Glossary
Term | Main definition |
---|---|
Institute of Electrical and Electronics Engineers (IEEE) |
A publishing and standards-making body responsible
for many standards used in LANs, including the 802
series of standards.
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Insulation |
A material with good dielectric properties that is used
to separate electrical components close to one another,
such as cable conductors and circuit components. Having
good dielectric properties means that the material is nonconductive
to the flow of electrical current. In the case of
copper communication cables, good dielectric properties
also refer to enhanced signal-transfer properties.
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Insulation displacement connection (IDC) |
A type of wire termination in which the wire is punched
down into a metal holder that cuts into the insulation
wire and makes contact with the conductor, thus causing
the electrical connection to be made. These connectors
are found on 66-blocks, 110-blocks, and telecommunications
outlets.
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Integrated optical circuit |
An optical circuit that is used for coupling between
optoelectronic devices and providing signal processing
functions. It is composed of both active and passive
components.
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Integrated optics |
Optical devices that perform two or more functions and
are integrated on a single substrate; analogous to integrated
electronic circuits.
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Integrated optoelectronics |
Similar in concept to integrated optics except that one of
the integrated devices on the semiconductor chip is optical
and the other electronic.
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Integrated Services Digital Network (ISDN) |
A telecommunications standard that is used to digitally
send voice, data, and video signals over the same lines.
This is a network in which a single digital bit stream can
carry a great variety of services. For the Internet it serves
much better than analog systems on POTS (plain old
telephone service), which is limited to 53Kbps. See also
basic rate interface and primary rate interface.
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Integration Contractor | Contractor responsible for the integration of a Node B / BTS. Often the responsibility of NSN or Huawei, fulfilled by one of their contractors.
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Intelligence |
A signal that is transmitted by imposing it on a carrier
such as a beam of light to change the amplitude of the
carrier.
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Intelligent hub |
A hub that performs bridging, routing, or switching
functions. Intelligent hubs are found in collapsed backbone
environments.
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Intelligent network |
A network that is capable of carrying overhead signaling
information and services.
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Intensity |
The square of the electric field amplitude of a light wave.
Intensity is proportional to irradiance and may be used
in place of that term if relative values are considered.
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Inter-repeater link (fiber-optic) |
Defined in IEEE 802.3 and implemented over two fiber
links, transmit and receive, this medium may be up to
500m and 1 kilometer long depending on the number of
repeaters in the network.
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Interbuilding backbone |
A telecommunications cable that is part of the campus
subsystem that connects one building to another.
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Interconnect |
A circuit administration point, other than a cross-connect
or an information outlet, that provides capability for routing
and rerouting circuits. It does not use patch cords or
jumper wires and is typically a jack-and-plug device that
is used in smaller distribution arrangements or connects
circuits in large cables to those in smaller cables.
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