- 産業: Telecommunications
- Number of terms: 29235
- Number of blossaries: 0
- Company Profile:
ATIS is the leading technical planning and standards development organization committed to the rapid development of global, market-driven standards for the information, entertainment and communications industry.
A pure transmission capability over a communication path that is virtually transparent in terms of its interaction with customer-supplied information. 2. The offering of transmission capacity between two or more points suitable for a user's transmission needs and subject only to the technical parameters of fidelity and distortion criteria, or other conditioning.
Industry:Telecommunications
A quadded cable with four conductors. Synonym star quadded cable.
Industry:Telecommunications
A quadded cable with four conductors. Synonym star quadded cable.
Industry:Telecommunications
A quality that applies to materiel or systems: (a) possessing like and interchangeable characteristics enabling each to be utilized, or operated and maintained by personnel trained on the others without additional specialized training; (b) having interchangeable repair parts and/or components; (c) applying to consumable items interchangeably equivalent without adjustment. 2. Pertaining to equipment or systems that have the quality of one entity possessing like and interchangeable parts with another equipment or system entity. 3. Pertaining to system design in which a given part can be used in more than one place in the system, i.e., subsystems and components have parts in common. Note: Examples of commonality include the use of a firing pin that fits in many different weapons and the use of a light source that fits in many different types of fiber optic transmitters.
Industry:Telecommunications
A quality, usually quantified by a numerical value, which quality characterizes a particular aspect, capability, or attribute of a system. Note: Examples of performance parameters are peg count and mean time between failures.
Industry:Telecommunications
A quantification of variability in cell delay for an asynchronous transfer mode (ATM) layer connection.
Industry:Telecommunications
A quantitative representation in resistance units of the spectral density of a noise-voltage generator, given by Rn = (Wn) / (kT0,) where Wn is the spectral density, k is Boltzmann's constant, T0 is the standard noise temperature (290 K,) and kT0 = 4. 00 × 10-21 watt-seconds. Note: The equivalent noise resistance in terms of the mean-square noise-generator voltage, e2, within a frequency increment, f, is given by Rn = e2/ (4kT0f. )
Industry:Telecommunications
A quantum of acoustic energy, the level of which is a function of the frequency of the acoustic wave. Note: Phonons in acoustics are analogous to photons in electromagnetics. The energy of a phonon is usually less than 0. 1 eV (electron-volt) and thus is one or two orders of magnitude less than that of a photon. When photons and phonons interact in semiconductors used in communications systems, undesirable system behavior can occur.
Industry:Telecommunications
A queue in which the contents may be changed by adding or removing items at either end.
Industry:Telecommunications
A queuing discipline in which entities in a queue leave in the reverse order of the sequence in which they arrive. Note: Service, when available, is offered to the entity that has been in the LIFO queue the shortest time.
Industry:Telecommunications
