The MAREA submarine cable, which connects the United States with Spain, reaches a speed of 26.5 Tbps

by Kelvin
El Chapuzas Informático

Cisco has announced that testing its platform Network Convergence System 1004 (NCS 1004) with the transatlantic cable TIDE It has been a success. This submarine cable, with 6,600 kilometers in length, connects the United States with southern Europe, specifically the cable leaves Virginia Beach and reaches the beach of Sopelana, in Bilbao, Spain.

The tests consisted of testing various combinations of channel capacity to maximize cable performance and spectral efficiency to offer greater transatlantic bandwidth, and the tests gave a record performance: 400G without errors from Virginia to Bilbao with channels that offer a spectral efficiency of 6.445 bps / Hz (bits per second / hertz); and a spectral efficiency of 4.52 bps / Hz in the case of the return loop (from Bilbao to Virginia and back to Bilbao) for a distance greater than 13,200 km.


Cisco Tide

The platform Cisco NCS 1004 has thus achieved a maximum capacity of 26.4 Tbps on the MAREA cable, reaching up to 18.9 Tbps in the case of the loop of transatlantic return. “This shows that 24.7 Tbps can be used comfortably on MAREA, being able to deploy up to 18.5 Tbps for double the distance in the case of the return loop, also with a wide margin"Highlights Bill Gartner, Senior Vice President and General Director of Optical and Optical Systems at Cisco.

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