‘JUNO’, the new trans-Pacific submarine cable system by NTT and a few partners, serves the ever-growing digital economy in the Asia-Pacific region by landing in Japan which is a ‘Data Hub’ located in the mid-point of the US and Asian countries.

July 19, 2022

NTT Ltd. Japan Corp., PC Landing Corp., Mitsui & Co. Ltd. and JA Mitsui Leasing Ltd. recently announced the launch of the new company Seren Juno Network Co. Ltd. for constructing and operating ‘JUNO’, the new trans-Pacific submarine cable system that links the US and Japan. JUNO serves the ever-growing digital economy in the Asia-Pacific region by landing in Japan which is a ‘Data Hub’ located in the mid-point of the US and Asian countries.

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Seren manages the entire project from the planning, and construction to sales and operations of the network to provide reliable services for the global business activities of major technology companies, OTTs, and telecommunication carriers.

JUNO introduces the leading-edge SDM (Space Division Multiplexing) technology to enable the 20 optical fiber pairs (40 cores) per cable, whereas the cable with the conventional technology currently carries a maximum of 16 fiber pairs (32 cores). Juno provides a maximum capacity of 350 TBPS, the largest among any existing cable systems between the US and Japan.

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Furthermore, JUNO has two separate landing stations in Japan to provide additional security and resilience against natural disasters in the coastal areas of Japan. JUNO can alter the bandwidth of each branching route to adjust to the situation and flexibly meet each customer’s demand and evolving requirements.