The meaning of many terms, symbols, and abbreviations that are referenced in optical fiber cabling and components Standards may differ from commonly recognized usage.

ANSI/TIA-440-C “Fiber Optic Terminology” was developed by the TIA TR-42.5 Telecommunications Infrastructure Terms and Symbols Subcommittee and published in July, 2017.  This Standard defines commonly used terms, symbols, and abbreviations for optical fiber applications.

ANSI/TIA-440-C Content

  • Terms and Definitions
  • Acronyms
  • Symbols


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