For cable companies who have the data service as part of the RFoG
wavelengths to provide coax at the CPE, how do they handle
collisions/timing on the upstream side ?
Does the ONT provide TDMA slots for the upstream wavelength to ensure
only one customer transmits RF at a time on the upstream ? Or
That's no different than what MSOs are deploying as well. Using things
like DSG the STB is using IP these days to communicate with application
servers, VoD, etc. Really the same as your VZW example, the STB uses
DOCSIS for OOB signalling instead of straight RF.
PON can use a RF video overlay or
I think all of the MSOs in the US have long term (15-20 year) plans to
also do FTTH. Advances in DOCSIS and coax technology seem to be outpacing
those available on the telco twisted-pair side, so it delays forklifting
the existing HFC plant. DOCSIS 3.1 requires some significant capital
investment
On 10/19/2013 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 cab
Also, RFoG keeps the same STBs as old-school FTTN, and for bean counters
it's pretty hard to justify changing a LOT of STBs to IPTV ones.
On Oct 19, 2013 4:17 PM, "Mark Radabaugh" wrote:
> I believe the difference is fairly negligible between RFoG and IPTV.
> RFoG allows the cable companies to le
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 10/1
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
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