C-Lion1

C-Lion1
Owners:
Cinia Oy
Landing points
Total length1,173 kilometres (729 mi)
Design capacity120 Tbit/s
Currently lit capacity144 Tbit/s

C-Lion1 is a submarine communications cable between Finland and Germany. The cable is owned and operated by the Finnish telecommunications and IT services company Cinia Oy.[1] It is the first direct communications cable between Finland and Central Europe; previous connections have been through Sweden and Denmark.

The cable was damaged in November 2024, taking the cable offline between November 18 and November 28.[2] Some officials suspect the damaging was an act of sabotage.[3]

The cable is 1,173 kilometres (729 mi) long and has eight fiber pairs with a design capacity of 120 Tbit/s and a maximum capacity of 144 Tbit/s.[4][5][6]

History

Alcatel Submarine Networks commenced the installation of the cable in October 2015, completing the process in January 2016. The cable entered commercial operation in May 2016.

In October 2017, a network switch was installed to the Finnish port city of Hanko.[7]

Fault in 2024

Main article: 2024 Baltic Sea submarine cable disruptions

A fault was detected in the cable on 18 November 2024,[8] after which the services provided over the cable went down. According to the Finnish operating company 'Cinia Oy', the cable service was interrupted by a subsea physical force .[3] The fault was discovered off the coast of the Swedish island of Öland.[9]

German Federal Defense Minister Boris Pistorius called the incident an act of sabotage.[8] As of 19 November 2024, the cause of the fault was being investigated.[10][9]

The Lithuanian Naval Force announced increased surveillance of its waters in response to the damage and would discuss further measures with Lithuanias' allies.[8]

On 29 November 2024, the operator Cinia Oy announced that the cable had been completely repaired.[11]

Landings points

C-Lion1 has landing points in:

See also

References

  1. ^ "Network projects". www.cinia.fi. Retrieved 19 November 2024.
  2. ^ "Cinia's C-Lion1 Submarine Cable Has Fully Restored". www.cinia.fi. Retrieved 29 November 2024.
  3. ^ a b "Sabotage suspected after Baltic Sea telecoms cable C-Lion1 suddenly stops working". Sky News. Retrieved 2024-11-19.
  4. ^ Greif, Björn (2016-01-12). "Neues Unterseekabel verbindet Deutschland und Finnland" [New submarine cable connects Germany and Finland]. ZDNet.de (in German). Retrieved 2019-04-23.
  5. ^ Haaramo, Eeva. "Helsinki to Frankfurt in 20 milliseconds: The Baltic cable that's breaking data speed records". ZDNet. Retrieved 2019-04-23.
  6. ^ "Submarine Data Cable to Link Germany and Finland". eco. Retrieved 2019-04-23.
  7. ^ "Cinia, C-Fiber Hanko team for extension of C-Lion-1 submarine network". www.lightwaveonline.com. 22 December 2016. Retrieved 2019-04-23.
  8. ^ a b c Bryant, Miranda (2024-11-19). "We assume damage to Baltic Sea cables was sabotage, German minister says". The Guardian. ISSN 0261-3077. Retrieved 2024-11-19.
  9. ^ a b "Germany suspects sabotage behind severed undersea cables". BBC. 19 November 2024. Retrieved 19 November 2024.
  10. ^ "A fault in the Cinia C-Lion1 submarine cable between Finland and Germany". www.cinia.fi. 18 November 2024. Retrieved 2024-11-18.
  11. ^ "Sabotage-Verdacht: Ostsee-Datenkabel repariert". tagesschau.de (in German). Retrieved 2024-11-29.
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