- 行业: 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.
In public switched networks, pertaining to circuits that span large distances, such as the circuits in inter-LATA, interstate, and international communications. 2. In the military community, communications among users on a national or worldwide basis. Note 1: Compared to tactical communications, long-haul communications are characterized by (a) higher levels of users, such as the National Command Authority, (b) more stringent performance requirements, such as higher quality circuits, (c) longer distances between users, including world wide distances, (d) higher traffic volumes and densities, (e) larger switches and trunk cross sections, and (f) fixed and recoverable assets. Note 2: "Long-haul communications" usually pertains to the U. S. Defense Communications System.
Industry:Telecommunications
In public key infrastructure (PKI) systems, the procedure allowing the receiver of a public key to verify that it conforms with the requirements for such a key; this procedure is used to counter certain types of attacks against the security of the PKI system. Synonym public key validation.
Industry:Telecommunications
In programming languages, a language construct that represents a set of declarations or a step in a sequence of actions. 2. In computer programming, a symbol string or other arrangement of symbols. 3. In computer programming, a meaningful expression or generalized instruction, represented in a source language.
Industry:Telecommunications
In programming languages, a keyword whose definition is fixed by the programming language and which cannot be changed by the user. Note: In Ada® and COBOL all keywords are reserved words, while Fortran has no reserved words.
Industry:Telecommunications
In phase-encoded recording, a magnetic flux reversal written at the nominal midpoint between successive "1" bits, or between successive "0" bits, to establish proper polarity.
Industry:Telecommunications
In phase modulation, the maximum difference between the instantaneous phase angle of the modulated wave and the phase angle of the unmodulated carrier. Note: For a sinusoidal modulating wave, the phase deviation, expressed in radians, is equal to the modulation index.
Industry:Telecommunications
In personal communications service, interfacing with a network access point by means of a standardized air interface protocol without the use of a hardwired connection to the network.
Industry:Telecommunications
In personal communications service, a lightweight, small, portable terminal that provides the capability for the user to be either stationary or in motion while accessing and using telecommunication services. Informal synonym brick.
Industry:Telecommunications
In personal communications service, a facility that (a) supports access-independent call control/service control, and connection control (switching) functions, and (b) is responsible for interconnection of access and network systems to support end-to-end services. Note 1: The PCS switching center represents a collection of one or more network elements. Note 2: The term "center" does not imply a physical location.
Industry:Telecommunications
In personal communications service, a collection of facilities that provides some combination of personal mobility, terminal mobility, and service profile management. Note: As used here, "facilities" includes hardware, software, and network components such as transmission facilities, switching facilities, signaling facilities, and databases.
Industry:Telecommunications
