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ANSDIT - The letter "D" (1990 words) |
 | The arrangement of data in a storage device and implementation of an access method that are in accordance with the data structures of files and of their records and that provide for these records to be part of a database. |
| Between a data station and a data switching exchange or data concentrator, the data circuit includes the DCE at the data station end, and may include equipment similar to a DCE at the data switching exchange or data concentrator location. |
| The transfer of data among functional units according to sets of rules governing data data transmission and the coordination of the exchange. |
| DATA-LINC MODEMS: How to Improve Industrial Data Communications (2550 words) |
| This means that data communications equipment must be compatible with or adjustable in order to interface and function with many different devices.In addition to standard RS-232, many devices use RS-422 or 485 digital interfaces.The communications devices must also deal with different word lengthsand special attention pulses. |
| Some data communication tasks are only point-to-point but many more involve multiple remotes controlled from a central location.The data communications devices must operate in a multi-drop mode, in most instances providingcarrier control so that only one responding carrier is on at one time. |
| Data communications problems are thereby dealt with effectively because of this unique characteristic of a CM signal. |
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