Glossary

The power-sum measurement of alien crosstalk in the far end (away from the transmitter); the result from this test is used with the attenuation to calculate power-sum alien attenuation-to-crosstalk ratio (far end) (PSAACRF), a requirement of ANSI/TIA-568-C.2 for Category 6A cables.

The power-sum measurement of alien crosstalk in the near end (at the transmitter); a newly established requirement in ANSI/TIA-568-C.2 for Category 6A cables.

FULL Master - For a direct line from the telephone company and not via the office telephone exchange, PABX.

The basic phone service provided by the phone company. See also plain old telephone service.

A network established and operated for the specific purpose of providing data transmission services to the public. See also public switched network.

A network provided by a common carrier that provides circuit switching between public users, such as the public telephone network, telex, Sprint

In fiber optics, metal disc that holds a connector in the proper position against an abrasive for polishing the connector endface.

The pulling force that can be applied to a cable without damaging a cable or affecting the specified characteristics of the cable. Also called pull tension.

A string that is tied to a cable and is used to pull cables through conduits or over racks. Similar to fish tape.

A current or voltage that changes abruptly from one value to another and back to the original value in a finite length of time.

The dispersion of pulses as they travel along an optical fiber.

The dispersion of an optical signal with time as it propagates through an optical fiber.

A generic name for any cross-connect block where the individual wires in UTP are placed into a terminal groove and

A broad class of polymers that are noted for good abrasion and solvent resistance. Not as common as PVC (polyvinyl chloride).

Technology used by frame relay (as well as other technologies like X.25 and ATM) that allows virtual data circuits to be set up between the sender and receiver over a packet-switched network.