2. Physical route
A physical channel (figure 1 ) is a channel on a medium between two terminal stations. In standard terminology, a physical channel connects two data circuit-terminating equipments (DCE), which are the interfaces to the data terminal equipment (DTE).
Data processing terminal equipment (DTE) is the set of devices that enable communication between processing processes, storage systems and data circuit terminal equipment. A DTE is, in most cases, a computer, a PLC, a workstation and now a sensor, an actuator, provided they are obviously fitted with the appropriate communication and data processing devices. DTEs are generally referred to as station, site, machine, host, node.
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References
Bibliography
Recommended books
To learn more about the main protocols used in industrial communications, consult the following two books:
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The Industrial Communication Technology Handbook, Ed. Richard Zurawski, CRC Press, 2000 N. W. Corporate Blvd, Boca Raton Florida, 33431. 2005. ISBN 0-8493-3077-7.
42 chapters divided into two parts, the first of which summarizes the basic...
Standards bodies
AFNOR Association Française de Normalisation
BSI British Standard Institute
DS Danish Standard
DIN Deutsches Institut für Normüng
IEC International Electrotechnical Commission
IEEE Institute of Electrical and Electronics Engineers
ISO International Organization for Standardization...
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