Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.




65 posts

Master Geek


Topic # 55423 4-Jan-2010 11:18
Send private message

I just changed my modem to Thomson ST536V6 and I was hoping I would be enjoying the ADSL2+ speed.

However I just found out that this ADSL2+ modem is actually running on ADSL2 rather than ADSL2+.

I have reset the modem but it still on ADSL2 Only..

any idea?
---------------------------------------------------
Link Information













Uptime:
0 days, 12:19:00





DSL Type:
G.992.3 annex A





Bandwidth (Up/Down) [kbps/kbps]:
938 / 4.814





Data Transferred (Sent/Received) [kB/kB]:
0,00 / 0,00





Output Power (Up/Down) [dBm]:
12,0 / 19,5





Line Attenuation (Up/Down) [dB]:
27,0 / 43,5





SN Margin (Up/Down) [dB]:
12,0 / 12,0





Vendor ID (Local/Remote):
TMMB / BDCM





Loss of Framing (Local/Remote):
0 / 0





Loss of Signal (Local/Remote):
0 / 0





Loss of Power (Local/Remote):
0 / 0





Loss of Link (Remote):
0





Error Seconds (Local/Remote):
0 / 0





FEC Errors (Up/Down):
0 / 2.146





CRC Errors (Up/Down):
0 / 2





HEC Errors (Up/Down):
6.497 / 2




---------------------------------------------

Create new topic
3535 posts

Uber Geek
+1 received by user: 125

Trusted

  Reply # 286823 4-Jan-2010 11:29
Send private message

From the figures posted above, in particular Downstream Line Attenuation of 43.5dB, it looks as though you are too far from the exchange to get the benefit of ADSL2 or ADSL2+. In fact, you are not even syncing at full ADSL1 speed.

Downstream Line Attenuation of 43.5dB implies that you are around 3.1km from the exchange, which is much too far to get the benefit of ADSL2/2+.

Sorry to tell you what you don't want to hear...

Apart from distance, your line appears to be otherwise OK.  S/N margin of 12dB means the following:

11dB-20dB. = Good with little or no synchronisation problems

So, apart from slower speed, you should have a reliable link, which is the most important thing really.

2363 posts

Uber Geek
+1 received by user: 12

Trusted
Spark

  Reply # 286826 4-Jan-2010 11:35
Send private message

To check when or if your area is due for an ADSL2+ cabinet visit:


http://www.telecomwholesale.co.nz/maps


nzbnw







 
 
 
 




65 posts

Master Geek


  Reply # 286830 4-Jan-2010 11:46
Send private message

thanks....

bad news!!
"
This address is scheduled to be connected to a roadside cabinet using faster broadband equipment (ADSL2+ technology) by Sep 2011. "

2011????

so that is why I am still on adsl2 not adsl2+?

I thought I would be still on ADSL2+ just same speed as ADSL

2363 posts

Uber Geek
+1 received by user: 12

Trusted
Spark

  Reply # 286831 4-Jan-2010 11:47
Send private message

You're getting ADSL1 speeds, not ADSL2 or ADSL2+.

nzbnw









65 posts

Master Geek


  Reply # 286833 4-Jan-2010 11:53
Send private message

grant_k: From the figures posted above, in particular Downstream Line Attenuation of 43.5dB, it looks as though you are too far from the exchange to get the benefit of ADSL2 or ADSL2+. In fact, you are not even syncing at full ADSL1 speed.

Downstream Line Attenuation of 43.5dB implies that you are around 3.1km from the exchange, which is much too far to get the benefit of ADSL2/2+.

Sorry to tell you what you don't want to hear...

Apart from distance, your line appears to be otherwise OK.  S/N margin of 12dB means the following:

11dB-20dB. = Good with little or no synchronisation problems

So, apart from slower speed, you should have a reliable link, which is the most important thing really.



Thanks Grant!!

yes..my adsl is always stable..even with the d-link 302G before and now with thomson st536v6.
(my friend give me st536v6 as a gift!!!Surprised..so no cost for that!!!)

I have been told before that even I upgraded my modem, the speed wont increase much as my home is too far away from the exchange.

but I am still hoping I am still on the ADSL2+ dsl type. now I am just worried about if I have configured my modem correctly.

so....

if telecom put a new cabinet around my house in 2011, my modem will regconise it automatically and operating on ADSL2+ ?

Tongue out



65 posts

Master Geek


  Reply # 286834 4-Jan-2010 11:54
Send private message

nzbnw: You're getting ADSL1 speeds, not ADSL2 or ADSL2+.

nzbnw


yes..I am getting ADSL1 speed...

just dont know why the modem automatically regonise it as ADSL2

not ADSL1 or ADSL2+


Yell

3535 posts

Uber Geek
+1 received by user: 125

Trusted

  Reply # 286889 4-Jan-2010 14:24
Send private message

liuyanbiao: if telecom put a new cabinet around my house in 2011, my modem will regconise it automatically and operating on ADSL2+ ?
Tongue out

Yes, you won't have to do anything.  Your modem will re-sync. at the increased speed once the cabinet has been installed.

As you have noticed, your modem is already operating in ADSL2 mode.  But your sync. speed is only equivalent to about 60% of the maximum ADSL1 speed because of the distance.

As soon as the distance is reduced (with installation of a roadside cabinet), your modem will automatically switch to ADSL2+ mode and take advantage of the increased speed available.

8020 posts

Uber Geek
+1 received by user: 386

Trusted
Subscriber

  Reply # 287054 4-Jan-2010 23:51
Send private message

Here's a slightly modified version of a graph from an Australian ISP Internode that explains the relationship between "expected" sync speed and line attenuation.

Basically more distance = higher line attenuation
Worse wiring = higher line attenuation

Higher line attenuation = lower sync speed


Create new topic



Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

$3.74 million for new electric vehicles in New Zealand
Posted 17-Jan-2018 11:27


Nova 2i: Value, not excitement from Huawei
Posted 17-Jan-2018 09:02


Less news in Facebook News Feed revamp
Posted 15-Jan-2018 13:15


Australian Government contract awarded to Datacom Connect
Posted 11-Jan-2018 08:37


Why New Zealand needs a chief technology officer
Posted 6-Jan-2018 13:59


Amazon release Silk Browser and Firefox for Fire TV
Posted 21-Dec-2017 13:42


New Chief Technology Officer role created
Posted 19-Dec-2017 22:18


All I want for Christmas is a new EV
Posted 19-Dec-2017 19:54


How clever is this: AI will create 2.3 million jobs by 2020
Posted 19-Dec-2017 19:52


NOW to deploy SD-WAN to regional councils
Posted 19-Dec-2017 19:46


Mobile market competition issues ComCom should watch
Posted 18-Dec-2017 10:52


New Zealand government to create digital advisory group
Posted 16-Dec-2017 08:47


Australia datum changes means whole country moving 1.8 metres north-east
Posted 16-Dec-2017 08:39


UAV Traffic Management Trial launching today in New Zealand
Posted 12-Dec-2017 16:06


UFB connections pass 460,000
Posted 11-Dec-2017 11:26



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.