[166355] in North American Network Operators' Group
Re: FTTH for cable companies
daemon@ATHENA.MIT.EDU (Mark Radabaugh)
Sat Oct 19 09:14:52 2013
Date: Sat, 19 Oct 2013 09:14:29 -0400
From: Mark Radabaugh <mark@amplex.net>
To: nanog@nanog.org
In-Reply-To: <52626083.5090709@vaxination.ca>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
I believe the difference is fairly negligible between RFoG and IPTV.
RFoG allows the cable companies to leverage the existing RF head end
while FTTH requires a IPTV head end. IPTV is less familiar to most
cable operators and requires new investment in facilities and skills.
Mark
On 10/19/13 6:35 AM, Jean-Francois Mezei wrote:
> I need a reality check...
>
> For telcos, going from barely twisted copper pair to FTTH presents huge
> incremental improvement. FTTN is basically a stop gap medium term
> solution that is more pleasing to some beancounters.
>
> However, for a cable company, is there an advantage to deploy FTTH/GPON
> to bring light originally destined to the neighbourhood node all the way
> to the home and do away with coax ?
>
> From what I have read, cablecos limit FTTH deployments to greenfields.
>
> Do they save much by replaciung the "node" with a simple optical
> splitter which no longer limits how much upstream bandwidth is
> retransmitted back to head end ?
>
> Will there be a point in the next 10 years where cable companies might
> start to upgrade brownfields from coax to FTTH as some telcos have done ?
>
> While in Canada, FTTH deployment by telcos has been accompanied with
> IPTV deployments on the data path (single wavelength), I hear that
> Verizon has used twin wavelengths, on for GPON data, and one for RFoG
> for TV signals. Would it be fair to state that FIOS is basically
> identical to FTTH deployments by cable companies ?
>
> Do twin wavelength systems as deployed by Verizon end up costing far
> more ? Or is the price difference mininal ?
>
> Any information/insight appreciated.
>
--
Mark Radabaugh
Amplex
mark@amplex.net 419.837.5015
