C-Lion1

Last updated
C-Lion1
C-lion cable card.png
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.

Contents

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 connection was offline again between December 25, 2024 and January 6, 2025 in connection with the 2024 Estlink 2 incident. [4] [5]

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. [6] [7] [8]

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. [9]

Faults in 2024–2025

A fault was detected in the cable on 18 November 2024, [10] 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. [11]

German Federal Defense Minister Boris Pistorius called the incident an act of sabotage. [10] As of 19 November 2024, the cause of the fault was being investigated. [12] [11]

The Lithuanian Naval Force announced increased surveillance of its waters in response to the damage and would discuss further measures with Lithuania's allies. [10]

On 29 November 2024, the operator Cinia Oy announced that the cable had been completely repaired. [13]

The cable was went offline again on December 25, 2024. The probable cause of the fault is considered to be a cable cut in the Gulf of Finland. [4] The damage was repaired on January 6, 2025. Cinia Oy is demanding the seizure of the vessel Eagle S linked with the incident to secure its claims for compensation. [5]

Landings points

C-Lion1 has landing points in:

See also

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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. 1 2 "Sabotage suspected after Baltic Sea telecoms cable C-Lion1 suddenly stops working". Sky News. Retrieved 2024-11-19.
  4. 1 2 "Fault Detected in Cinia C-Lion1 Submarine Cable". www.cinia.fi. Cinia Oy. Retrieved 26 December 2024.
  5. 1 2 "C-Lion1 Submarine Cable Fully Restored". www.cinia.fi. Cinia Oy. Retrieved 7 January 2025.
  6. ↑ 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.
  7. ↑ Haaramo, Eeva. "Helsinki to Frankfurt in 20 milliseconds: The Baltic cable that's breaking data speed records". ZDNet. Retrieved 2019-04-23.
  8. ↑ "Submarine Data Cable to Link Germany and Finland". eco. Retrieved 2019-04-23.
  9. ↑ "Cinia, C-Fiber Hanko team for extension of C-Lion-1 submarine network". www.lightwaveonline.com. 22 December 2016. Retrieved 2019-04-23.
  10. 1 2 3 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.
  11. 1 2 "Germany suspects sabotage behind severed undersea cables". BBC. 19 November 2024. Retrieved 19 November 2024.
  12. ↑ "A fault in the Cinia C-Lion1 submarine cable between Finland and Germany". www.cinia.fi. 18 November 2024. Retrieved 2024-11-18.
  13. ↑ "Sabotage-Verdacht: Ostsee-Datenkabel repariert". tagesschau.de (in German). Retrieved 2024-11-29.
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