Chorus now offering VDSL - Can I discover why?

Forums › New Zealand Broadband › Chorus now offering VDSL - Can I discover why?

openmedia

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#205227 4-Nov-2016 11:44

So I've been on the border of VDSL for some time and left with ADSL2.

Recently both the chorus site and NZ Broadband map are now showing that VDSL is available at my address

Now I'm wondering if the change is due to additional cabinets, or due to changes in their VDSL settings.

Based on my ADSL modem output It doesn't look like my line has improved recently. I'm hoping my high Line Attenuation is due in part to cabling in the house rather than to my house.

Output Power (Up/Down) [dBm]: 12,5 / 0,0
Line Attenuation (Up/Down) [dB]: 10,5 / 20,5
SN Margin (Up/Down) [dB]: 13,0 / 12,5

Is there a tracker anywhere that would indicate why I'm now being offered VDSL?

Generally known online as OpenMedia, now working for Red Hat APAC as a Technology Evangelist and Portfolio Architect. Still playing with MythTV and digital media on the side.

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I fix stuff!
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#1663685 4-Nov-2016 11:49

Chorus changed the bandplan they used (bascially the frequencies they use on the copper).

This improved the speeds and the distance they can push VDSL.

Chorusnz

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Chorus

#1663700 4-Nov-2016 12:10

Chorus has spent several months upgrading all ISAM broadband switches from Bandplan 997 to 998.

There has been more development of Bandplan 998 over recent years as it is more widely deployed around the world. Deployment of Bandplan 998 means the cut-off for VDSL provisioning has jumped from 10dB to 15dB.

For a typical cabinet area the previous VDSL availability looked like:

It has taken several months to draw and check the 15dB shapefiles for thousands of cabinets, resulting in a wider coverage area that looks like:

Long story short, VDSL is now available to more customers on the copper network.

^GL

openmedia

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#1663743 4-Nov-2016 13:15

So I'm currently seeing 20dB Downstream and yet I'm in your map. I've hears reports of water getting into my line, but how much of an impact could my in house wiring have on this value?

Generally known online as OpenMedia, now working for Red Hat APAC as a Technology Evangelist and Portfolio Architect. Still playing with MythTV and digital media on the side.

yitz

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#1663751 4-Nov-2016 13:22

openmedia:
So I'm currently seeing 20dB Downstream and yet I'm in your map.?

The 10-15 dB attenuation cut-off is measured differently to the attenuation modems report for DSL sync but 20 dB as a guide is certainly the upper end near to the cut-off.

What kind of sync rates do you get on ADSL at the moment?

openmedia

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#1663828 4-Nov-2016 15:15

Current Sync Rates are - 1.208 / 13.047

Generally known online as OpenMedia, now working for Red Hat APAC as a Technology Evangelist and Portfolio Architect. Still playing with MythTV and digital media on the side.

quickymart

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#1663943 4-Nov-2016 19:10

I'd ask your ISP for a prequal and see what they say.

coffeebaron

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#1664044 4-Nov-2016 22:26

Do you have a master filter installed?

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Jase2985

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#1664192 5-Nov-2016 12:55

openmedia:

Current Sync Rates are - 1.208 / 13.047

im guessing your on UCLL if its 1.2 up?

care to post your modem stats? would like to check the Signal to Noise Ratio, cause if your are on wholesale gear with that speed i think you might be SOL for VDSL

@hio77

Beavis

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#1664258 5-Nov-2016 14:10

I am in the same boat. I was rung by Vodafone a few days ago, and asked if I would like a free upgrade to VDSL. Sounded good, but since I am 2.4 KM from exchange, 30 db loss and sync speed of 13.5-14.5 (depending on rebooting) down, 1.2 up (12db sig/noise) thought they were slightly mad. But didn't want to be a know all, said said bring it on. Will be interesting to see what happens. We are rural, with no fibre etc in the pipeline, so this is my best/only option.

P.S. I do have a master filter fitted, but not one suited to VDSL.

Jase2985

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#1664259 5-Nov-2016 14:12

i would be highly surprised if you did get an install, and i wouldn't be surprised if you speed was that of ADSL or worse

hio77

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#1664320 5-Nov-2016 16:47

I've been watching but stayed quiet on this one.

Given the tag I'll make comment however.

As chorus have already stated the distance has been extended. Often you may not get overly that much of an improvement but clearly a master filter is more than simply recommended.

I'll post changes in my case when I get home, but myself I went from a edge case to still an edge case. Many edgecases you have to consider the extra distances involved on your line which could put you way over.

At a quick guess, 20/2 or so would not be unexpected, likely higher. Possibly lower or nullvoid when it comes to installation

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openmedia

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#1664537 6-Nov-2016 13:13

coffeebaron: Do you have a master filter installed?

Yes but I need to check the generation to see if it is an ASDL or VDSL unit. I'll check the panel in the Garage as I want to confirm if the run from the splitter to the home office is a dedicate cable or off the standard phone lines.

Generally known online as OpenMedia, now working for Red Hat APAC as a Technology Evangelist and Portfolio Architect. Still playing with MythTV and digital media on the side.

openmedia

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#1664538 6-Nov-2016 13:15

Jase2985:

openmedia:

Current Sync Rates are - 1.208 / 13.047

im guessing your on UCLL if its 1.2 up?

care to post your modem stats? would like to check the Signal to Noise Ratio, cause if your are on wholesale gear with that speed i think you might be SOL for VDSL

@hio77

Full stats off the old Thompson ST536v6 Modem

SL Type:   G.992.5 annex A
Bandwidth (Up/Down) [kbps/kbps]:   1.208 / 13.047
Data Transferred (Sent/Received) [kB/kB]:   0,00 / 2,00
Output Power (Up/Down) [dBm]:   12,5 / 0,0
Line Attenuation (Up/Down) [dB]:   10,5 / 20,5
SN Margin (Up/Down) [dB]:   13,0 / 12,5
Vendor ID (Local/Remote):   TMMB / IKNS
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):   298 / 0
CRC Errors (Up/Down):   298 / 11.550
HEC Errors (Up/Down):   0 / 10.812

Generally known online as OpenMedia, now working for Red Hat APAC as a Technology Evangelist and Portfolio Architect. Still playing with MythTV and digital media on the side.

openmedia

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#1664589 6-Nov-2016 15:29

So the master filter is an older MM-3200S.

As expected the ADSL line is using the existing phone wiring so will be subject to interference.

Generally known online as OpenMedia, now working for Red Hat APAC as a Technology Evangelist and Portfolio Architect. Still playing with MythTV and digital media on the side.

Beavis

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#1664598 6-Nov-2016 15:54

Exactly the same filter I have...

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