OTDR Series e-Manual, D07-00-076P-RevC00 Page 36 of 107
6.6 Fiber Cables and Fiber Patchcords
6.6.1 Fiber Cable
Styles of Fiber Optic Cable vary in outer appearance, materials, application, features, and
benefits. In OTDR applications, you will regularly come across the following types:
Bare Fiber
• Usually Spooled in 25km spools
• 250 to 400um acolyte buffer / polyimide
• PM Light Sensitive Bare
• Fiber Adaptor is a useful accessory and provides quick connection to check fiber
length/continuity
PVC or Plenum Jacketed
• Many colors that mean very little
• Used mostly in internal applications
900um
• Patchcords
• Simplex (single fiber) or Duplex (two fibers) construction
• Singlemode or Multimode
• Pig tails
• Outer Diameter is usually 1.6mm, 2.0mm, and 3.0mm
• Duplex versions - Zip cord with outer diameters of 1.6mm, 2.0mm, 3.0mm
Break Out
• Both Multimode and Singlemode
• Indoor / Outdoor applications
• 1.6mm, 2.0mm, and 3.0mm sub units
• 2, 4, 6, 8, 12, 24, 48, 72 or greater fiber counts Outer Jacket can be of a variety of
materials
• Terminated with all styles of connectors
• Often field terminated
Distribution
• Both Multimode and Singlemode
• Indoor / Outdoor applications
• 900um sub units
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