re: Verizon Eyes Smaller ONTsTo be clear, the new smaller Calix NID uses the new smaller Corning box. It also does not include the battery pack, which takes up about as much room as the ONT. http://www.corningcablesystems...
The rest of what Mike says is quite correct. Or as architect Louis Sullivan said: "form ever follows function".
An SFU ONT can only be so small. Opti-fit connectors are physically large, and installers like POTS connections to have screw terminals. And of course about half these connection need to be inaccessible to the subscriber and they all need to be weather protected.
The tiny little TXP device is really trivial. It's indoors only and Ethernet only -- I think that requires four main chips (the GPON SOC, flash, DRAM, and gigabit PHY), plus optics and power supply.
re: Verizon Eyes Smaller ONTsIt has all got to do with the walled-garden strategy.
A PT2PT network, especially an ethernet PT2PT link, would be tantamount to an open system. Any new carrier could drop a PT2PT fiber and compete on selective routes. It would be a simple extension of a private network.
With PON, it becomes more difficult to drop your own link as you have to go through the carrier's OLT ... In PON you have to monitor the drops and the attenuation, in PT2PT this becomes a much simpler problem, requiring only sufficient optical power to give you the BER required.
The ILECs know how to protect their monopoly.
PON is a joke, unless it is done at an outrageously lower price than PT2PT. It is right now the only game in town, and that is why it is still a winner.
re: Verizon Eyes Smaller ONTsTo rj's question, Surewest and Utopia(UTAH) and several other deployments in the US are using/deploying home run to the CO and in combination with DLC (FTTN and then Homerun FTTH from the Node) - All of it Ethernet.
For others - From experience, Both PON and Homerun are needed in a deployment. Its about how you design and plan.
The concept of starting with splitters in the Handhole or on the pole is useless for future proofing. Splitter cabinet on the other hand are very useful. In a brownfield or Clec overbuild the cabinet are good to start with PON and as density or bw demand rq's convert to active.
Some areas may only have a handful of drops, but for short term if more are needed one fiber can be split until a cabinet is set or additional fiber is blown.
As it relates to fiber splicing, the last 288 cut we had to took almost equal time as the copper did. Now our splicer is a splicer not a telephone line tech (which yes the line tech not dealing with fiber as much, does take longer). But that is why splicers are splicer and line techs that only deal with fiber are almost as fast as a splicer. Plus the fiber is less likely to be froged to a different pair by a lazy tech as copper has been done.
All in all, If you havenGÇÖt been at the bottom of the trench and up at night on the road to a service call and havenGÇÖt had to dig a piece of fiber out of one fingers, please donGÇÖt listen to the marketer or sales reps, it is not as they say it is and if you think the accounts/lawyers know anything then watch out for the FCC.
http://www.corningcablesystems...
The rest of what Mike says is quite correct. Or as architect Louis Sullivan said: "form ever follows function".
An SFU ONT can only be so small. Opti-fit connectors are physically large, and installers like POTS connections to have screw terminals. And of course about half these connection need to be inaccessible to the subscriber and they all need to be weather protected.
The tiny little TXP device is really trivial. It's indoors only and Ethernet only -- I think that requires four main chips (the GPON SOC, flash, DRAM, and gigabit PHY), plus optics and power supply.