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A comprehensive set of questions and answers related to bicsi installer 2: fiber module. It covers various aspects of fiber optic cabling, including transmission, attenuation, fiber types, connectors, and safety practices. Valuable for students and professionals seeking to understand the fundamentals of fiber optic installation and troubleshooting.
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Code โ: Addresses the safety of persons, property and the environment associated with the ITS cabling Installation NEC โ: National electric code Frequency conversion chart โ: One thousand hertz = 1KHz One million Kilohertz = 1 MHz One billion Megahertz = 1 GHz NFPA
โ: National Fire protection association AHJ โ: Authorities having jurisdiction TIA/EIA โ: - Telecommunications Industry association
Attenuation = โ: The decrease in magnitude of transmission signal strength between points, expressed in decibel as the ratio of out put to input signal Attenuation [insertion loss] = โ: Light pulses traveling along fiber are subjected to loss due to absorption or scattering of the light Intrinsic = โ: Controlled by the manufacture/expresses in decibels per-kilometer impacts the signal to reach the receiver with sufficient power Extrinsic = โ: Controlled by the installer/expresses in decibels per-kilometer impacts the signal to reach the receiver with sufficient power Attenuation loss = โ: - Expressed in decibels per kilometers
โ: Optical power referred to as 1 milliwatt of power CWDM = โ: Coarse wave division multiplexing DWDM = โ: Dense wave division multiplexing APC โ: Angle polish connector SCS = โ: Structured cabling system Tight buffered = โ: Zipcord Distribution = โ: - Most popular backbone cable
Multi-mode optical fiber with 50 micron core diameter = โ: Orange Multi-mode optical fiber with 50 micron core diameter laser optimized = โ: Aqua Multi-mode optical fiber with 62.5 micron core diameter = โ: Orange Multi-mode optical fiber with 100 micron core diameter = โ: Orange Dispersion-shifted singlemode = โ: Red Polarization maintaining singlemode optical fiber = โ: Blue Loose tube furcating harness =
Optical fiber bend radius up to four strands at rest = โ: 25 millimeter 1 inch Optical fiber bend radius up to four strands during pull = โ: 51 millimeter 2 inch Intra building bend radius optical fiber during installation = โ: 15 times the outside cable diameter Inter building bend radius optical fiber during installation = โ: 20 times the outside cable diameter Backbone fiber bend radius at rest = โ: 10 times LC Connecter = โ: Latching connector End face geometry, three types are =
โ: - Physical contact [PC]
Core = โ: The center of the optical fiber through which light is transmitted Bracing of wall mounted rack = โ: Must be supported to the:
Buffer = โ: A protective coating applied directly on the fiber Two primary methods by which the end core is illuminated โ: - Coaxial, identifying scratches and fine details
โ: MHZ = Bandwidth of a cable system Megabit = transmission rate GFCI = โ: Ground fault circuit interrupter Cladding = โ: Coating over the core of the fiber that traps light into the core Multi-mode = โ: Uses LED - light emitting diode VCSEL - vertical cavity surface emitting laser Less than 1.2 miles VCSEL many paths Bit-error rate [BER] = โ: The fraction of data bits transmitted that are received in error Back reflection = โ: Light from the cleaved or polished end of a fiber caused by the Difference of refraction
Transmission = โ: Movement of information in the form of electrical or optical Dispersion = โ: The temporal spreading of a pulse in a optical waveguide Caused by modal or chromatic effects Single-mode = โ: 8 to 11 microns Laser more expensive Long haul Attenuation Intrinsic scattering Absorption = โ: 1. Impurities in the glass
โ: 3meters [10feet] In relation to fire safety what does the C in R.A.C.E stand for = โ: Confine Who is responsible for providing the MSDS = โ: Manufacture Most optical light is = โ: Invisible The method of transmission allows signals to be transmitted in either direction but in only one direction at a time = โ: Half-duplex The number of cycles a signal is repeated in a given time frame is called = โ: Frequency The basic unit of digital transmission is a = โ: Bit
the following term quantifies the bandwidth of a cabling system and related to the information handling capability of a given media = โ: Megahertz Most new fiber optical network installations use = โ: 50/125 multimode laser optimized cable Increase in length of an optical fiber cable or the wavelength of the light source will = โ: Decrease in bandwidth Multimode optical fiber attenuation is referenced in = โ: dB/Km, and is affected by the wavelength of the light source What is the term that identifies where the service provider relinquishes circuit responsibility to the costumer = โ: Demarcation point What color termination field identifies "common equipment" = โ: Purple
