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Standard

IEEE 999-1992

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Résumé

New IEEE Standard - Inactive-Withdrawn. The use of serial digital transmission by supervisory control and data acquisition (SCADA) systems having geographically dispersed terminals is addressed. These types of systems typically utilize dedicated communication channels, such as private microwave channels or leased telephone lines, which are limited to data rates of less than 10 000 bits/s. Wideband local networks used for high-speed data acquisition and control functions are excluded. This standard covers the communication channels, channel interfaces, message format, information field usage, and communication management. A standard message protocol is defined to the octet level, rather than to the bit level; most details at the bit level are left to the manufacturers of SCADA equipment to define and implement.

Spécifications des produits

  • Standard de IEEE
  • Publié:
  • Radié:
  • Type de document: IS
  • Pages
  • Editeur: IEEE
  • Distributeur: IEEE
  • ICS: 33.200
  • Comité national: IEEE Power and Energy Society / Substations

Relations produit

  • Référence: IEEE 776-1987
  • Référence: IEEE 367-1987
  • Référence: IEEE C37.1-1987
  • Référence: IEEE 643-1980
  • Référence: IEEE 487-1980
  • Référence: ANSI X3.172-1990, American National Standard Dictionary for Information Systems (ANDIS).
  • Référence: CCITT Blue Book, Vol. VIII.1 (V Series Recommendations), Data Communication Over the Telephone Network, November 1980.2
  • Référence: ANSI X3.4-1986, Coded Character Set—7 Bit American National Standard Code for Information Interchange.
  • Référence: EIA-423-A (Dec. 1978), Electrical Characteristics of Unbalanced Voltage Digital Interface Circuits.
  • Référence: EIA-422-A (Dec. 1978), Electrical Characteristics of Balanced Voltage Digital Interface Circuits.
  • Référence: EIA-449 (Nov. 1977, Reaff. Dec. 1984), General Purpose 37-Position and 9-Position Interface for Data Terminal Equipment and Data Circuit-Terminating Equipment Employing Serial Binary Data Interchange.-1ANSI publications are available from the Sales Department, American National Standards Institute, 11 West 42nd Street, 13th Floor, New York, NY 10036, USA.