AND ANSWERS RATED A+
✔✔Speed of light (in a vacuum) - ✔✔300,000 km/s 186,000 mi/s
✔✔Index of refraction in water - ✔✔1.3 (225,000 km/s)
✔✔Index of refraction in glass - ✔✔1.5 (200,000 km/s)
✔✔Nm - ✔✔Nanometers
✔✔Single mode wavelengths - ✔✔Typically 1310nm & 1550nm
✔✔Multimode wave links - ✔✔Typically 850nm (most popular) & 1300nm
✔✔Single mode course size - ✔✔9 µm core (micrometers)
✔✔Multi mode courses size - ✔✔62.5 µm or 50 µm (micrometers)
✔✔Single mode and multi mode cladding size - ✔✔125 µm (micrometers)
✔✔DB loss per kilometer in 1310 (singlemode) wavelength - ✔✔0.35
✔✔DB loss per kilometer in 1550 (Singlemode) wavelength - ✔✔0.22
✔✔DB loss per kilometer in 850 (Multimode) wavelength - ✔✔3.0
✔✔DB loss per kilometer in 1300 (Multimode) wavelength - ✔✔1.0
✔✔DB loss per splice - ✔✔.01 (typically)
✔✔DB loss per connector - ✔✔.75 (typically)
,✔✔Acrylic buffer - ✔✔The layer around the cladding that is stripped off
✔✔Kevlar - ✔✔A strong synthetic material used to protective fiber cabling
✔✔OS1 & OS2 single mode - ✔✔Yellow
✔✔OM1 & OM2 Multimode - ✔✔Orange
✔✔OM3 Multimode - ✔✔Aqua
✔✔OM4 Multimode (in North America) - ✔✔Aqua
✔✔OM4 Multimode (in Europe) - ✔✔Purple
✔✔OM5 multimode - ✔✔Green
✔✔All outdoor jackets - ✔✔Black
✔✔OTDR - ✔✔(optical time domain reflectometer) Detects the location of a fault in a
fiber cable by sending light down the fiber-optic cable and measuring the time required
for the light to bounce back from the cable fault.
✔✔Number one reason for fiber failure - ✔✔Dirty fiber
✔✔Mode - ✔✔Describes the path of optical signals as it travels through the core
✔✔AHJ - ✔✔Authority having jurisdiction (inspector)
✔✔Codes - ✔✔Minimal standards and regulations for which installation is performed for
safety
✔✔ANSI - ✔✔American national standards institute (safety guidelines)
✔✔ICT - ✔✔Information and communication technology
✔✔IEC - ✔✔International electrotechnical commission
✔✔IEEE - ✔✔Institute of Electrical and Electronics Engineers
✔✔ISO - ✔✔International organization for standardization
✔✔NEC - ✔✔National Electric Code
,✔✔NFPA - ✔✔National Fire Protection Association
✔✔Regulation - ✔✔And authority over all that controls are governs behavior
✔✔TIA - ✔✔Telecommunications industry Association
✔✔Telecommunication spaces - ✔✔A housing for telecommunication equipment and
termination
✔✔Telecommunication pathways - ✔✔A pathway to carry telecommunications from
house to house
✔✔AP - ✔✔Access provider A company that provides the path back to the service
provider (fiber drops to a house back to the distribution center)
✔✔Conduit - ✔✔A pathway Usually circular metal or plastic
✔✔Conduit run - ✔✔Multiple sections of conduit
✔✔demarcation point - ✔✔A point where the operational control or ownership changes
✔✔EF - ✔✔Entrance facility (where service cables come into a building)
✔✔EMT - ✔✔Electrical metallic tubing
✔✔ENT - ✔✔Electrical nonmetallic tubing
✔✔ER - ✔✔Equipment room
✔✔FMT - ✔✔Flexible metallic tubing
✔✔Home run - ✔✔A Cabling pathway or cable installed without a splice or intermediate
termination point between active electronics
✔✔IMC - ✔✔Intermediate metal conduit
✔✔RMC - ✔✔Rigid metal conduit
✔✔SCS - ✔✔Structured cabling system (The entire body for communications in a
building)
, ✔✔SP - ✔✔Service provider (The company back at the distribution center that connects
you to the Internet)
✔✔TE - ✔✔Telecommunications enclosure (Air gap box)
✔✔TR - ✔✔Telecommunications room
✔✔What is the difference between an ER and a TR - ✔✔An ER typically serves A much
larger area like entire building while ATR typically serves smaller areas like one floor
✔✔HC - ✔✔Horizontal cross connect A group of connectors (patch panel)
✔✔IC - ✔✔Intermediate cross connect The connection point between backbone cable
✔✔LAN - ✔✔Local area network
✔✔MC - ✔✔Main Cross connect located in the main ER
✔✔Network topology - ✔✔The arrangement of various elements of a computer network
✔✔PBX - ✔✔Private branch exchange
✔✔Work area - ✔✔A space were occupants interact with telecommunications
equipment
✔✔CPR - ✔✔Cardiopulmonary resuscitation
✔✔first aid - ✔✔emergency care treatment given to an ill or injured person before
regular medical aid
✔✔Hazmat - ✔✔Hazardous material
✔✔OSHA - ✔✔Occupational safety and health administration
✔✔PPE - ✔✔personal protective equipment
✔✔SDS - ✔✔Safety data sheet
✔✔AFF - ✔✔Above finish floor
✔✔Inner duct - ✔✔A nonmetallic duck placed within a larger pathway