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133 Telecommunications term topics matching:
Filter this Collection| x name | x image | x article |
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| x Acoustic coupler |
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In telecommunications, the term acoustic coupler has the following meanings:
The link is achieved through acoustic (sound) signals rather than through direct electrical connection.
Prior to its breakup, Bell System's monopoly over telephony in the...
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| x Alarm sensor |
In telecommunication, the term alarm sensor has the following meanings:
1. In communications systems, a device that can sense an abnormal condition within the system and provide a signal indicating the presence or nature of the abnormality to either...
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| x Attenuation constant |
In telecommunication, the term attenuation constant has the following meanings:
1. The real part of the propagation constant in any electromagnetic propagation medium.
The attenuation constant is usually expressed as a numerical value per unit...
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| x Audit |
In telecommunications, the term audit has the following meanings:
The simplest audits merely consist of comparing current telecommunications billing and usage to other alternatives based on their relative cost, security and reliability. Complex...
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| x Automatic data processing |
In telecommunication, the term automatic data processing (ADP) has the following meanings:
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| x Availability |
In telecommunications and reliability theory, the term availability has the following meanings:
1. The degree to which a system, subsystem, or equipment is operable and in a committable state at the start of a mission, when the mission is called for...
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| x Bandwidth compression |
In telecommunication, the term bandwidth compression has the following meanings:
Note: Bandwidth compression implies a reduction in normal bandwidth of an information-carrying signal without reducing the information content of the signal. This can...
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| x Basic serving arrangement |
In telecommunication, the term basic serving arrangement (BSA) has the following meanings:
1. The fundamental tariffed switching and transmission (and other) services that an operating company must provide to an enhanced service provider (ESP) to...
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| x Beamwidth |
In telecommunication, the term beamwidth has the following meanings:
1. In the radio regime, of an antenna pattern, the angle between the half-power (-3 dB) points of the main lobe, when referenced to the peak effective radiated power of the main...
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| x Bias distortion |
In telecommunication, the term bias distortion has the following meanings:
Bias distortion is expressed in percent of the system-specified unit interval.
This article incorporates public domain material from the General Services Administration...
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| x Bit-count integrity |
In telecommunication, the term bit-count integrity (BCI) has the following meanings:
Note: Bit-count integrity is not the same as bit integrity, which requires that the delivered bits correspond exactly with the original bits.
Source: from Federal...
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| x Black facsimile transmission |
In telecommunication, the term black facsimile transmission has the following meanings:
See also White facsimile transmission.
Source: from Federal Standard 1037C and from MIL-STD-188
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| x Black recording |
In telecommunication, the term black recording has the following meanings:
1. In facsimile systems using amplitude modulation, recording in which the maximum received power corresponds to the maximum density of the record medium.
2. In a facsimile...
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| x Burst transmission |
In telecommunication, the term burst transmission has the following meanings:
Note: Burst transmission enables communications between data terminal equipment (DTEs) and a data network operating at dissimilar data signaling rates. Synonym data burst....
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| x Call duration |
In telecommunications, the term call duration has the following meanings:
Source: from Federal Standard 1037C
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| x Call management |
In telecommunications, call management is the process of designing and implementing rules and parameters governing the routing of inbound telephone calls through a network. These rules can specify how calls are distributed according to the time and...
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| x Call processing |
In telecommunication, the term call processing has the following meanings:
This article incorporates public domain material from the General Services Administration document "Federal Standard 1037C".
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| x Call set-up time |
In telecommunication, the term call set-up time has the following meanings:
Note: Call set-up time is the summation of: (a) call request time--the time from initiation of a calling signal to the delivery to the caller of a proceed-to-select signal; ...
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| x Camp-on busy signal |
In telecommunication, the term camp-on busy signal has the following meanings:
This article contains material from the Federal Standard 1037C, which, as a work of the United States Government, is in the public domain.
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| x Cancel character |
In telecommunication, the term cancel character has the following meanings:
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| x Carrier shift |
In telecommunication, the term carrier shift has the following meanings:
Note 1: The carrier shift results in a change in carrier power.
Note 2: The carrier shift may be a shift to a higher or to a lower frequency.
This article contains material...
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| x Channel noise level |
In telecommunication, the term channel noise level has the following meanings:
This article contains material from the Federal Standard 1037C (in support of MIL-STD-188), which, as a work of the United States Government, is in the public domain.
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| x Chirping |
In telecommunication, the term chirping has the following meanings:
1. The rapid changing, as opposed to long-term drifting, of the frequency of an electromagnetic wave.
Chirping is most often observed in pulsed operation of a source.
2. A pulse...
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| x Code conversion |
In telecommunication, the term code conversion has the following meanings:
1. Conversion of signals, or groups of signals, in one code into corresponding signals, or groups of signals, in another code.
2. A process for converting a code of some...
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| x Common-mode interference |
In telecommunication, the term common-mode interference has the following meanings:
Common mode noise may be isolated from the desired signal by various means:
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| x Communications center |
In telecommunication, the term communications center has the following meanings:
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| x Communications deception |
In telecommunication, the term communications deception has the following meanings:
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| x Communications jamming |
In telecommunication, the term communications jamming (COMJAM) has the following meanings:
The aim of communications jamming is to prevent communications by electromagnetic means, or at least to degrade communications sufficiently to cause delays in...
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| x Computer conferencing |
In telecommunication, the term computer conferencing has the following meanings:
This article incorporates public domain material from the General Services Administration document "Federal Standard 1037C" (in support of MIL-STD-188).
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| x Concentrator |
In telecommunication, the term concentrator has the following meanings:
ISP usually use concentrators to enable modem dialing, this kind of concentrator is sometimes called a modem concentrator or a remote access concentrator.
Source: Federal...
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| x Conditioning equipment |
In telecommunication, the term conditioning equipment has the following meanings:
This article contains material from the Federal Standard 1037C (in support of MIL-STD-188), which, as a work of the United States Government, is in the public domain.
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| x Conducted interference |
In telecommunications, the term conducted interference has the following meanings:
This article contains material from the Federal Standard 1037C (in support of MIL-STD-188), which, as a work of the United States Government, is in the public domain.
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| x Configuration management |
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Configuration management (CM) is a field of management that focuses on establishing and maintaining consistency of a system's or product's performance and its functional and physical attributes with its requirements, design, and operational...
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| x Connections per circuit hour |
In telecommunication, the term connections per circuit hour (CCH) has the following meanings:
The magnitude of the CCH is an instantaneous value subject to change as a function of time (i.e. from moment to moment), and is subject to study including...
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| x Continuous operation |
In telecommunication, the term continuous operation has the following meanings:
Continuous operation usually requires that there be fully redundant configuration, or at least a sufficient X out of Y degree of redundancy for compatible equipment,...
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| x Customer office terminal |
In telecommunications, the term customer office terminal has the following meanings:
Note: An example of a customer office terminal is a stand-alone multiplexer located on the customer premises.
Note: This function may be integrated into the ET....
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| x Data service unit |
A data service unit, sometimes called a digital service unit, is a piece of telecommunications circuit terminating equipment that transforms digital data between telephone company lines and local equipment. The device converts bipolar digital...
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| x Decrypt |
In telecommunications, the term decrypt has the following meanings:
Note: The term "decrypt" covers the meanings of "decipher" and "decode."
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| x Demand factor |
In telecommunication, electronics and the electrical power industry, the term demand factor has the following meanings:
1. The ratio of (a) the maximum real power consumed by a system to (b) the maximum real power that would be consumed if the...
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| x Demand load |
In telecommunication, the term demand load can have the following meanings:
This article incorporates public domain material from the General Services Administration document "Federal Standard 1037C" (in support of MIL-STD-188).
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| x Deterministic routing |
In telecommunications, the term deterministic routing has the following meanings:
1. In a switched network, switching in which the routes between given pairs of nodes are pre-programmed, i.e., are determined, in advance of transmission.
Note: The...
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| x Directive gain |
In telecommunications, the term directive gain has the following meanings:
A typical satellite antenna (satellite dish) has an efficiency in the range 55% to 65%, this depends on antenna diameter and geometry. Typical units used are dBi (dB over...
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| x Dual access |
In telecommunication, the term dual access has the following meanings:
Also, network hardware company D-Link has named technology which allows two simultaneous connections over one cable, for example 1) Internet and 2) provider's local FTP or game...
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| x Duty cycle |
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In telecommunications and electronics, the duty cycle is the fraction of time that a system is in an "active" state. In particular, it is used in the following contexts:
Duty cycle is the proportion of time during which a component, device, or...
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| x Electromagnetic environment |
In telecommunication, the term electromagnetic environment (EME) has the following meanings:
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| x Telecommunications facility |
In telecommunications, a facility is defined by Federal Standard 1037C as:
Under Canadian federal and Québécois provincial law, a telecommunications facility, for the purposes of determining whether GST applies, is defined by §123(1) of the GST Act...
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| x Facsimile converter |
In telecommunication, the term facsimile converter has the following meanings:
1. In a facsimile receiver, a device that changes the signal modulation from frequency-shift keying (FSK) to amplitude modulation (AM).
2. In a facsimile transmitter, a...
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| x Fade margin |
In telecommunication, the term fade margin (fading margin) has the following meanings:
This article incorporates public domain material from the General Services Administration document "Federal Standard 1037C".
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| x File server |
In computing, a file server is a computer attached to a network that has the primary purpose of providing a location for the shared storage of computer files (such as documents, sound files, photographs, movies, images, databases, etc.) that can be...
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| x Foreign instrumentation signals intelligence |
In telecommunication, the term foreign instrumentation signals intelligence (FISINT) has the following meanings:
1. Intelligence information derived from electromagnetic emissions associated with the testing and operational deployment of foreign...
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| x Frequency averaging |
In telecommunication, the term frequency averaging has the following meanings:
Note: In frequency averaging, all oscillators are assigned equal weight in determining the ultimate network frequency.
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| x Frequency compatibility |
In telecommunication, the term frequency compatibility has the following meanings:
1. Of an electronic device, the extent to which it will operate at its designed performance level in its intended operational environment (including the presence of...
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| x Frequency frogging |
In telecommunication, the term frequency frogging has the following meanings:
1. The interchanging of the frequencies of carrier channels to accomplish specific purposes, such as to prevent feedback and oscillation, to reduce crosstalk, and to...
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| x Frequency shift |
In the physical sciences and in telecommunication, the term frequency shift has the following meanings:
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| x Garble | ||
| x Gating |
Gating may refer to:
and see also
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| x Halftone characteristic |
In telecommunication, the term halftone characteristic has the following meanings:
See also: halftone
This article contains material from the Federal Standard 1037C (in support of MIL-STD-188), which, as a work of the United States Government, is in...
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| x Hop count |
In telecommunication, the term hop count has the following meanings:
1. In a data communications network, the number of legs traversed by a packet between its source and destination.
Note: Hop count may be used to determine the time to live for some...
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| x Information-bearer channel |
In telecommunication, the term information-bearer channel has the following meanings:
1. A channel capable of transmitting all the information required for communication, such as user data, synchronizing sequences, and control signals.
Note: The...
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| x Inside plant |
In telecommunication, the term inside plant has the following meanings:
Around the turn of the century, DSLAMs became an important part of telephone company inside plant. Inside plant will also have distribution frames and other equipment including...
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