Code - Addresses the safety of persons, property and the environment associated with the ITS cabling Installation NEC - National electric code Frequency conversion chart - One thousand hertz = 1KHz One million Kilohertz = 1 MHz One billion Megahe

Code - Addresses the safety of persons, property and the environment associated with the ITS cabling Installation NEC - National electric code Frequency conversion chart - One thousand hertz = 1KHz One million Kilohertz = 1 MHz One billion Megahertz = 1 GHz NFPA - National Fire protection association AHJ - Authorities having jurisdiction TIA/EIA - - Telecommunications Industry association - Electronic industries alliance BICSI - - Building - Industry - Consulting - Service - International Frequency - Optical pulses using cycles per second, 1 unit of hertz = 1 cycle per second 4hz = 4 cycles per second Definition of transmission - The movement of information in the form of electrical or optical signals from one point to another through a transport medium Refraction - Bending of the light as it passes from one medium into another MHz - - Quantifies the bandwidth of a cabling system in a frequency range - Information handling capabilities of the medium Megabits - - transmission rate - Number of bits information that can be transported over the medium(vehicles of the highway) Anatomy of a fiber - - Core - Cladding - Coating Attenuation = - 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] = - Light pulses traveling along fiber are subjected to loss due to absorption or scattering of the light Intrinsic = - Controlled by the manufacture/expresses in decibels per-kilometer impacts the signal to reach the receiver with sufficient power Extrinsic = - Controlled by the installer/expresses in decibels per-kilometer impacts the signal to reach the receiver with sufficient power Attenuation loss = - - Expressed in decibels per kilometers - Impacts the ability of the signal to reach the receiver with sufficient power dBm = - Optical power referred to as 1 milliwatt of power CWDM = - Coarse wave division multiplexing DWDM = - Dense wave division multiplexing APC - Angle polish connector SCS = - Structured cabling system Tight buffered = - Zipcord Distribution = - - Most popular backbone cable - High fiber density - Terminated in patch panels and wall mounted box - Breakout cable Loose tube = - Outdoor Tight buffer breakout = - Indoor Zip-Cord = - Short runs, patch cords, laid in cable trays