Fiber Optics Institute

Standards library

Practical summaries of the international standards that govern fiber optics — with links to the official sources. Standards texts are copyrighted by their publishers; always obtain the official document.

CENELEC
EN 50173 series

Information technology — generic cabling systems (Europe)

The European counterpart of ISO/IEC 11801, harmonized for EU installations and referenced by national building codes.

Official source ↗

ISO/IEC
11801 series

Generic cabling for customer premises

The international structured-cabling framework defining OM1–OM5 multimode and OS1a/OS2 single-mode cabling classes, channel lengths and performance for offices, data centres and industrial premises.

Official source ↗

TIA
TIA-568.3-D

Optical fiber cabling and components standard

North-American structured-cabling requirements for fibre: recognized fibre/connector types, polarity methods (A/B/C) for arrays, and channel/link performance parameters.

Official source ↗

TIA
TIA-598-D

Optical fiber cable color coding

The 12-colour identification sequence (Blue → Aqua) for fibres, buffer tubes and units, plus premises jacket colours (yellow SM, orange/aqua MM).

Official source ↗

TIA
TIA-606-C

Administration standard for telecommunications infrastructure

Labeling and record-keeping: unique identifiers for cables, ports, spaces and pathways so any strand can be located and traced years later.

Official source ↗