Call Us +44 0207 378 1400

clarity and precision


Search for glossary terms (regular expression allowed)
Term Main definition
Intersymbol loss (ISL)
Channel loss resulting from intersymbol interference.
Hits - 1122
Intrabuilding backbone
Telecommunications cables that are part of the building subsystem that connect one telecommunications closet to another or a telecommunications room to the equipment room.
Hits - 1199
Intrinsic factors
When describing an optical fiber connection, factors contributing to attenuation that are determined by the condition of the optical fiber itself. See also extrinsic loss.
Hits - 1193
Intrinsic joint loss
The theoretical minimum loss that a given joint or device will have as a function of its nature. Intrinsic joint loss may also be used to describe the given theoretical minimum loss that a splice joint, coupler, or splitter may achieve.
Hits - 1181
Intrinsic performance factor (IPF)
Performance specification whereby total optical channel performance is specified, rather than performance of individual components.
Hits - 1214
Intrinsic splice loss
The optical signal loss arising from differences in the fibers being spliced.
Hits - 1161
An intumescent is a substance that swells as a result of heat exposure, thus increasing in volume and decreasing in density.
Hits - 1192
A device that inverts the phase of a signal.
Hits - 1587
Ion exchange techniques
A method for making and doping glass by ion exchange.
Hits - 1183
The measure of power density at a surface upon which radiation is directed. The normal unit is watts per square centimeter.
Hits - 1692
ISDN terminal adapter
The device used on ISDN networks to connect a local network or single machine to an ISDN network (or any non-ISDN compliant device). The ISDN terminal adapter provides line power and translates data from the LAN or individual computer for transmission on the ISDN line.
Hits - 1273
Signals that are dependent on some uniform timing or carry their own timing information embedded as part of the signal.
Hits - 1198
Isolated ground
A separate ground conductor that is insulated from the equipment or building ground.
Hits - 1182
The ability of a circuit or component to reject interference.
Hits - 1281
In fiber optics, a device that permits only forward transmission of light and blocks any reflected light.
Hits - 1247