Primary channel
Encyclopedia
In telecommunication
, the term primary channel has the following meanings:
A primary channel may support the transfer
of information
in one direction only, either direction alternately, or both directions simultaneously.
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 primary channel has the following meanings:
- The channelChannel (communications)In telecommunications and computer networking, a communication channel, or channel, refers either to a physical transmission medium such as a wire, or to a logical connection over a multiplexed medium such as a radio channel...
that is designated as a prime transmissionTransmission (telecommunications)Transmission, in telecommunications, is the process of sending, propagating and receiving an analogue or digital information signal over a physical point-to-point or point-to-multipoint transmission medium, either wired, optical fiber or wireless...
channel and is used as the first choice in restoring priorityPriorityPriority may refer to:* Priority date, a concept of establishing waiting times in the immigration process by United States Department of State* Priority level, the priority of emergency communications...
circuits. - In a communications network, the channel that has the highest dataDataThe term data refers to qualitative or quantitative attributes of a variable or set of variables. Data are typically the results of measurements and can be the basis of graphs, images, or observations of a set of variables. Data are often viewed as the lowest level of abstraction from which...
rate of all the channels sharing a common interface.
A primary channel may support the transfer
Transfer
Transfer may refer to:* Transfer * Transfer * Transfer DNA, the transferred DNA of the tumor-inducing plasmid of some species of bacteria such as Agrobacterium tumefaciens* Transfer...
of information
Information
Information in its most restricted technical sense is a message or collection of messages that consists of an ordered sequence of symbols, or it is the meaning that can be interpreted from such a message or collection of messages. Information can be recorded or transmitted. It can be recorded as...
in one direction only, either direction alternately, or both directions simultaneously.