Storage (viz. , buffer storage) in the signaling link control for signal units not yet transmitted. [After T1.110-1987]

See channel.

1. The ratio of the transmitted field strength to the incident field strength of an electromagnetic wave when it is incident upon an interface surface between media with two different refractive indices.
2. In a transmission line, the ratio of the amplitude of the complex transmitted wave to that of the incident wave at a discontinuity in the line.
3.… (Read More →)

See control character.

A network protocol that controls host-to-host transmissions over packet-switched communication networks.

A data structure, beginning and ending with delimiters, that consists of fields predetermined by a protocol for the transmission of user data and control data.

At a specified point in a telecommunications system, the power that is measured when a standard test signal, e.g., 0 dBm or -16 dBm at 1000 Hz, is transmitted from a corresponding reference point.
Note: The transmission level is usually expressed in dBm.

In a telecommunications system, a test point, i.e., a point where a signal may be inserted or measured, and for which the nominal power of a test signal is specified.
Note 1: In practice, the abbreviation, TLP, is usually used, and it is modified by the nominal level for the point in question. For example, where the nominal level is… (Read More →)

The material medium or structure that forms all or part of a path from one place to another for directing the transmission of energy, such as electric currents, magnetic fields, acoustic waves, or electromagnetic waves.
Note: Examples of transmission lines include wires, optical fibers, coaxial cables, rectangular closed waveguides, and dielectric slabs.

The decrease in power that occurs during transmission from one point to another.
Note: Transmission loss is usually expressed in dB.