Comcast Corp. is using the fiber-to-the-home (FTTH) capabilities of its "Metro Ethernet" platform to power a new residential broadband service with a maximum downstream speed of 305 Mbps and a potential 65 Mbps upstream, not DOCSIS 3.0.
In other words, Comcast is using an overlay approach, running a discrete new fiber from a transceiver node directly to a home, instead of using the cable modem standard and network.
The move suggests Comcast believes demand for the 305 Mbps service will be relatively limited. If high take rates were anticipated, Comcast would simply move to Docsis 3.0. At low penetration, the fiber direct overlay means the entire spectrum plan for each local network can operate without disruption, while still accommodating some growth of the 305 Mbps tier of service.
Thursday, September 27, 2012
Comcast Using FTTH Overlay to Deliver 305 Mbps Residential Service
Gary Kim has been a digital infra analyst and journalist for more than 30 years, covering the business impact of technology, pre- and post-internet. He sees a similar evolution coming with AI. General-purpose technologies do not come along very often, but when they do, they change life, economies and industries.
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