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I would imagine they would be replaced with passive splitters as per
standard PON design, for in the pits. <br>
<br>
I believe most road-side FTTP cabinets for NBNCo are unpowered, and
are simply a passive splitter (or have the potential to be), so if
we were to go FTTdp to FTTP, just replace copper with fiber and have
the passive splitter in the pit, backhauled to the OLT.<br>
<br>
<div class="moz-cite-prefix">On 04/02/15 11:47, Mark Delany wrote:<br>
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cite="mid:20150204004724.28251.qmail@f5-external.bushwire.net"
type="cite">
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<pre wrap="">I found it particularly interesting that power is or can be supplied
to the FTTdp node by the CPEs, which means the FTTdp equipment can
possibly be installed inside the footpath pits themselves without
needing power infrastructure
</pre>
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<pre wrap="">
Is there an upgrade path to this approach or is FTTdp the end game?
* I'm not quite sure what you're asking. Are you asking about an upgrade path to FTTdp, or an upgrade path from FTTdp to FTTP?
</pre>
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<pre wrap="">
>From FTTdp to FTTP. Say, 10 years after we're all spun up with FTTdp.
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<pre wrap="">I don't really understand how there could be an upgrade path as
replacing all the downstream copper with fibre leaves you with the
problem of powering the pit
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<pre wrap="">
Yup. That was rather the point of my post. How that might be solved as
part of moving to fibre all the way.
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<pre wrap="">* That's the point of my comment - the power for the 'pit'/FTTdp equipment in the pit comes from the attached subscribers' CPE (and therefore the subscribers' mains supply.) The FTTdp equipment in the pit doesn't need an independent power source. In other words, if there are no active CPE attached to the FTTdp equipment in the pit, it isn't operating.
- unless the vestigial copper stays forever
as a power source. Alternatively, custom pit-to-premise cabling could
include POE-like stranding.
* There is no custom pit-to-premise cabling, the existing copper leadins are used
</pre>
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<pre wrap="">
Yes I know. But in a post-FTTdp world when you spin up new fibre to
the premise you might include something that solves the power problem.
</pre>
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<pre wrap="">* I think the emerging trend could be described as 'wireless cloud first' for typical end users. I consequently wonder whether many 100s of Megabits to the home is really going to be necessary.
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<pre wrap="">
That's not what the bandwidth numbers say.
Mark.
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