Call Us +44 0207 378 1400

clarity and precision

Glossary

Search for glossary terms (regular expression allowed)
Term Main definition
SRL Structural return loss

A measurement of the impedance uniformity of a cable. It measures energy reflected due to structural variations in the cable. The higher the SRL number, the better the performance; this means more uniformity and lower reflections.

Hits - 1387
ST connector
A fiber-optic connector with a bayonet housing; it was developed by AT&T but is not in favor as much as SC or FC connectors. It is used with older Ethernet 10Base-FL and fiber-optic inter-repeater links (FIORLs).
Hits - 1107
Stabilized light source
An LED or laser diode that emits light with a controlled and constant spectral width, central wavelength, and peak power with respect to time and temperature.
Hits - 1081
Stamped and formed

Stamp and Form Contact - The contact pin is formed into its shape from the sheet of material by using a press tool.

Hits - 1025
Standards
Mutually agreed-upon principles of protocol or procedure. Standards are set by committees working under various trade and international organizations.
Hits - 2568
Star coupler
A fiber-optic coupler in which power at any input port is distributed to all output ports. Star couplers may have up to 64 input and output ports.
Hits - 1176
Star network
A network in which all stations are connected through a single point such as a hub.
Hits - 1092
Star topology
(1) A method of cabling each telecommunications outlet/ connector directly to a cross-connect in a horizontal cabling subsystem. (2) A method of cabling each crossconnect to the main cross-connect in a backbone cabling subsystem. (3) A topology in which each outlet/connector is wired directly to the hub or distribution device.
Hits - 1533
Static charge
An electrical charge that is bound to an object.
Hits - 1117
Static load
Load such as tension or pressure that remains constant over time, such as the weight of a fiber-optic cable in a vertical run.
Hits - 1031
Station
A unique, addressable device on a network.
Hits - 2177
Stay cord
A component of a cable, usually of high tensile strength, used to anchor the cable ends at their points of termination and keep any pull on the cable from being transferred to the electrical conductors.
Hits - 1234
Step index fiber
An optical fiber cable, usually multimode, that has a uniform refractive index in the core with a sharp decrease in index at the core/cladding interface. The light is reflected down the path of the fiber rather than refracted as in graded-index fibers. Step-index multimode fibers generally have lower bandwidths than graded-index multimode fibers.
Hits - 1135
Step insulated
A process of applying insulation to a cable in two layers. Typically used in shielded networking cables so that the outer layer of insulation can be removed and the remaining conductor and insulation can be terminated in a connector.
Hits - 1090
Step-index single-mode fiber
A fiber with a small core that is capable of carrying light in only one mode. Sometimes referred to as single-mode optical fiber cable.
Hits - 1049