- 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 dual bus in which the head-of-bus functions for both buses are at different locations.
Industry:Telecommunications
A duplex signaling unit that repeats "E" and "M" lead signals into a cable pair (s) via "A" and "B" leads. These signals are transmitted on the same cable pair (s) that transmit (s) the message.
Industry:Telecommunications
A electronic or hard-copy table or listing of the predicted positions of astronomical bodies such as the planets or the Moon; and by extension, the predicted positions of artificial satellites, such as communications satellites, orbiting the Earth. Plural ephemerides. Note 1: Ephemerides are essential tools for accurate aiming of movable high-gain antennas at, e.g., communications satellites, especially ones that exhibit significant movement relative to a fixed position on the Earth. Note 2: Precise ephemerides of the satellites used in global navigation systems, such as GPS, are required for the proper functioning of these systems.
Industry:Telecommunications
A expression of the degree to which a system, subsystem, or equipment is not operable and not in a committable state at the start of a mission, when the mission is called for at an unknown, i.e., random, time. Note 1: The conditions determining operability and committability must be specified. Note 2: Expressed mathematically, unavailability is 1 minus the availability. Note 3: Unavailability may also be expressed mathematically as the ratio of the total time a functional unit is not capable of being used during a given interval to the length of the interval, e. G. , if the unit is not capable of being used for 68 hours a week, the unavailability is 68/168.
Industry:Telecommunications
A facility for gathering and organizing data from a group of sources.
Industry:Telecommunications
A facility in which a message from an originating user is stored until the destination user requests delivery of that message.
Industry:Telecommunications
A facility in which supporting functions, such as (a) quality control checking and testing of equipment, links, and circuits, (b) troubleshooting, (c) activating, changing, and deactivating of circuits, and (d) technical coordinating and reporting, are performed.
Industry:Telecommunications
A facility staffed and equipped for processing and distributing information. Note: An IPC may be geographically distributed.
Industry:Telecommunications
A facility that provides access to communications for a user or group of users isolated from a central communications node.
Industry:Telecommunications
A facility within a group, which facility performs the function of generating keys for any specific key exchange transaction.
Industry:Telecommunications
