Absorption: The amount of light lost in transmission through the optical fibre over distance
Adaptor: Can be simplex or duplex, connecting two different optical fibre connectors together
Attenuation: Measured as the amount of power lost in dB across a known length of optical fibre
Attenuator: Reduces the amount of power in dB across between devices
Back Reflection: The amount of light reflected at the faces of two fibre optic connectors in -dB
Bandwidth: The operating frequency achievable across a fibre optic link in nM
Connector: The junction device between two optical fibre and/or device
Coupler: Can be simplex or duplex, connecting two similar types of connector
Crossed Cable: Provides ODD Polarity of the optical fibre link
Duplex Cable: Two separate optical fibres joined along the length with the outer jacket material
Duplex Connector: Two fibre connectors joined together
Fusion Splice: The method of permanently connecting (glass fusion) two separate optical fibres
Gelly Filled Cables: Silicon Gelly Filled fibre, used to prevent moisture penetration
GBIC: Gigabit Interface Converter
Insertion Loss: The attenuation caused by the insertion of a device or cable
Loose Tube Cable: A hollow sleeve containing multiple single optical fibres
Loss Budget: The amount of power that can be lost in dB before connectivity is lost
Low Smoke Zero Halogen: European Standard for Smoke Emission of Optical Fibre
Jack: The female receptacle - usually found on equipment.
Mandrel: A fibre wrapping device used to cause attenuation within a fibre cable.
Mechanical Splice: A mechanical means of connecting two fibres.
Multimode: A type of fibre optic cable where the core diameter is much larger than the wavelength of light transmitted. Two common multimode fibre types are 50/125 and 62.5/125.
Plenum Cable: American Standard for Smoke Emission of Optical fibre
Premise Distribution Riser: Indoor multiple 4 or more core tight buffered optical fibre
Return Loss: Launched Power lost across the length of cable and returned. Measured in +dB
Scattering: Internal glass characteristic such as glass molecules can cause light dispersal
Simplex Cable: A single core fibre optic cable in multimode or single mode
Straight cable: Provides EVEN Polarity of the optical fibre link
Trunk cable: Cable constructed with more than four optical fibres
Tight Buffered Cable: Kevlar is used to protect the fibre and provide end to end tensile strength
Single mode: A type of fibre with a small core that allows only one mode of light to propagate.
Splice: The mechanical or welded together fusion of two optical fibres
Termination: The means to place an optical connector onto a fibre
Dispersion: Separation of a wavelength into spectral components with different wave lengths.
Wavelength: The wavelength is the distance between repeating units of a wave pattern in nM
Differential Mode Delay: When the multiple modes of light become unsynchronised causing dispersion of the light due to molecular interference, thus segregating the signal..
Dark Fibre: Fibre which has been laid but has not active optical fibre device attached
Wavelength-division multiplexing (WDM): Multiplexes multiple carrier optical signals across a single optical fibre link using different wavelengths and colour spectrum light to carry multiple signals
Zip Cord: Another name for duplex fibre, can be separated to form two simplex cables
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