Reply # 339002 7-Jun-2010 12:13

Annex A is the most common ADSL2 protocol on the planet, Annex M is not supported by Telecom, although I understand that the gear does support it. Annex B is same as Annex A except on ISDN lines.

I strongly suggest you look elsewhere as to the issues, as its not standard related. Could you post your line stats from the modem.

As Ragnor says the Wag200 is not know for working well with Telecoms Alcatel ISAMs, but getting the lattest firmware might mitigate any issues. Some of the issues surround the modem and ISAM port not tracking noise conditions over a period of time, eventually causing them to loose lock and have to restart, if the line noise conditions are healthy then the problem should not occur, its only if things are under duress.

Cyril

yasto

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Reply # 340379 10-Jun-2010 19:29

finally I called Telecom

they send the technician to found outside exchange to my home has faulty

so all things are going to fine

thanks a lot

1080p

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Reply # 342721 17-Jun-2010 16:30

Do you think any ISPs would consider ADSL2+ Annex M? Seems like an increased upstream sync would make very many people happy.

Would there need to be a hardware change in the exchange/cabinet for this upgrade?

k1wi

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Reply # 342725 17-Jun-2010 16:46

Has anyone tried forcing their router to annex M?

Just as a proof of concept.

Ragnor

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Reply # 342727 17-Jun-2010 16:49

I doubt the ISP's have any interest in ADSL M, VDSL is coming soon (VDSL2).

Telecom, Orcon, Vodafone have been trialling VDSL for over a year on their gear in the exchanges (and cabinets in Telecom's case).

I presume Telstra and Slingshot/CallPlus have been trialling also on their gear.

You might even see VDSL be available to the public this year sometime, depends how well the tech trial and soft launch go.

cyril7

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Reply # 342728 17-Jun-2010 16:50

Hi, as I understand it the current ISAM 7330 cards support (ADSL, ADSL2, ADSL2+) with either annex A or B, bonding and READSL2 and with latter edition cards VDSL2 also, but according to the 7330 spec sheet there is no mention of annex M.

I have in the past tried forcing annex M out of curiosity and it did not work change the outcome.

Cyril

eXDee

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Reply # 342733 17-Jun-2010 16:58

cyril7: Hi, as I understand it the current ISAM 7330 cards support (ADSL, ADSL2, ADSL2+) with either annex A or B, bonding and READSL2 and with latter edition cards VDSL2 also, but according to the 7330 spec sheet there is no mention of annex M.

I have in the past tried forcing annex M out of curiosity and it did not work change the outcome.

Cyril

If you are connected to a cabinet installed in October 2008, whats the chance of it being able to be VDSL compatible after an update?

cyril7

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Reply # 342743 17-Jun-2010 17:15

All 7330ISAM frames can accept the newer VDSL2 capable cards, as such all ADSL2/2+ capable cabinets (ie those with ISAMs as opposed to older ASAMs which are only ADSL capable) can support VDSL2 once fitted with some or all of the newer release NVLT-C cards.

Cyril