Glossary

An identifier that uniquely identifies nodes or network segments on a network.

An attenuator in which the level of attenuation is varied with an internal adjustment. Also known as variable attenuator.

With respect to structured cabling, the procedures and standards used to accurately keep track of the various circuits and connections, as well as records pertaining to them. The ANSI/TIA/EIA-606 Administration Standard for Telecommunications Infrastructure of Commercial Buildings defines specifications for this purpose.

Developed by Bell Communications Research, a telephone network architecture that separates the service logic from the switching equipment. This allows the rapid deployment of new services with major equipment upgrades.

Telecommunications cable installed on aerial supporting structures such as poles, towers, sides of buildings, and other structures.

Above Ground Level is antenna height from ground level to the bottom of the antenna.

Polishing a connector tip in a figure-eight motion without using a backing for the polishing film.

Antenna Interface Standards Group http://www.aisg.org.uk/

A popular brand of medicated wipes premoistened with alcohol.

The crosstalk noise experienced by two or more adjacent twisted pair cables; measured in the lab by performing a 6-around-one test where six disturber cables impose crosstalk on the cable in the center (disturbed cable).

An optical fiber cable with dielectric strength elements that can span long distances between supports without the aid of other strength elements.

An electric current that cyclically reverses polarity.

A means of encoding information. ASCII is the method used by Microsoft to encode characters in text files in their operating systems.

Standard measuring gauge for nonferrous conductors (i.e., noniron and nonsteel). Gauge is a measure of the diameter of the conductor. The higher the AWG number, the smaller the diameter of the wire. See Chapter 1 for more information.

A unit of measure of electrical current.