CEI EN 61334-4-32

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CEI EN 61334-4-32

1997

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Distribution automation using distribution line carrier systems – Part 4: Data communication protocols – Section 32: Data link layer – Logical link control (LLC)

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I servizi di un livello (o di un sottolivello) sono le operazioni che questo è in grado di svolgere su richiesta del livello immediatamente superiore; nell’eseguire le operazioni di sua competenza, tale livello fa a sua volta riferimento ai servizi offertigli dal livello inferiore. Nella gerarchia di un’architettura a tre livelli, come descritta dalla CEI EN 1334-4-1, il sottolivello del controllo di collegamento logico (LLC) si colloca tra il livello applicativo ed il sottolivello di controllo dell’accesso al mezzo di comunicazione (MAC). Il protocollo di comunicazione dati (DCP) del sottolivello LLC, che viene descritto dalla presente Norma, tratta dei servizi che un’entità del sottolivello LLC svolge per il livello applicativo, e di quelli che a sua volta richiede al sottolivello MAC. I servizi sono descritti in forma astratta, specificando il flusso di informazione tra i livelli, e cioè precisando le primitive ed i parametri che caratterizzano ciascun servizio. Tali primitive sono associate a una trasmissione del tipo senza connessione.
La presente EN viene pubblicata dal CEI nella sola lingua originale inglese, a causa della limitata utilizzazione, particolarmente mirata a settori specialistici.

CEI EN 61334-4-32
STANDARD INFO:
Standard NameCEI EN 61334-4-32
ScopeDistribution automation using distribution line carrier systems - Part 4: Data communication protocols - Section 32: Data link layer - Logical link control (LLC)
PublisherCEI - Comitato Elettrotecnico Italiano
LanguagesEnglish
State[ Active ]
Publication Year1997
Most recent VersionMOST RECENT
Whether to be replaced
Addendum
FILE INFO:
Edition97
File Size1 file , 510 KB
Number of Pages36
Published09/01/1997
This document does not provide a preview.
CEI EN 61334-4-32
HistoryPublisher Year

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