[AusNOG] 700Mbps over copper pair...over 400 metres

[Julien Goodwin]

On 23/09/10 14:14, Matthew Moyle-Croft wrote:
> 
> On 23/09/2010, at 1:22 PM, Julien Goodwin wrote:
>>>
>>> The "average" attenuation is sufficient that VDSL2 from the exchange,
>>> along with issues around interference mean it's not very practical.
>>>  VDSL2 is a "cabinet" technology - ie.  FTTN style of thing where you
>>> place the active equipment within 1km or so of a house.
>> Giving those of you with actual experience in getting this stuff
>> approved no real incentive to do so.
> 
> I take a bit of offence at that.   We tried very hard.  One of my
> engineers was on the Comms Alliance working group and put in a great
> deal of time with this.   There were many attempts at compromise to get
> it approved.  In the end, we could have had it approved (ie. unanimous
> vote) but in a way that would have meant a lot of forms of access would
> have disappeared (ie. no SHDSL, no AnnexM and poorer ADSL1/2/2+ from the
> exchange).  

OK point taken.

I wasn't aware of those details. I was assuming you were referring to
the distance limits being such that in most exchanges it wouldn't be
economically feasible.