Subsea Cables & Internet Infrastructure

Transmission Technology: Spatial Division Multiplexing.  Length: 16,026 kilometers. Almost 10,000 US miles. Consortium Members: Google and Facebook. Type of Consortium: Open cable model.  Construction Status: Behind schedule due to permitting delays for Indonesian waters. Fifty-fifty control probably also slowed decision making.  Number of Fibre Pairs: Main trunk has 12. Estimated RFS: 1st or 2nd quarter 2025. Day One Aggregate Throughput: 144 Tbps.  Salient Features: First low latency, direct cable between Singapore and USA with no intermediate breakouts. One Indonesian branching unit. No telecom carrier consortium members. Amazon and Facebook land the cable themselves in Singapore and California.  Google announced  announced the 12 fibre pair SDM Echo project in early 2021 with a planned 2023 launch. However, permitting delays have slowed construction and the project is now expected to be RFS 2025. In addition, it is highly plausible that the 50-50 Facebook/Google control split sl

Google has been a path breaker in the submarine cable world. It financed the first spatial division multiplexing cable across the Atlantic, namely the 12 fibre pair Dunant system . It is also the owner of the new 16 pair  Topaz system which directly links Canada to Asia and bypasses the US. Not to mention the billion dollars Google is spending to crisscross the Pacific with a web of new cables connecting Japan, Guam, Hawaii, Chile, Australia, Fiji, French Polynesia, and other island chains. Umoja is no less surprising than its predecessors. It has two key components. A new terrestrial fibre highway in partnership with Liquid Technologies that will head Northwest from Kenya's data centres to Uganda and then South to traverse and connect Rwanda, the Democratic Congo Republic, Zambia, Zimbabwe, and finally, South Africa.  The bane of sub-Saharan Africa has been the lack of domestic long haul fibre connecting the landlocked countries to each other and to the coasts where the subsea