Jan Dewinter MAXCELL

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FTTx Summit Europe 2012

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Jan Dewinter MAXCELL

  1. 1. Sharing of existing duct infrastructure in FTTx projectsHow it saved France 100 million Euros in 3 yearsHow it can save you millions of Euros
  2. 2. Source: Fiberopticmania
  3. 3. CAPEX Distribution for Greenfield FTTH Deployments Source: Handbook of the FTTH Council Europe
  4. 4. Dr. Kátrin Schweren, EU Affairs Delegate, Swisscom "Swiss Fibre Optics or Fibre Suisse:Multiple Fiber Multiply Innovation"FTTH Europe Conference, Copenhagen, 11-12/02/2009
  5. 5. From the Digital agenda for Europe:Action 42: Adopt an EU broadband communicationAction 43: Funding for high-speed broadbandAction 45: Foster the deployment of NGA networksAction 46: Member States to develop national broadband plansAction 47: Member States to facilitate broadband investmentAction 48: Use structural funds to finance the roll-out of high-speed networkshttp://blogs.ec.europa.eu/neelie-kroes/broadband-cost-cutting
  6. 6. Duct sharing, what does it mean? •More than one cable in a conduit •Cables from different operators •Without sub ducting (cable over cable) •With sub ducting Rigid sub ducting Flexible Textile sub ducting
  7. 7. Duct sharing without sub ducting• Adding cable over cable in an incremental way• Leads to sub-optimal use of a duct  entanglement of cables  high friction between cabe jackets whilst installing cables  risk of damaging cable jackets (burn through)  when several cables in: impossible to replace a cableOnly 1/3 of theoretical duct capacity can be used, 2/3 is lost!
  8. 8. Duct sharing withoutsub ducting (cable over cable)Cable at start After 250 m slight damagesAfter 500 m: cable jacket clearly damaged After 750 m cable jacket heavily damaged Source: Milliken & CO
  9. 9. Duct sharing withoutsub ducting (cable over cable)• Cable entanglement
  10. 10. Duct sharing with rigid sub ducts• Install smaller sub ducts in outer duct – e.g. 3x 32 mm sub ducts in a 100 mm outer duct – e.g. 5x 12 mm mini ducts in a 50 mm outer duct• Adding cables in an incremental way, physically separated – No entanglement of cables – limited friction, no risk in serious cable jacket damages• Still results in a sub-optimal use of a duct  “a circel in a circel in a circel”, most space used up by plastic & air  if outer duct is deformed less sub ducts can be installed  if outer duct contains mud, sand, ... les sub ducts can be installed
  11. 11. Duct sharing with rigid sub ductsA circel in a circel in a circel Sediment at bottom outer duct Ovalized outer duct
  12. 12. Duct sharing withFlexible Textile sub ducts• Duct sharing results in cable deployment of several operators in the duct infrastructure originally designed for only 1 operator• Flexible Textile sub ducts = the only solution to maximize the capacity of existing ducts: – No entanglement between cables – Low friction, no risk of damaging cable jackets – Takes only up the space of a cable, no circel in a circel in a circel – Copes with deformed and dirty ducts – Allows easy overlay of existing cables• Triples the capacity of a duct compared with no sub ducting / rigid sub ducting
  13. 13. Duct sharing in France• Process: EU directives  National legislation  Telecom Regulator ARCEP  Duct Sharing negotiations of operators facilitated by ARCEP• Agreement reached mid 2008: engineering/process/financial aspects• Competitors stopped creating their own duct infrastructure since then (cost!)• 3 nationwide + several regional operators install their cables in the ducts of France Telecom• Flexible Textile ducts used where duct infrastructure is (nearly) congested• Flexible Textile ducts used when rigid mini ducts fail (outer duct in bad condition)• Flexible Textile inner duct used in small ducts (too small for rigid inner ducts) Flexible Textile sub ducts: THE alternative for expensive civil works in Brownfield environments Cost is a fraction of the cost of civil works (<10%)
  14. 14. 100 Million Euros savings in 3 years• Civil works: roughly € 100/m in urban areas• Civil works: additional challenges and costs:  Upfront project work  Time to get permits, bureaucratic struggles  No dig zones exist  Time windows for digging exist (e.g. once every 5 years)  Obligations of co-execution with utility companies
  15. 15. 100 Million Euros savings in 3 years in France • >1000 km of flexible inner duct installed 2009-2011 • >1000 km of civil works avoided • cost saving: €100/m x 1.000.000 m = € 100.000.000!
  16. 16. Conclusion: Flexible sub duct technology = CAPEX KILLER of FTTx projectswhen duct infrastructure is shared
  17. 17. Thank you

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