Technology - Infrastructure - Last Mile 2 - Fibre - FTTP, Passive Optical Networks

Synopsis

Fibre to the Premises is the most advanced last-mile broadband technology, encompasses Fibre to the Home, Business and Building. We introduce the major standards organisations in this field and discuss the needs of customers and carriers. The PON architecture is described in detail, including its ability to carry a hundred or so RF analogue and digital video channels on a separate wavelength.

Table of Contents

• 1. Synopsis
  
• 2. Introduction
  
• 3. Customer needs
  
  • 3.1 Downstream data rates
    
  • 3.2 Upstream data rates
    
  • 3.3 QoS
    
  • 3.4 POTS, reliability and backup powering
    
  • 3.5 Video
    
  • 3.6 Business requirements
    
• 4. Needs of telecommunications carriers
  
  • 4.1 Reach and equipment location
    
  • 4.2 Redundancy and switchover times
    
  • 4.3 OAM – Operations Administration and Maintenance
    
  • 4.4 Support for ‘legacy’ services
    
  • 4.5 Regulatory requirements
    
• 5. Standards organisations and industry bodies
  
  • 5.1 ITU-T
    
  • 5.2 FSAN
    
  • 5.3 IEEE - Ethernet in the First Mile (EFM)
    
  • 5.4 Metro Ethernet Forum
    
  • 5.5 EFM Consortium
    
• 6. Architectural considerations
  
  • 6.1 Point-to-point versus PON
    
    • 6.1.1 Active optical network - star topology
      
    • 6.1.2 Passive Optical Network - PON
      
  • 6.2 Optics for single-fibre operation
    
    • 6.2.1 Integration and mass-production
      
    • 6.2.2 Sub-optimal attenuation
      
    • 6.2.3 Laser power and link budgets
      
    • 6.2.4 Dispersion limits
      
    • 6.2.5 Extending capacity in the future
      
  • 6.3 Video distribution at 1550nm
    
    • 6.3.1 Complex modulation at OLT
      
    • 6.3.2 Distance limits
      
    • 6.3.3 ONU and PON requirements
      
• 7. Related reports