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Fibers

Multimode MM

  • OM1
  • OM2
  • OM3
  • OM4

Single Mode SM

  • OS1 ITU-T G.652A or ITU-T G.652B
    • tight-buffered construction, which is usually used for indoor applications, such as campus or data center
    • max att 1.0 db/km
    • max distance 1km
    • cheaper
  • OS2
    • are only compliant with ITU-T G.652C or ITU-T G.652D standards.
    • which means OS2 is explicitly applied to the low-water-peak fibers. These low-water-peak fibers are usually used for CWDM (Coarse Wavelength Division Multiplexing) applications.
    • is loose-tube design
    • appropriate for outdoor cases like street, underground and burial
    • max att 0.4db/km.
    • max distance 10 km

Connector

  • SC - bigger (more popular, older)
  • LC - smaller, half size of SC (Lucent, less popular, license fees)