【国外标准】 IEEE Information Technology - Local and metropolitan area networks - Part 5: Token ring access method and physical layer specifications

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IEEE/ANSI 802.5-1992
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标准简介

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Defines the frame format, including delimiters, addressing, routing information, and frame-check sequence (FCS), to allow operation on a single ring or on multiple rings connected by source routing or transparent bridges, and introduces medium access control (MAC) frames, timers, counters, and priority stacks (see Section 3); (2) Defines the MAC protocol. The finite-state machine and state tables are supplemented with a prose description of the algorithms (see Section 4); (3) Defines the… read more physical layer (PHY) functions of symbol encoding and decoding, symbol timing, and latency buffering (see Section 5); (4) Describes the services provided by the MAC to the station management (SMT) and the logical link control sublayer (LLC) and the services provided by the PHY to SMT and the MAC. These services are defined in terms of service primitives and associated parameters (see Section 6); (5) Defines the 4 and 16 Mh/s, shielded twisted pair attachment of the station to the medium including the definition of the medium interface connector (MIC) (see Section 7); (6) Includes the PICS proforma in compliance with the relevant requirements, and in accordance with the relevant guidance, given in ISO 9646-2 [7]1 (see Annex C). read less

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IEEE/ANSI 802.5-1992
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IEEE Information Technology - Local and metropolitan area networks - Part 5: Token ring access method and physical layer specifications
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