Hi Colin,
You ask about the potential capacity limitations of a PON. As you can see
at, for example
http://www.sopto.com/blog/the-advantages-and-disadvantages-of-pon-technology/
"...
they have less range than an active optical network, meaning subscribers
must be geographically closer to the central source of the data. PON also
make it difficult to isolate a failure when they occur. On the other hand,
because the bandwidth in a PON is not dedicated to individual subscribers,
data transmission speed may slow down during peak usage times in an effect
known as latency. Latency quickly degrades services such as audio and
video, which need a smooth rate to maintain quality."
So a lot will depend on the number of houses that Vumatel gets to share
each link (PONs can support up to 32 pre fibre pair). You should ask them!
I hear that they will be having a street stall to advertise their project
in Observatory this weekend. If they use the GPON ("Gigabit Passive Optical
Network") standard, the impact on each user should be lessened to the point
where it should not affect data streaming.
Hope this helps.
Mark
m...@neville.za.net
20 Nuttall Road, Observatory
map.what3words.com/casket.triggered.largest
083 259 1723
021 447 3107
On 28 June 2017 at 10:49, Colin Theobald <colintheob...@gmail.com> wrote:
> Thank you so much for your detailed responses Mark. Hugely appreciated.
>
> The obvious advantage of overhead fibre is that it will be much faster
> (and cheaper) to implement than trenching. However, the capacity limitation
> of the PON network you mention is concerning. But I suppose as long as they
> can offer up to 100Mb speeds then 99.9% of users will be satisfied.
>
> While I would prefer a provider like Octotel to put in a full fibre pair
> to every house I doubt that would happen within the next year or two. I see
> University/Walmer Estate is on their 'planned' schedule, but what I've
> learned after watching all the fibre providers coverage maps over the years
> is that 'planned' takes ages, and we're not even on 'planned'.
>
> Are you sceptical of their being able to offer 100Mb on this PON network?
>
>
>
> I see a number of users mention LTE-A as a solution but the current range
> of products on this technology have data limits that are too far too
> restrictive. My household often hits 200GB in a month and this would be
> very expensive on LTE-A. That is before we start talking about how the
> latency problems on LTE limits what we are able to with it. So I’m afraid
> it’s either ADSL or Fibre for us.
>
>
>
> We’re now on 28% of the target reached! Let’s try keep the momentum going!
>
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