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IEEE/ANSI 802.4-1990

IEEE Standard for Information processing systems -- Local area networks --Part 4: Standard for Token-Passing Bus Access Method and Physical Layer Specifications
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IEEE/ANSI 802.4-1990

IEEE Standard for Information processing systems -- Local area networks --Part 4: Standard for Token-Passing Bus Access Method and Physical Layer Specifications

PUBLISH DATE 1990
PAGES 278
IEEE/ANSI 802.4-1990
New IEEE Standard - Inactive-Withdrawn. This local area network (LAN) standard deals with all elements of the token-passing bus access method and its associated physical signaling and media technologies. To facilitate interconnection of stations by way of a LAN using the token-passing bus access method, this standard specifies the characteristics of the transmission medium; the signaling method used; the frame formats transmitted; the actions of a station upon receipt of a frame; the services provided at the conceptual interface between the Medium Access Control (MAC) sublayer and the Logical Link Control (LLC) sublayer; and the actions, entities and values used by management. There are four medium characteristics and signaling methods: 5 and 10 Mb/s phase-coherent FSK; 1, 5, and 10 Mb/s broadband; 10 and 20 Mb/s fiberoptic; and 1 Mb/s phase-continuous FSK.
For the purpose of compatible interconnection of stations by way of a LAN using the token-passing bus access method this standard (1) Specifies the electrical and/or optical and physical characteristics of the transmission medium, (2) Specifies the electrical or optical signaling method used, (3) Specifies the frame formats transmitted, (4) Specifies the actions of a station upon receipt of a frame, (5) Specifies the services provided at the conceptual interface between the Medium Access Control (MAC) sublayer and the Logical Link Control (LLC) sublayer above it, (6) Specifies the actions, entities, and values used to manage the MAC sublayer and Physical Layer Entity (PLE). Within this standard the operation of a station is specified in terms of the layered model shown in Fig 1-1 and described in ISO 7498 : 1984 [13]. 1 Additional information on the 802 family of LAN standards can be found in IEEE Std 802- 1990 [9]. 2 Figure 1-1 also shows which sections of the standard specify interfaces between layers and which sections specify the operation of the layers themselves. Recommendations for frequency allocations for community antenna television (CATV) systems are subjects for national standardization and are outside the scope of this International Standard.
SDO IEEE: Institute of Electrical and Electronics Engineers
Document Number 802.4
Publication Date Aug. 17, 1990
Language en - English
Page Count 278
Revision Level
Supercedes
Committee LAN/MAN Standards Committee
Publish Date Document Id Type View
Aug. 17, 1990 802.4-1990 Revision