Glossary

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1000Base LX
Gigabit Ethernet transmitted over fiber using long wave laser transmitters
1000Base SX
Gigabit Ethernet transmitted over fiber using short wave laser transmitters
1000Base T
Gigabit Ethernet over twisted pair.
100Base FX
100 Mbps Fast Ethernet system based on 4B/5B signal encoding transmitted over fiber optic cable.
100Base T
Term used for the entire 100 Mbps Fast Ethernet system, including both twisted-pair and fiber optic media types.
10Base F
10 Mbps Ethernet system based on Manchester signal encoding transmitted over fiber optic cable.
10Base T
10 Mbps Ethernet system based on Manchester signal encoding transmitted over Category 3 or better twisted-pair cable
10Base2
10 Mbps Ethernet system based on Manchester signal encoding transmitted over thin coaxial cable. Also called Thin Wire and...
10Base5
10 Mbps Ethernet system based on Manchester signal encoding transmitted over thick coaxial cable. Also called Thick Net
10Gig Fiber Optic Patch Cord
Laser-optimized fiber supports 10 gigabit/second transmission distances of 300 meters or more and is roughly 3 times faster then...
38999
The 38999 is a cylindrical fiber optic connector for military applications. The 38999 is often used as an abbreviation...
48 Strand Fiber Optic Fiber
Strand fiber is a single strand of glass (optical fiber) used to send data in both directions. Working with...
802 1
IEEE Working Group for High Level Interfaces, Network Management, Inter-networking, and other issues common across LAN technologies
802 3
IEEE Working Group for Carrier Sense Multiple Access/Carrier Detect Local Area Networks.
802.3 Network
A 10 Mb/s CSMA/CD bus-based network
802.5 Network
A token-passing ring network operating at 4 Mb/s or 16 Mb/s.
8B10B Encoding
A signal modulation scheme in which eight bits are encoded in a 10-bit word to ensure that too many...
Abaxial Spherical Aberration
This type of aberration occurs when a patch of light is formed on points outside of the lens axis....
Abbe Condenser
This condenser consists of two lenses that collect and direct light onto a predetermined object. It can achieve high...
Abbe Constant
The ratio of an optical medium's refractivity to its dispersion. It is the reciprocal of dispersive power.
Abbe Illumination
A form of illumination where the source is imaged directly onto the object being viewed or projected. This requires...
Abbe Prism
A type of roof prism with perpendicular end faces that can invert an image when inserted between the object...
Abbe Refractometer
An optical instrument used to measure the of index of refraction of an unknown sample of optical glass. Designed...
Abbe Sine Condition
A condition that must be met by any spherically corrected lens if it is to be free from coma...
Abbe-Porro Prism
A compact version of the traditional Porro prism used in binoculars.