- 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 generic term for a single-purpose device having limited functionality. Note: A black box is usually represented in schematic drawings as a geometric figure, possibly with defined connector (s,) but no details with respect to the type or number of internal components that enable it to perform its defined task.
Industry:Telecommunications
A generic term for the functions associated with accessing one or more channels within a digital signal for the purpose of testing. DTAU functionality may be embedded within a network element (NE) or may consist of stand-alone equipment.
Industry:Telecommunications
A generic term referring to a sealed authenticator system, permissive action link, coded switch system, positive enable system, or nuclear command and control documents, material, or devices.
Industry:Telecommunications
A generic term that includes both communications security and electronics security.
Industry:Telecommunications
A geographic area established for the provisioning and administration of telecommunications service. An access service area encompasses one or more exchanges, which are grouped in access service areas to serve common social, economic, and other purposes. Contrast with LATA.
Industry:Telecommunications
A geographic area served by one or more central offices within which local telephone service is furnished under regulation.
Industry:Telecommunications
A geographical area within the emergency service serving area in which all callers are served by the same set of emergency service agencies.
Industry:Telecommunications
A geographically specified point used for determining mileage-dependent rates for PSTN calls. It is defined by a set of Vertical & Horizontal coordinates.
Industry:Telecommunications
A geometric representation of a lightwave by a line normal to the electromagnetic wavefront; i.e., in the direction of propagation of the wave.
Industry:Telecommunications
A geosynchronous satellite whose circular and direct orbit lies in the plane of the Earth's equator and which thus remains fixed relative to the Earth; by extension, a satellite that remains approximately fixed relative to the Earth.
Industry:Telecommunications
