[AusNOG] VDSL2, was Re: 4G advances

[Glen Greig]

Actually, most residential premises also have two pair lead-ins as well.
The capacity shortfall would be in the CAN. Increased demand for pairs in
the distribution cables, pillar CCPs, cabinet CCPs, mains cables and
exchange MDFs could lead to a very costly exercise.

On Fri, Oct 19, 2012 at 11:15 AM, Guy Ellis <guy at traverse.com.au> wrote:

>  Most businesses already have two copper pairs, i.e. phone + fax.
>
> You are right about residential customers though.
>
>  - Guy.
>
>
>
>
> On 19/10/2012 11:24 AM, Glen Greig wrote:
>
> On the question about RIM optics, you have to keep in mind that a RIM is
> POTS only, to get DSL, an AM35 was shoehorned into the cabinet and used the
> RIM's multiplexer for backhaul. To upgrade the backhaul, it's not as simple
> as changing optics you need a completely new backhaul. CMUXs have the same
> issue, they have DSL capabilities, but the backhaul is just tacked on to
> the side of the POTS capacity. It may all seem like poor planning in 2012,
> but back when these decisions were made, we were talking 20% takeup and
> 256Kbps plans.
>
>  Bonding ADSL2+ may be a good small solution, but as a major rollout,
> you'll run out of copper pairs fairly quickly as every DSL line starts to
> require two or more pairs.
>
>  Glen
>
> On Fri, Oct 19, 2012 at 9:32 AM, ausnog (321) <ausnog at 321.com.au> wrote:
>
>>
>> We use VDSL Services from a carrier called FirstPath in the Sydney CBD
>> areas, they have fibre fed DSLAM'S in buildings.
>>
>>
>>
>> -----Original Message-----
>> From: ausnog-bounces at lists.ausnog.net [mailto:
>> ausnog-bounces at lists.ausnog.net] On Behalf Of Mark Newton
>> Sent: Friday, 19 October 2012 10:17 AM
>> To: Guy Ellis
>> Cc: ausnog at lists.ausnog.net
>> Subject: Re: [AusNOG] VDSL2, was Re: 4G advances
>>
>> On Fri, Oct 19, 2012 at 10:12:43AM +1100, Guy Ellis wrote:
>>
>>  > I don't think we see a lot of VDSL2 in Australia because of the $  >
>> investment required.
>>  > Also for line lengths > 2km ADSL2+ is almost as good.
>>
>> And because ACIF approval came too late to be useful.
>>
>> And because the NBN has been hanging over the industry like a sword of
>> Damocles for the last five years, so nobody has been planning any major new
>> fixed network rollouts, thereby denying Australian consumers the benefits
>> of higher-speed technologies in the interim.
>>
>>   - mark
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>
>
>
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>
> --
> Guy Ellisguy at traverse.com.auwww.traverse.com.au
> T: +61 3 9386 4430 M: +61 419 398 234
>
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