This Standard specifies the mechanical and transmission requirements of category 3, 5e, 6, 6A, and 8 balanced twisted-pair copper cabling and components.

ANSI/TIA-568-C.2 “Balanced Twisted-Pair Telecommunications Cabling and Components” was developed by the TIA TR-42.7 Copper Cabling Subcommittee and published in August, 2011.

Significant changes from the previous edition include:

  • Category 5e cabling is recommended for support of 100 MHz applications
  • Category 5 channel performance has been moved to an informative annex
  • Channel and permanent link performance requirements have been added
  • Performance equations for individual transmission parameters are listed in a single table for all categories
  • Coupling attenuation has been introduced as a parameter under study
  • One test method is specified for all categories of connecting hardware

ANSI/TIA-568-C.2-1 “Addendum 1, Specifications for 100Ω Category 8 Cabling” published in July, 2016 and contains mechanical and transmission requirements and laboratory and field test verification methods for a shielded cabling system targeted to support 25 Gb/s and 40 Gb/s transmission over a 30 meter channel containing two connectors across the signal band of 1 MHz to 2 GHz.  Click here for answers to common category 8 cabling questions.

ANSI/TIA-568-C.2-2 “Addendum 2, Alternative Test Methodology for Category 6A Patch Cords” published in November, 2014 and provides requirements for an alternative category 6A patch cord test head.

ANSI/TIA-568-C.2  Content

  • Mechanical Requirements
  • Transmission Requirements
  • Annexes addressing Connector Reliability, Measurement Requirements, Test Procedures, Connector Transfer Impedance Test Method, Connector Test Fixtures, Multiport Measurement Considerations, Installation in Higher Temperatures, Propagation Delay Derivations, Return Loss Limit Derivation, Modeling Configurations, NEXT Loss Limit Considerations, PSAACRF and AFEXT Loss Normalization, and Category 5 Channel Parameters

ANSI/TIA-568-C.2-1 Content

  • Mechanical Requirements
  • Transmission Requirements
  • Annexes addressing Reliability Testing of Connecting Hardware, Measurement Requirements, Cabling and Component Test Procedures, Channel and Permanent Link Configurations with Additional Connectors and/or Cables, and Length Scaling, and Modeling Configurations

ANSI/TIA-568-C.2-2 Content

  • Alternative Test Head NEXT loss Requirements

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