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STRUCTURED CABLING SYSTEM

STRUCTURED CABLING SYSTEM. NETWORK CABLING STANDARDS OVERVIEW. NETWORK CABLE SOLUTIONS MODULE 1-A. NETWORK CABLING STANDARDS. Why? Provide personal safety Protect equipment from failure Recognize regulatory considerations Meet performance requirements. NETWORK CABLING STANDARDS.

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STRUCTURED CABLING SYSTEM

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  1. STRUCTURED CABLING SYSTEM

  2. NETWORK CABLING STANDARDS OVERVIEW NETWORK CABLE SOLUTIONS MODULE 1-A

  3. NETWORK CABLING STANDARDS Why? • Provide personal safety • Protect equipment from failure • Recognize regulatory considerations • Meet performance requirements

  4. NETWORK CABLING STANDARDS • Presentation Topics • Historical perspective of LAN cabling • Current standards for structured systems cabling • The TIA Standards • The ISO Standards • The CENELEC Standards • Standards Comparison

  5. NETWORK CABLING STANDARDS • Historical Overview • Throughout 1980’s, various network cabling and connector techniques were used. For example: • IEEE 802.3 Trunk and AUI transceiver cables (bus topology) • IEEE 802.5 Token Ring (ring topology) • Proprietary broadband and baseband over twisted pair and coax

  6. NETWORK CABLING STANDARDS • 1990’s marked the introduction of structured cabling system standards for data communications. • 1990 release of EIA/TIA-568 (North American) • 1991 - 2007 various addenda (TSBs) • 1994 ISO/IEC 11801 (International) • 1995 revision of 568 to TIA/EIA-568-A • 1995 EN 50173 (CENELEC) • 2002 ISO/IEC 11801 (International) Edition 2. • 2005 revision of 568 to TIA/EIA-568-B inclusions of various addenda (TSBs)

  7. NETWORK CABLING STANDARDS • To date, several addenda had been released due to the bandwidth requirement. Cat7a is even in the process.

  8. NETWORK CABLING STANDARDS These are some of the standards organizations that dominate the world market for design and implementation of structured cabling systems. • Standard Organizations • TIA (Telecommunications Industry Association) • ISO (International Standard Organizations) • CENELEC (European Community for Electrotechnical Standardization) • NEMA (National Electrical Manufacturers Association) • ICEA (Insulated Cable Engineering Association)

  9. NETWORK CABLING STANDARDS • Reasons why Structured Cabling Standards were developed • To create generic cable and connector designs • Establish standard cabling architecture • Establish minimum performance guidelines for cables, connectors and system links • Develop cabling performance specifications that can be used by systems designers and active component manufacturers • Create a transparent physical media that will support all current and future network protocols and applications • Reduce physical layer costs for LAN cabling components

  10. NETWORK CABLING STANDARDS • North American Standards • TIA/EIA-568-A (Cabling components and Architecture) • EIA/TIA-569 (Cabling pathways and spaces) • TIA/EIA-606 (Cabling system administration) • TIA/EIA-607 (Grounding and bonding of cabling system) • Technical Systems Bulletin (TSB) • TSB-67 (Horizontal link performance for UTP cabling) • TSB-72 (Optical fiber cabling guidelines for commercial building) • TSB-75 (Open office cabling guidelines, e.g., zone distribution) • Referenced Standards (ICEA, ASTM, NEC, UL)

  11. ADDENDA TO 568-A AND FUTURE WORK • TIA/EIA-568-A-1 - Propagation Delay and Delay Skew • TIA/EIA-568-A-2 - Corrections and Additions to TIA/EIA-568-A (centralized optical fiber cabling, transposition, polarization, etc..) • TIA/EIA-568-A-3 - Bundled cables, must be 3dB better than the specified p-p NEXT loss for each cable type • TIA/EIA-568-A-4 - Production of Modular Cord NEXT Loss Test Method and Requirements for UTP Cabling • TIA/EIA-568-A-5 - Add’l Transmission Performance Spec for 4-Pair 100 Enhanced Cat 5e Cabling

  12. ADDENDA TO 568-A AND FUTURE WORK • TIA/EIA TSB 95 - Additional Transmission Performance Guidelines for 4-Pair 100 Category 5e Cabling-ELFEXT • PN-3139 - Technical Specification for 100 STP Cabling • PROPOSED ‘568-B.1 - Commercial Building Telecommunications Cabling Std: Part 1, Gen. Reqmt • PROPOSED ‘568-B.2 - Commercial Building Telecommunications Cabling Std: Part 2, Twisted-Pair Media • PROPOSED ‘568-B.3 - Commercial Building Telecommunications Cabling Std: Part 1, Optical Fiber Media

  13. FUTURE SPECIFICATIONS • Category 7 • describe a new performance range for fully STP cabling • will be specified in the frequency range of 1-600 MHz • backward compatibility • Category 7a • describe a new performance range for fully STP cabling • will be specified in the frequency range of 1000-1200 MHz • backward compatibility

  14. ANSI/TIA/EIA-568-A“Commercial Building Telecommunications Cabling Standards” • This document was created and is regularly updated to provide the communications industry with a “standards-based” structured network cabling platform that will support a wide range of communications applications. • Originally adopted in 1991 as EIA/TIA-568 • 568-A approved in October 1995, replaces 568, TSB-36, TSB-40A

  15. ANSI/TIA/EIA-568-A • Contents • Structured Cabling Topologies • Cable Distances, Installation & Grounding Guidelines • Cable Media • Work Area defined • Telecommunication Equipment Room and Entrance Facility location, function and design. • 100 ohm UTP Cabling System • Optical Fiber Cabling System • Hybrid and Undercarpet Cables

  16. ANSI/TIA/EIA-568-A • Scope • Supports wide range of different sites • Geographical separation 3000 meters (9840’) • 1,000,000 square meters (10,000,000 sq.ft.) • Up 50,000 users • Useful life span in excess 10 years • Applies to the communications wiring of buildings that are office oriented.

  17. ANSI/TIA/EIA-568-A • Recognized Cables-Horizontal & Backbone • 4 pair 100-ohm UTP • higher than 4 pair for backbone, e.g., 25-pair • 62.5/125 duplex optical fiber cable • Single-mode optical fiber in backbones • UTP cables with > 4 pairs for use in backbones • Hybrids acceptable. (TIA/EIA-568-A-3, Addendum)

  18. ANSI/TIA/EIA-568-A • Topology-Horizontal • Star topology • Work area outlets connected to telecommunications closets • Maximum cabling length 100 meters (328 ft.) • Horizontal distance 90 metes • Work station jumper 3 meters • Cross connect jumpers & patch cords 7 meters • Outlets must be Category compliant with horizontal cabling • Patch cords must be Category compliant with horizontal cabling

  19. ANSI/TIA/EIA-568-A • Recommended Horizontal Cabling • Minimum of two telecomm outlets shall be provided for each work stations • Work stations shall be supported by at least one 4 pair 100-ohm UTP • The other/second outlet at work station shall be supported by one or more of the following: • 4-pair 100-ohm UTP • 62.5/125 duplex optical fiber cable

  20. ANSI/TIA/EIA-568-A • Physical star topology for structured cabling per TIA/EIA-568-A can support the logical connection methodologies of most networking architectures.

  21. ANSI/TIA/EIA-568-A • Topology • Conventional hierarchical star topology. • Non-star configurations can be accommodated with interconnections, electronics, or adapters. • If bus and ring configurations are anticipated, direct connections between telco closets are allowed. • Direct connections are in addition to star topology

  22. ANSI/TIA/EIA-568-AStructured cabling physical star topology • No more than 3 X-connects between each horizontal cross-connects. • Maximum of two hierarchical levels of X-connects • Cabling can be UTP, FTP, STP & Fiber

  23. ANSI/TIA/EIA-568-A • Installation • Splices are not allowed as part of the horizontal cabling. • Each four pair cables shall be terminated on a eight position jack. • Pin assignments shall be as per T568A or T568B. • Category 5e, pair untwisting not more than 0.5”.

  24. PIN ASSIGNMENTS

  25. ANSI/TIA/EIA-568-A • Grounding • Ensure that grounding conforms to TIA/EIA 607, NEC and local requirements. • Ensure that each telco closet, equipment room, and entrance facility has grounding access. • Ensure grounding is available for cross-connects, patch panel racks, telco and data equipment.

  26. TIA/EIA-TSB-67“Transmission Performance Specifications for FieldTesting of Unshielded Twisted Pair Cabling Systems” • This document was developed to give the engineer and installer a means to evaluate UTP horizontal cabling performance for Category 3, 4 and 5e links (later applied to higher Category). • This document is used as an addendum to TIA/EIA-568-A

  27. TIA/EIA TSB-67 • Contents • Channel and basic links defined for horizontal cabling • Test Parameters: NEXT, Attenuation, Wire Mapping, Physical vs. Electrical Length • Defines data reporting and accuracy • Field measurement procedures • Annex A defines field test instruments • Accuracy • Test Set-up • Reference Test Methods • Electrical Length Measurement Methods

  28. TIA/EIA TSB 67Schematic Presentation of a Basic Link Test Configuration

  29. TIA/EIA TSB 67Schematic Presentation of a Channel Link Test Configuration

  30. TIA/EIA TSB-72“Centralized Optical Fiber Cabling” • Use of optical fiber for centralized cabling within a building. • This cabling option is in addition to the TIA/EIA-568-A topology and distance guidelines for structured cabling using optical fiber. • Allows for workstation cable runs originating in the equipment room. • Allows for non-distributed, centralized network electronics.

  31. TIA/EIA TSB-72 • Allows for future cabling modifications including addition of telecommunication closets without need for re-cabling. • Follows TIA/EIA-568-A fiber cabling specifications • Maximum cabling distance - Backbone & horizontal is 300 meters (90 meters maximum for horizontal portion)

  32. TSB-75 Additional Horizontal Cabling Practices for Open Offices Application of Multi-user Telecommunications Outlet Assembly

  33. ANSI/EIA/TIA-569“Commercial Building Standard forTelecommunications Pathways and Spaces” • Created as a guideline for architects, engineers and construction industry to provide a building and campus cabling infrastructure that will remain useful and exhibit no or few problems for many years. • Developed by participants from - America Institute of Architects and Construction Specification Institute • Follows good building design guidelines set forth by • BICSI (Building Industry Consulting Services International) • BOMA (Building Owners and Managers Association) • IBI (Intelligent Building Institute) • IFMA (International Facility Management Association)

  34. ANSI/EIA/TIA-569 • Contents • Horizontal Pathways (Under-floor, Access Floor, Conduit, Trays, Ceiling, Perimeter, etc.) • Backbone Pathways (Inter and Intra-building) • Workstation Pathways and Telecom Outlets • Telecommunications Closet Design • Equipment Room Design • Entrance Facilities • Fire Stopping and Grounding • Pathway Separation from EM Energy Sources

  35. ANSI/EIA/TIA-569 • Conduit Types Recognized: • Electrical metallic tubing • Rigid metal conduit • Rigid PVC • Conduit Type Not Recommended: • Metal flex conduit • Cable suffers from abrasion

  36. ANSI/EIA/TIA-569 • Installation Guidelines • Maximum run lengths without pull point = 30 meters (100 feet). • Maximum of two 90 degrees bends between pull boxes or pull points. • Fish tape or pull cord shall be placed in installed conduit. • Inside Radius of a bend: • Less than 50mm (2 in.) - 6 times the internal diameter • Greater than 50mm (2 in.) - 10 times the internal diameter • Conduit to be used for fiber optic cable - 10 times the internal diameter.

  37. ANSI/EIA/TIA-569 • Installation Guidelines • Single conduit run extending from a telecommunications closet shall not serve more than three outlets • Conduit shall be reamed to prevent cable jacket abrasion. • Conduit shall be terminated with an insulated bushing. • Minimum conduit size based on percent fill

  38. ANSI/EIA/TIA-569 : Conduit Size Recommendation

  39. ANSI/EIA/TIA-569 • Recommended maximum percent Conduit Fill for Backbone Cable • One cable 53% fill • Two cables 31% fill • Three cables 40% fill

  40. ANSI/EIA/TIA-569 • Pathway Separation • Closed metal pathways provide adequate protection from capacitively coupled (rapid changes in high voltage) in commercial buildings. • Closed metal pathways of ferrous induction suppression material shall be used in areas of high inductively coupled noise (rapid changes in high current) • Open or non-pathways shall be placed with sufficient separation.

  41. ANSI/EIA/TIA-606“Administration Standard for theTelecommunications Infrastructure of CommercialBuildings” • Developed as to establish standardized cabling administration procedures for labeling and documentation • Designed for use with TIA/EIA-568-A and EIA/TIA-569

  42. ANSI/EIA/TIA-606 • Contents: • Administration Concepts • Identifies, Records, Linkages • Pathways and Space Administration • Identifiers, Labeling, Records, Reports • Wiring System, Administration • Identifiers, Label, Records, Reports, Drawings • Grounding and Bonding Administration • Labeling and Color Coding: • Labels and Termination Fields

  43. ANSI/EIA/TIA-606 • Scope • To provide a uniform administration scheme that is dependent of applications which may change several times throughout the life of the building. • Ties into TIA/EIA 568-A and EIA/TIA-569

  44. ANSI/EIA/TIA-606 • Areas of infrastructure to be administered • Termination for the cable located in work areas, telecommunication closets, equipment rooms and entrance facilities • Cable between the terminations • Pathways between terminations that contain the media • Spaces where terminations are located • Bonding/grounding as it applies to telecommunications

  45. ANSI/EIA/TIA-606 • Cable Record • Cable identification number • Fiber optic backbone…FB01 • Copper backbone…CB01 • Copper 4 pair, plenum…C5P0001 • Description of cable • 4 pr., Cat. 5e • 6 fiber, 62.5, OFNR • Unterminated/ Damaged / Available • References to specific conductors and their availability Note: Identifier formats are listed in detail within the TIA/EIA-606 standard.

  46. ANSI/EIA/TIA-606 • Cable Record • Required linkages • Alpha numeric identification specific to each termination • End 1…TC3A-B17-A1 • Telco closet 3A, termination hardware B17, termination on position A1 • Pathway records • Cable tray…CT01 • Conduit…CD02 • Backbone conduit…BCD08

  47. ANSI/TIA/EIA-606

  48. ANSI/TIA/EIA-606

  49. ANSI/TIA/EIA-607“Commercial Building Grounding and BondingRequirements for Telecommunications” • Created to provide standard methodologies for grounding of building and communication infrastructures for the safe and reliable operation of electrical and electronics systems. • This document is to be used in conjunction with • ANSI/TIA/EIA-568-A-1995 • ANSI/TIA/EIA-569-1990 • ANSI/TIA/EIA-606-1993 • TIA/EIA TSB-60 (Backbone for Residential and Light Commercial Buildings) • ANSI/TIA/EIA-570-1991 (residential communications wiring)

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