QUESTIONS AND SOLUTIONS RATED A+
✔✔Optical fiber bend radius up to four strands at rest = - ✔✔25 millimeter 1 inch
✔✔Optical fiber bend radius up to four strands during pull = - ✔✔51 millimeter 2 inch
✔✔Intra building bend radius optical fiber during installation = - ✔✔15 times the outside
cable diameter
✔✔Inter building bend radius optical fiber during installation = - ✔✔20 times the outside
cable diameter
✔✔Backbone fiber bend radius at rest = - ✔✔10 times
✔✔LC Connecter = - ✔✔Latching connector
✔✔End face geometry, three types are = - ✔✔- Physical contact [PC]
- Ultra physical contact [UPC]
- Angled polish contact [APC]
✔✔Field terminations have three types = - ✔✔- Scribe and cleave
- Cleave and secure
- Slice on
✔✔Methods to terminate optical fiber = - ✔✔- Heat cured epoxy termination
- Heat activated adhesive
- Ultraviolet [UV] light cured termination
- Crimp termination
- Cleave and secure
- Anaerobic termination
✔✔Ways to test fiber = - ✔✔5 ways
✔✔OFSTP -14/OFSTP -7 are = - ✔✔Double ended tests for testing installed cable
plants
✔✔Fiber test method 1 = - ✔✔Cable reference
✔✔Cable reference = - ✔✔Does not work with all cable plants
✔✔When connectors do not match = - ✔✔Use 2 cable reference
, ✔✔Insertion loss - ✔✔The signal loss resulting from the insertion of component , or link
or channel [splice], between a transmitter and receiver [often referred to as a
attenuation] =
✔✔Wavelength = - ✔✔- Distance between two corresponding points on a wave
- Measured in nanometers nm
✔✔Core = - ✔✔The center of the optical fiber through which light is transmitted
✔✔Bracing of wall mounted rack = - ✔✔Must be supported to the:
- Wall
- Cable tray
- Ladder rack
✔✔Bandwidth = - ✔✔A measure of the amount of information on optical fiber is capable
of transporting
- Described in terms of megahertz - kilometer
- Increase length or the wavelength of the light source decreases the bandwidth
✔✔Modal dispersion = - ✔✔The temporal speeding of a pulse in a optical waveguide
✔✔Chromatic dispersion = - ✔✔Spreading of pulse in a optical cable
✔✔Buffer = - ✔✔A protective coating applied directly on the fiber
✔✔Two primary methods by which the end core is illuminated - ✔✔- Coaxial, identifying
scratches and fine details
- Oblique, clean view of core condition and cleanliness
✔✔Index of refraction = - ✔✔Increases the speed of light in that medium decreases
✔✔Two types of optical fiber scopes = - ✔✔- Direct-view microscope
- Video microscope
✔✔Two types of connection processes for optical fiber connections are = - ✔✔- Scribe
and polish
- Cleave and secure
✔✔Maximum splice loss mechanical of fusion splice = - ✔✔- Shall not exceed 3dB
regardless of the method
[ Mechanical or fusion ]
- Fusion will be no less than 1dB