Information processing systems; data communication; high-level data link control procedures; consolidation of classes of procedures; addendum 1
Описание (англ.):
Enhances ISO 7809 in the following areas: a) reflects the broadening of the definition to the Unnumbered Information (UI) command/response function; b) clarifies the fact that a command frame may be transmitted simultaneously to more than one of the stations; c) provides a few editorial corrections to improve understanding, correct typing errors, and remove ambiguities.
Заменён стандартами:
ISO/IEC 7809(1991.09)
Дата введения:
01.06.87
Дата отмены:
01.09.91
Нормативные ссылки:
BS 5397 PART 5-1985, EQV*DIN ISO 7809-1989, EQV*NF Z66-111(1988/AFNOR), EQV*SS-ISO 7809(1988/SIS), EQV
Ключевые слова:
CONTROL CHARACTERS CONTROL PROCEDURES DATA COMMUNICATION DATA PROCESSING DATA TRANSFER DATA TRANSMISSION HIGH-LEVEL DATA LINK CONTROL TRANSMISSION TRANSMISSION CONTROL CHARACTERS TRANSMISSION CONTR