Comparison of '568-B Series Versus '11801:2002 2nd Edition Fiber Cabling Performance Specifications
Optical Fiber Cabling and Component Specifications:
- '568-B Series
- Horizontal Link Insertion Loss ≤ 2.0 dB at 850nm or 1300nm
- Horizontal Link With CP Insertion Loss ≤ 2.75dB @ 850nm or 1300nm
- Centralized Link Insertion Loss ≤ 3.3 dB @ 850nm or 1300nm based on three connector pairs
- Centralized Plus Open Office CP Link Insertion Loss ≤ 4.1 dB @ 850 or 1300nm based on three connector pairs
- Backbone Link Insertion Loss = Cable Atten + Connector Insertion Loss + Splice Insertion Loss
- Connector Insertion Loss ≤ 0.75 dB
- Splice Insertion Loss ≤ 0.3 dB
- Cable Atten ≤ 3.5 dB/km at 850nm for 62.5/125µm and 50/125µm
- Cable Atten ≤ 1.5 dB/km at 1300nm for 62.5/125µm and 50/125µm
- Cable Atten ≤ 0.5 dB/km for singlemode outside plant cable
- Cable Atten ≤ 1.0 dB/km for singlemode inside plant cable
- '11801:2002 2nd Edition

- Connector Atten ≤ 0.75 dB
- Splice Atten ≤ 0.3 dB
- Cable Atten ≤ 3.5 dB/km at 850nm for 62.5/125µm and 50/125µm
- Cable Atten ≤ 1.5 dB/km at 1300nm for 62.5/125µm and 50/125µm
- Cable Atten ≤ 1.0 dB/km for singlemode (no differentiation between inside and outside plant cables)
Multimode Optical Fiber Modal Bandwidth (Overfilled Launch):
- '568-B Series
- Bandwidth ≥ 160 MHz-km at 850nm for 62.5/125µm
- Bandwidth ≥ 500 MHz-km at 850nm for 50/125µm
- Bandwidth ≥ 500 MHz-km at 1300nm for 62.5/125µm and 50/125µm
- Note:
- Additional performance specifications for 50/125µm cables are provided in ANSI/TIA/EIA-568-B.3-1. These requirements are harmonized with fiber type 'OM3' as specified in ISO/IEC 11801:2002 2nd Edition.
- '11801:2002 2nd Edition
- Bandwidth ≥ 200 MHz-km at 850nm for 62.5/125µm and 50/125µm (OM1)
- Bandwidth ≥ 500 MHz-km @ 850nm for 62.5/125µm and 50/125µm (OM2)
- Bandwidth ≥ 1500 MHz-km @ 850nm for 62.5/125µm and 50/125µm (OM3)
- Bandwidth ≥ 500 MHz-km at 1300nm for 62.5/125µm and 50/125µm (OM1, OM2 and OM3)
- Note:
- Fiber type OM3 specified in ISO/IEC 11801:2002 2nd Edition, requires laser launch bandwidth of 2000 MHz-km at 850nm. This requirement is assured by testing differential modal delay (DMD).





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