Glossar

OS1 and OS2

Mode: Singlemode.

Bi-Directional, only one line/ cable core needed.

"Only one side can sent at once", used for longer distances.

TODO

OM1/ OM2/ OM3/ OM4/ OM5

Mode: Multimode.

"Two lines/ cable cores each for 'one way' of data", used for "short" distances.

TODO

Simplex vs Duplex fiber

• Simplex cable are consisting of a single cable strand.
• Duplex cable are consisting of two cable strands ("glued" together).

Singlemode vs Multimode

• Singlemode only allows one light mode to pass through at a time.
  • Wikipedia
  • Advantages:
    • Much further distances (e.g., OS2 up to 10 kilometers for 10G).
    • Good for WAN network "applications".
  • Disadvantages:
    • Higher cost (depending on where you buy, up to 6-times more expensive).
• Multimode have shorter reach though are because of their price better suited, for, e.g., in datacenter usage.
  • Wikipedia
  • Advantages:
    • Lower cost (in comparison with Singlemode).
    • Compatible with many different data protocols, e.g., ethernet.
  • Disadvantages:
    • Nowhere near the distance of Singlemode (e.g., OM4 10G distance is "only" up to 550 meters).