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AT&T making the most out of copper infrastructure with G.fast

February 26, 2018

While the long-term movement in Tier 1 carrier networks is toward more and more fiber, many service providers maintain copper coaxial cable networks, which can be upgraded to provide increasingly fast broadband speeds. Particularly in the case of a multiple-dwelling unit (MDU) like an apartment complex, running fiber to each unit is an expensive, time-consuming process. By leveraging existing coaxial cable, operators can quickly turn-up a better service. Case in point, AT&T is using G.fast to provide up to 500 Mbps speeds to an MDU in Boston, Mass.

G.fast (fast access to subscriber terminals) uses discrete multi-tone modulation, time division duplexing and other technologies to deliver speeds between 150 Mbps and 1 Gbps depending on the length of the copper run.

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