spacer 2Telebyte Gfast Testing Guide 320

Gfast map July 2017

Dark blue: Firm commitments from incumbent: BT (10M), Belgacom, Australian NBN, Swisscom,  Austria, Bezeq Israel, Chunghwa Taiwan, Telus Canada, Telekom South Africa, SK Korea, (U.S.) AT&T, Century, Frontier, Windstream, Belgium, Omantel

Light blue: Smaller carriers in Germany, Norway, Finland, Japan

Green: Incumbent likely:  France, Germany, & Poland  

Fraunhofer-model 320BT has found success in the lab by upping the power, adding more bits/carrier, and modifying the Power Spectral Density. The standard is being revised and the chipmakers are working furiously. Blue and green lines in the chart project the results from a model by Daniel Hincapie and Mathias Leibiger of Fraunhofer, presented in an EE Times article. A map is not the territory and simulations are not working chips, of course.

Their simulation projects an improvement of 150-200 megabits at loops under 100 meters, typical in apartment buildings. Lucky tenants will get a gigabit, a crucial goal for AT&T. They will be selling as part of their Gigapower offering, so they needed the gig for marketing purposes. 

At 300-350 meters, BT's target distance, the newer units may raise speeds 20-40 megabits. Above 400 meters, there is little difference expected.

Kevin Foster of BT strongly endorsed the changed standard, which is based on testing by his colleague Trevor Linney. Rami Verbin of Sckipio is confident he can deliver the chips. Everyone's hoping for early next year, but nothing's certain. 

Caution. People lost their jobs - and Ameritech lost tens of millions - when early ADSL fell 20% short of simulations. 


212 GHz and cDTA are soon shipping from Adtran. True gigabit is here. Sales takeoff is almost in sight, probably Q1 2018.
Australia confirms 1M, AT&T is ready to ramp, DT finally is moving. Omantel and Telkom South Africa are now on the map. Almost all telcos are now choosing for large buildings when they don't go FTTH. MNet Cologne and Chunghwa Taiwan have changed from fiber all the way to in the basement.

212 MHz and cDTA Are Ready: Adtran
Frank Miller of Century: Will be Important to Us

Carl Russo: Since 2007, I've Been Turning Calix Into a Software Company

Adtran Chosen for Australia nbn Fiber to the curb.

nbn looking to a million lines. This one is big. Adtran is on a roll, with DT & AT&T also looking good for 2018.

1,400,000,000 In The Works. 1.4 Gigabits
South Africa & Connecticut Go Nokia

Omantel: 90% Fiber &


Read more ...