reply to elefante72
said by elefante72:How is PON less flexible? A properly deployed PON infrastructure will be virtually maintenance free and can have any number of services deployed on top of it. All that has to happen is having another "color" (wavelength) muxed onto the network at whatever aggregation point the operator is using. Verizon and Frontier already run three discrete services over their networks; adding a fourth (what kind of service?) would be easy.
Cable is already fibre to the node. It's only the "last mile" where it gets converted to coax that it is in question.
Comcast by waiting has made a much better decision to go w/ ethernet over fibre versus the PON model which costs way more and is less flexible (FiOS). I said this a few days back.
Install is more difficult than plugging into current copper infrastructure but that's because the copper has been in the ground for years. Once a majority of the homes in an area have a fiber drop and installed ONT, ordering new service becomes a matter of plugging in the equipment the service provider ships out, just like coax or copper today.
Verizon and Frontier PON currently use 3 wavelengths, 1310nm (upload voice and data) 1490nm (download voice and data) and 1550nm (downstream video) as opposed to services, they are different wavelengths of light between the OLT and the ONT.
PON allows 1 fiber to be ran to a typical location where you would find a copper cross connect box and split that signal depending on the total length of the fiber anywhere between 8-ways to 64 - ways. This is Much cheaper to deploy (compared to active ethernet) not to mention the network is passive so the only electronics that require maintenance are the ONT and the OLT.
Initial investment for a new home will almost always be more expensive for any type of fiber since copper is easier to work with, faster to install, not to mention the electronics involved with Fiber are move expensive.
I am confident that many municipalities will have FTTP/FTTH products available within the next 10-15 years. In the grand scheme of life, FTTH is still in its infancy, copper has had well over 100 years to be perfected, its just a matter of time before fiber is perfected enough to where companies will actually have a decent ROI within a reasonable amount of time.