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Standards. Historically. In the past Proprietary single source components (IBM Token Ring: Single Source Components) Applications driven (Data Comm’s Engineer LAN systems) Telephone systems Alarm Mutually incompatible Often difficult to expand or change post installation. Today.

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historically
Historically
  • In the past
    • Proprietary single source components
      • (IBM Token Ring: Single Source Components)
    • Applications driven
      • (Data Comm’s Engineer LAN systems)
      • Telephone systems
      • Alarm
    • Mutually incompatible
    • Often difficult to expand or change post installation
today
Today
  • Application / Service friendly
    • Application Data Comm’s Engineer
    • Service Telecommunications Engineer
    • Convergence of Data comm’s and Telecom’s: Voice over IP
    • Structured cabling systems
  • Ease of Engineering
  • Compatible and hence lower cost multi source components
  • Faster installation
  • Cost effective
slide4
Standards bodies
  • ANSI - the American National Standards Institute (USA)
  • TIA - the Telecommunications Industry Association (USA)
  • EIA - the Electronics Industry Association (USA)
  • ISO - the International Organisation for Standardisation
  • IEC - the International Electrotechnical Committee
  • CENELEC - the European Committee for Electrotechnical Standardisation
ansi tia eia 568 and 568 a b
ANSI/TIA/EIA – 568 and 568 – A / B
  • ANSI/TIA/EIA – 568
    • first published in 1999
  • ANSI/TIA/EIA – 568-A
    • revised version published in 1995.
  • ANSI/TIA/EIA – 568-B
    • Further revision published in 2001

These standards represented the first comprehensive document on structured cabling and many of their recommendations have been incorporated into standards developed by other standards bodies.

ansi tia eia 568b
ANSI/TIA/EIA – 568B
  • TIA/EIA-568-B
    • 60 contributing organizations
    • including manufacturers, end-users, and consultants
    • Rapid changes in technology drove revisions
      • PC use, Applications, Internet, Broadband, Optical fibre
    • 95’ 99’ 01’
    • 568-B.1 defines general requirements
    • 568-B.2 focuses on components of balanced twisted-pair cable systems
    • 568-B.3 addresses components of fibre optic cable systems.
ansi tia eia 568b goals
ANSI/TIA/EIA – 568B Goals
  • To define a standard to encompass
    • Design and implementation challenges
    • For structured cabling systems
    • Commercial buildings
    • Campus environments
  • The bulk of the standard defines
    • Cabling types, Distances, Connectors
    • Cable system architectures
    • Cable termination standards and performance characteristics
    • Cable installation requirements
    • Methods of testing installed cable
iso iec 11801
ISO/IEC 11801
  • Initiated in 1990
  • Published in 1995.
  • Its was developed with the co-operation of fifteen nations
    • the UK, the USA, Japan, Canada, Denmark, Finland, Norway, Sweden, Spain, France, Germany, Holland, Austria, Italy and Belgium.
  • The ANSI/TIA/EIA- 568 standard was used as a basis for the ISO/IEC international standard.
  • Currently on ISO/IEC 11801 2nd Edition - 2000
en 50173
EN 50173
  • CENELEC adopted a draft version of ISO/IEC 11801
    • EN 50173 formed the basis of a regional European cabling standard
    • References European standard components rather than International ones
      • E.g. Low Smoke Zero Halogen cables
    • All national standards within Europe that conflicted with the CENELEC standard were withdrawn upon its publication in 1995
    • Latest version EN 50173 – 3:2007
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