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Telecontrol equipment and systems Specification for interfaces (electrical characteristics)
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Available format(s): Hardcopy, PDF
Language(s): English
Published date: 31-10-1991
Publisher: British Standards Institution
Committees responsibleNational forewordSpecification1. Scope 2. Object3. Types of information4. Interface between telecontrol equipment and process equipment5. Interface between telecontrol equipment and operator's equipment6. Interfaces between telecontrol equipment and communication subsystems7. Interface between telecontrol equipment and other data processing equipmentAnnexZA. Other international publications quoted in this standard with the references of the relevant European publications (normative)Tables1. Examples of relationships between signals and types of information2. Nominal voltages for binary signals3. Current classes for binary input signals4. Current classes for binary output signals5. Nominal values for analog signals6. Interference voltage limits and insulation requirements for binary signals7. Interference voltage limits and insulation requirements for analog signals8. Active binary input signals9. Passive binary input signals10. Passive binary output signals11. Active binary output signals12. Analog input and output signals13. Relationship between physical distance (DCE/DTE) and maximum transmission speed14. CCITT, ISO and EIA recommendations/standards for CDE-DTE interfacesFigures1. Interfaces between modules in a typical telecontrol system2. Level ranges of binary signals3. Parameters of a binary signal4. Level ranges of analog signals5. Binary input circuits:5a. Active binary input circuit5b. Passive binary input circuit6. Binary output circuits:6a. Passive binary output circuit6b. Active binary output circuit7. Analog input and output circuits:7a. Analog input circuit7b. Analog output circuit
Defines electrical interface characteristics, e.g. signals, impedances, etc. which have to be met at the shared boundaries.
This series of standards applies to telecontrol equipment and systems with coded bit serial data transmission for monitoring and controlling geographically widespread processes.
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