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Network IQ Training Manual Chapter 5 - Structured Cabling Standards for Fibre Systems

Network IQ Training Manual Chapter 5 - Structured Cabling Standards for Fibre Systems. Agenda. Purpose of Standards Cabling Standards Worldwide Key Standards for Structured Cabling fibre Optic Classes Duplex System Polarity New Standards/Updates Summary.

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Network IQ Training Manual Chapter 5 - Structured Cabling Standards for Fibre Systems

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  1. Network IQ Training ManualChapter 5 - Structured Cabling Standards for Fibre Systems

  2. Agenda • Purpose of Standards • Cabling Standards Worldwide • Key Standards for Structured Cabling • fibre Optic Classes • Duplex System Polarity • New Standards/Updates • Summary

  3. Purpose of Standards (Cabling and Communication Systems) • Promote trade and commerce • Set rules for an open system, open participation. • Ratification based on voting ballot process: • Voters consist of customers, consultants, manufacturers • Protect customers when buying from multiple manufacturers • Ensures compatibility of components between vendors • Provide guidance or recommendation for products to ensure consistent operation of a system

  4. Cable Testing Fire Resistance Transmission Protocol Connector Mating Purpose of Standards (Cabling and Communication Systems) • Different components and features of a system must be defined • Standards help solve the puzzle of compatibility problems • However understanding the Standards can also be a puzzle!

  5. ANSI/TIA/EIA-568-C.1 Commercial Building Telecommunications Wiring Standard ANSI/TIA/EIA-568-C.2 Balanced Twisted Pair Cabling ANSI/TIA/EIA-568-C.3 Optical Fibre Cabling EN50173-1:2003 Performance Requirements Of Generic Cabling Systems Worldwide Cabling Standards ISO/IEC 11801:2002 + Amd 1 + Amd 2 IT Generic Cabling for Customer Premises

  6. Region International Hemisphere/ Continent Country Standards for Structured Cabling ISO/IEC 11801 EN50173-1 TIA/EIA-568.B e.g., Deutsche Kommission Elektrotechnik British Standards Standards for Active Electronics Active equipment requirements from IEEE incorporated in structured cabling standards Cooperation of Standard Workgroups Additional information listed in reference pages on standards organization names and areas of competence

  7. Horizontal cabling system – with copper - up to 100 m; incl. patch cords Building backbone cabling system - fibre - up to 500 m Campus backbone cabling system - fibre only -up to 1500 m Total channel length max. 2000m for fibre only cabling Structured Cabling Systems StandardsEN 50173-1, ISO/IEC 11801

  8. The Need for Structured Cabling Server Racks • Point to point structure • The cabling starts with a few connections… and this is how it ends up... • No defined cable paths • Changes made at active equipment • Problem determination difficult • System growth can be impacted • Mess under the floor Storage Switch Racks

  9. Structured Cabling Systems StandardsEN 50173-1, ISO/IEC 11801 • Star Structure • Each circle represents a patch panel or outlet FD: Floor Distributor TO: Telecommunications Outlet BD: Building Distributor CD: Campus Distributor

  10. Fibre Polarity in 2-fibre ChannelsISO/IEC 11801, TIA-568-C.0 • Corning recommends Reverse Pair Positioning • A - B Patchcord • Position A connector crosses to Position B connector • At transceiver, Position A connects to receiver • At transceiver, Position B connects to transmitter

  11. Fibre Polarity in 2-fibre ChannelsDuplex Jumper – Crossed and Straight Fibres are physically straight, Optical circuit is logically crossed - Reverse Pair Positioning (Standard) Fibres are physically crossed, Optical circuit is logically straight (Non-standard)

  12. Fibre Polarity in 2-fibre ChannelsDuplex Jumper Clips and Duplex Adapter Position A Position B Position A Position B Front Front

  13. Fibre Polarity in 2-fibre ChannelsReverse Pair Positioning, ISO/IEC 11801, TIA-568-C.0 • 1st Patch panel is “straight” (consecutive fibre order) • 2nd patch panel is reverse-pair fibre order

  14. Structured Cabling Systems StandardsEN 50173-1, ISO/IEC 11801 Fibre Optic Categories 1 Attenuation at 850 / 1300 nm 2 Attenuation at 1310 / 1383 / 1550 nm ** laser bandwidth

  15. Cabling Standards – Component Requirements

  16. Fibre Standards Update • OM4 Fibre Class • Ratified in ISO/IEC 11801 and EIA/TIA 568C • Defined as 4700MHz-km laser bandwidth, EMB (effective modal bandwidth) • OFL (overfilled launch) with LED bandwidth defined at 3500 MHz-km • Provides extended reach for 10Gbps VCSEL systems; up to 500meters • Limited extended reach for 40 and 100Gbps systems: 150m

  17. 40G Ethernet Parallel Optics: OM3 fibre 12F MTP Interface

  18. 100G Ethernet Parallel Optics: OM3 fibre 24F MTP Interface Source: USConec

  19. Fibre Standards Update - 40G and 100G Ethernet • Ratified June 2010 • Fibre Connectivity based on MTP • Common multimode solutions based on parallel optics • VCSEL sources at 850nm • 100m max reach on OM3; 150m on OM4 (max. conn. loss: 0.5dB) • 100GBASE-SR10 • 100G will be 2 x 10 “lanes” of 10Gbit/sec • 40GBASE-SR4 • 40G will be 2 x 4 lanes of 10Gbit/sec • Single-mode solutions based on Wave Division Multiplexing • 40GBASE-LR4 (WDM): 10 km - 4λ x 10G @1300 nm • 100GBASE-LR4 (WDM): 10 and 40km - 4λ x 25G @1300 nm • Copper solutions only 10m • 40GBASE-CR10: 4x10Gbps on twin-axial cable • 100GBASE-CR10: 10 x 10Gbps twin-axial cable

  20. Fibre Standards Update • Maximum Supported lengths for Protocols: OM4 vs OM3 * OM3/4 not defined for 1G in IEEE

  21. Summary Cabling Standards • Standards provide guidance for components and systems to ensure installed systems perform properly and reliably support various protocols. • Standards ensure products from different vendors are compatible. • EN 50173 (based on ISO/IEC 11801 ) is the European standard for structured cabling • Some customers may follow TIA 568C in Europe, MEA region • 40G and 100G ratified June 2010 • Require MTP connectivity and OM3 fibre (minimum)

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