- Industry: 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.
To represent certain features of the behavior of a physical or abstract system by the behavior of another system. Note 1: For example, delay lines may be used to simulate propagation delay and phase shift caused by an actual transmission line. Note 2: A simulator may imitate only a few of the operations and functions of the unit it simulates.
Industry:Telecommunications
With reference to American National Standard ANSI T1. 631-1993, an aspect of National Security and Emergency Preparedness (NS/EP) telephone calls, as implemented in the public switched network (PSN) for the Government Emergency Telecommunications Service (GETS. )
Industry:Telecommunications
When optical fibers are joined by a splice or a pair of mated connectors, a power loss that is caused by any mismatch in size or shape of the cross section of the cores of the mating fibers. Note 1: Any of the above conditions may allow light from the core of the "transmitting" fiber to enter the cladding of the "receiving" fiber, where it is quickly lost. Note 2: Area loss may be dependent on the direction of propagation. For example, in coupling a signal from an optical fiber having a smaller core to an otherwise identical one having a larger core, there will be no area loss, but in the opposite direction, there will be area loss.
Industry:Telecommunications
The transmission of digital data by frequency modulation of a carrier, as in binary frequency-shift keying.
Industry:Telecommunications
The state in which two signals maintain a fixed phase relationship with each other or with a third signal that can serve as a reference for each.
Industry:Telecommunications
To position selectively the access mechanism of a direct access device.
Industry:Telecommunications
The timing of the period during which a hang-up signal is being received from the called end office and an off-hook signal is being received from the calling end office.
Industry:Telecommunications
The time difference between a real clock and an ideal uniform time scale, after a time interval following perfect synchronization between the clock and the scale. 2. The variation in time delay of a given timing signal with respect to an ideal timing signal over a particular time period.
Industry:Telecommunications
Transmission media using more than one type of transmission path (e.g., optical fiber, radio, and copper wire) to deliver information.
Industry:Telecommunications
The smallest unit of data in the message body. This normally contains the actual feature data that a subscriber at the customer installation (CI) is supposed to receive, according to the feature service description.
Industry:Telecommunications
