N3OGH
Bear patrol must be working like a charm
Premium
join:2003-11-11
Philly burbs
 ·Verizon FIOS
 ·Verizon Online DSL
| reply to Vchat20
Re: If Verizon can provide a shareable DVR, why not Comcast ?
said by Vchat20  :said by N3OGH :I didn't say an ONT was necessary, I don't think you understand the issue well. The coax used inside a Comcast subscriber's home is directly connected to Comcast's network. The coax in a Verizon subscriber's home is not. The idea that the ONT is there, is MOOT. Comcast will have to implement some way of isoloating the set top boxes in the subscriber's house from the rest of their network in order to make this work for them. Otherwise, too much bandwidth will be eaten up by DVR boxes talking to each other. What are you talking about? First of all, the RF signal passing through the ONT is still 2-way just like traditional HFC cable systems. Not if the ONT doesn't pass the signals upstream, Einstein.
The ONT isolates the coax inside the house from the rest of the network, so instead of being part of the entire cable TV plant, per se (like the cable that's in a Comcast subscriber's house) the coax inside a Verizon subscriber's house is using RF via the coax all ready installed in the house.
The bottom line is, in a system where you can watch DVR stored content on another digital box in the house, it has to transmit RF energy to the other box.
In a pure coax fed cable environment, that transmission has to be filtered at the demarcation point so it doesn't pollute the outside system.
So, either Comcast (or any provider for that matter) has to install a filter that traps the frequency they're using to transmit the DVR content to another box.
Or, if you have a system that uses fiber to the demarc point, you simply program the NID, whatever that may be, in Verizon's case an ONT to IGNORE IT.
Either way, the RF energy the DVR box is using to transmit content to another box must be stopped at the demarc point...
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