Originally Posted by werdnak
You will get a new wireless router, either a Westell or Actiontec, that bridges ethernet and the coax in your house: the set-top boxes get their schedule information and (I think) software updates over the Internet. I think you can set this router up as just a bridge and still use your own router as the actual Internet firewall/router, you should be able to find info on this at dslreports (http://www.dslreports.com/forum/vzfiber
I did some more research on this and it looks like besides a wireless router, they also provide a device called an ONT (Optical Network Terminal). This is the device that converts the fibre optic signal to data and video. The device has two interfaces, an ethernet interface and a MoCA (coax) interface. So what happens is that they install the ONT somewhere inside or outside your house, then run the fibre optic cable to the ONT. The default installation then connects the router to the ONT via its MoCA interface.
If you want to use your own router instead of the Verizon-provided router (typically an Actiontec router, it seems), then you don't actually have to go through the bridge mode nonsense (although you could). You just remove the Verizon router altogether and hook up your router via its WAN port to the ethernet interface on the ONT, with one big caveat. It seems that the ONT can only distribute data on one of the two interfaces (and by default, it distributes it over the MoCA interface). So you need to have the ONT reconfigured to distribute data over the ethernet interface (this can be done at installation time, or just by calling tech support and they can apparently "ping" the ONT somehow and tell it to switch interfaces). And in theory, that's all there is to it!
However, the complication arises when you want to add FiOS TV to the mix AND you want more than just video. If you want data services (ie. an STB) with your TV experience, such as the onscreen guide, on-demand, and pay-per-view, then things get tricky. You will either need to re-introduce the Verizon-provided router back into the mix (either by placing it behind your primary router or by placing it in bridge mode in front of your primary router) or you can get an ethernet-to-MoCA adapter such as the Motorola NIM-100. But I didn't look into it much further than that because I won't be requiring any STB's, since all my TV's are fed by either Tivo HD's or S3's.
Anyway, what I've decided to do is first upgrade my Verizon DSL service to FiOS, and then decide on TV a little bit later. I've got a technician coming next week to do the installation. I'm going to try to have him install the ONT (and accompanying battery-backup unit, or BBU) near my existing structured wiring centre inside the house. Then I'll ask him to reconfigure the ONT to distribute the data signal over the ethernet interface instead of the MoCA interface. I'll let him set up the Verizon-provided router and make sure it all works. But once the tech leaves, I'll remove the Verizon router and replace it with my existing router and if I've understood things correctly, it should just work.