Transmission block
Encyclopedia
In telecommunication
, the term transmission block has the following meanings:
A transmission block
is usually terminated by an End Of Block character
(EOB), End Transmission Block character (ETB), End Of Text character
(ETX), or End Of Transmission character
(EOT).
Telecommunication
Telecommunication is the transmission of information over significant distances to communicate. In earlier times, telecommunications involved the use of visual signals, such as beacons, smoke signals, semaphore telegraphs, signal flags, and optical heliographs, or audio messages via coded...
, the term transmission block has the following meanings:
- A group of bitBitA bit is the basic unit of information in computing and telecommunications; it is the amount of information stored by a digital device or other physical system that exists in one of two possible distinct states...
s or characters transmitted as a unit and usually containing an encoding procedure for error control purposes. - In data transmissionData transmissionData transmission, digital transmission, or digital communications is the physical transfer of data over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires, optical fibres, wireless communication channels, and storage media...
, a group of records sent, processed, or recorded as a unit.
A transmission block
Block (telecommunications)
In telecommunications a block is one of:* A group of bits or digits that is transmitted as a unit and that may be encoded for error-control purposes....
is usually terminated by an End Of Block character
Character (computing)
In computer and machine-based telecommunications terminology, a character is a unit of information that roughly corresponds to a grapheme, grapheme-like unit, or symbol, such as in an alphabet or syllabary in the written form of a natural language....
(EOB), End Transmission Block character (ETB), End Of Text character
End-of-text character
The End Of Text character is an ASCII control character used to inform the receiving computer that the end of the data stream has been reached. This may or may not be an indication that all of the data has been received....
(ETX), or End Of Transmission character
End-of-transmission character
In telecommunication, an end-of-transmission character is a transmission control character. Its intended use is to indicate the conclusion of a transmission that may have included one or more texts and any associated message headings....
(EOT).