Breakout session day 2 voice of industry 2  jean fehlbaum real-helvenstein
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Breakout session day 2 voice of industry 2 jean fehlbaum real-helvenstein

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FTTH Conference Milan 2011 Day 2

FTTH Conference Milan 2011 Day 2

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Breakout session day 2 voice of industry 2  jean fehlbaum real-helvenstein Breakout session day 2 voice of industry 2 jean fehlbaum real-helvenstein Presentation Transcript

  • FTTH deployment accelerationthanks to extraction techniques Real Helvenstein & Jean Fehlbaum Date et page . 1
  • INTRODUCTION In western Europe the development of FTTH networks is following several important trends : 1. Mutualisation : from single fibre « Open Access » networks to multi-fibre multi- operator networks 2. Hybridation : combination between P2P interconnections for enterprise networks and GPON for residential customers 3. Extensive reuse of existing ROWs (Right-of-ways) : the most favourable infrastructure for FTTH deployment is chosen for the mutualisation (generally incumbent operators, but sometimes also CATV operators or utilities) 4. Major issue : cost reduction and risk sharing between competitors (legal, technical and commercial issue) => deployment capex reduction Nexans – Optical Fibres Cables & Components BG Seite . 2
  • FTTH Pilot project 2010P2P project 400% / Cooperation ILEC - Utilities Nexans – Optical Fibres Cables & Components BG Seite . 3 View slide
  • Innovations in cable laying techniques => Importance of infrastructure sharing Underground cable laying :  Classical pulling  Classical blowing  Micro-blowing  Micro-bundle extraction + +Micro-cables in power cablesNano-cables in telecom-nano-ducts Nexans – Optical Fibres Cables & Components BG Seite . 4 View slide
  • Innovations in cable branching techniques Micro-ducts network with duct branching Classical splicing and branching Classical midspan technique Straight midspan technique without extraction Straight midspan technique with extraction Straight midspan technique with extraction and repair possibility Nexans – Optical Fibres Cables & Components BG Seite . 5
  • Classical midspan branching technique Cable reserve in the branch-off location (6 to 10m). Building 1 Building 2 Building 3 Optical fibres standard Cable reserve cable Nexans – Optical Fibres Cables & Components BG Seite . 6
  • Classical midspan branching technique Cable reserve in the branch-off location (6 to 10m). Conditions : 1. Manhole 2. Cable reserve 3. Splicing Building 1 Building 2 Building 3 Flexibility point Branching closure with midspan technique WCT 1.5 Nexans – Optical Fibres Cables & Components BG Seite . 7
  • New straight midspan branching technique with extraction (spliceless) Creating the customer Connections Sequence of steps to extract a nano-drop cable at each subscriber site and create a loop back to utilise all the available nano-drop modulesDry nano-tube containing the 1. Splice fibresextractable nano-drop cable from the extracted 2. cut of the 3. Extract the nano extractable nano nano-drop cable to 4. Second drop cable for routing drop cable at the fibres in the extraction of the to building entry upstream location inner layer tubes nanodrop cable Central bundle with DP loop back splice Cable Sheath Aperture distribution fibre enclosure Cable (protected by extraction enclosure). Fibre splices Nexans – Optical Fibres Cables & Components BG Seite . 8
  • ISSUE 2 DIFFERENTIATION: FRANCE Conditions : TCO analyse and value transfer 1. Handhole 2. No cable reserve 3. No splicing~3’000 kilometers already installed Patent pending Nexans – Optical Fibres Cables & Components BG Seite . 9
  • OPEX Optimization New demand from the market : repairability Avoid cumulative transmission degradation caused by multiple repairs All the optical fibres micro and nanocables are movable inside the main cable structure Design (2 fibre variant shown) 1 : 250um coated fibre 2 : Aramid reinforcement yarns Patent pending 3 : LSHF Fire retardant sheath Nexans – Optical Fibres Cables & Components BG Seite . 10
  • User 24 User 14 User 13 User 12 User 11 User 1 ... ... User microduct Branching boxLBC nanodrops DPOSP Pull Back Cable repair. Distribution fibersInitial configuration Nexans – Optical Fibres Cables & Components BG Seite . 11
  • User 24 User 14 User 13 User 12 User 11 User 1 ... ... User microduct Branching boxLBC DPOSP Pull Back Cable repair.Incident on main cable Nexans – Optical Fibres Cables & Components BG Seite . 12
  • User 24 User 14 User 13 User 12 User 11 User 1 ... ... User microduct Branching boxLBC DPOSP Pull Back Cable repair.Incident on main cableRemoval of faultive microcable and nanocables Nexans – Optical Fibres Cables & Components BG Seite . 13
  • User 24 User 14 User 13 User 12 User 11 User 1 ... ... User microduct Branching boxLBC DPOSP Pull Back Cable repair.Incident on main cableRemoval of faultive microcable and nanocablesRepair of cable : pneumatic continuity Nexans – Optical Fibres Cables & Components BG Seite . 14
  • User 24 User 14 User 13 User 12 User 11 User 1 ... ... User microduct Branching boxLBC DPOSP Pull Back Cable repair.Incident on main cableRemoval of faultive microcable and nanocablesRepair of cable : pneumatic continuityRe-installation of the microcable and nanocables Nexans – Optical Fibres Cables & Components BG Seite . 15
  • Cost comparison between all branching techniques500045004000350030002500200015001000 500 0 Direct Buried µduct/µcable cabling µduct/µcable all at Cable with on demand once nanoduct/nanocable Optical cables Optical components µduct system Field workforce Nexans – Optical Fibres Cables & Components BG Seite . 16
  • CONCLUSION Advantages of extraction techniques  Capex reduction of > 30% in the outside plant.  Avoidssplicing operations in the branching points.  Accelerates deployment in the distribution network. Nexans – Optical Fibres Cables & Components BG Seite . 17