Glossary:

ATIS Telecom Glossary

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Select a term name to open its entry and any media references. Longer definitions end with a “Read More” link.

spiral wrap

A molded, insulated plastic product in the form of a helix, used to contain or dress electrical wiring, e.g., to create a wiring harness from a number of insulated wires.

spiral-four cable

A quadded cable with four conductors. Synonym star quadded cable.

splice

1. To join, permanently, physical media that conduct or transmit power or a communication signal.
2. A device that so joins conducting or transmitting media.
3. The completed yyjoint.

splice closure

A usually weatherproof encasement, commonly made of tough plastic, that envelops the exposed area between spliced cables, i.e., where the jackets have been removed to expose the individual transmission media, optical or metallic, to be joined.
Note 1: The closure usually contains some device or means to maintain continuity of the tensile strength members of the cables involved, and also… (Read More →)

splice loss

In fiber optic systems, any loss of optical power at a splice.
Note: A practical splice, of physically realizable fibers, has losses attributable to a number of mechanisms, some of which are intrinsic to the fibers, and some of which are intrinsic to the method or device being used to join them. [After FAA]

splice organizer

In optical communication, a device that facilitates the splicing or breaking out of fiber optic cables.
Note: The organizer provides means to separate and secure individual buffer tubes, fibers, and/or pigtails. It also provides means to secure mechanical splices or protective sleeves used in connection with fusion splices, and has means to contain the slack fiber that remains after the… (Read More →)

split

1. With respect to a signal, to divert a portion of it, or divide it, into usually predetermined or specified proportions.
2. In INFOSEC, a secret random number that is a component of the final working key. [After X9.69]
3. An action that creates a private communication between the served user and a conferee. The private communication is a normal… (Read More →)

split homing

The connection of a terminal facility to more than one switching center by separate access lines, each of which has a separate directory number.

split knowledge

1. In secure communications, a condition under which two or more entities separately have key components that, individually, convey no knowledge of the resultant cryptographic key. [After X9.24]
2. Separation of data or information into two or more parts, each part constantly kept under control of separate authorized individuals or teams so that no one individual or team will know… (Read More →)

split screen

On a display device, display space that has been divided into two or more areas, so that each area can display different portions of the same file or portions of different files.
Note 1: The split screen excludes the data lying between the portions of the file or files being displayed and includes the desired data in the two or… (Read More →)

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