Master station
Encyclopedia
In telecommunication
, the term master station has the following meanings:
1. In a data
network
, the station that is designated by the control station to ensure data transfer
to one or more slave stations.
Note: A master station controls one or more data links of the data communications network at any given instant. The assignment
of master status to a given station is temporary and is controlled by the control station according to the procedures set forth in the operational protocol. Master status is normally conferred upon a station so that it may transmit a message
, but a station need not have a message to send to be designated the master station.
2. In navigation systems using precise time dissemination, a station that has the clock
used to synchronize the clocks of subordinate stations.
3. In basic mode link control, the data station that has accepted an invitation to ensure a data
transfer
to one or more slave stations.
Note: At a given instant, there can be only one master station on a data link
.
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 master station has the following meanings:
1. In a data
Data
The 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...
network
Telecommunications network
A telecommunications network is a collection of terminals, links and nodes which connect together to enable telecommunication between users of the terminals. Networks may use circuit switching or message switching. Each terminal in the network must have a unique address so messages or connections...
, the station that is designated by the control station to ensure data 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...
to one or more slave stations.
Note: A master station controls one or more data links of the data communications network at any given instant. The assignment
Assignment
'Assignment may refer to:* Assignment , a type of modification to a variable* Assignment , a task given to students by their teachers to be completed out of the class time....
of master status to a given station is temporary and is controlled by the control station according to the procedures set forth in the operational protocol. Master status is normally conferred upon a station so that it may transmit a message
Message
A message in its most general meaning is an object of communication. It is a vessel which provides information. Yet, it can also be this information. Therefore, its meaning is dependent upon the context in which it is used; the term may apply to both the information and its form...
, but a station need not have a message to send to be designated the master station.
2. In navigation systems using precise time dissemination, a station that has the clock
Clock
A clock is an instrument used to indicate, keep, and co-ordinate time. The word clock is derived ultimately from the Celtic words clagan and clocca meaning "bell". A silent instrument missing such a mechanism has traditionally been known as a timepiece...
used to synchronize the clocks of subordinate stations.
3. In basic mode link control, the data station that has accepted an invitation to ensure a data
Data
The 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...
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...
to one or more slave stations.
Note: At a given instant, there can be only one master station on a data link
Data link
In telecommunication a data link is the means of connecting one location to another for the purpose of transmitting and receiving information. It can also refer to a set of electronics assemblies, consisting of a transmitter and a receiver and the interconnecting data telecommunication circuit...
.