ISO/IEC/TR 8509:1987被替代
Information Processing Systems - Open Systems Interconnection - Service Conventions
出版：International Organization for Standardization
专家解读视频
Deals especially with conventions for point-to-point connection on 1 layer of reference model.
AS 3620-1989 - Identical
DD 108:1988 - Identical
GOST R ISO/TR 8509:1995 - Identical
ITU X.210:1993 - Equivalent
DD 108:1986 - Identical
BS DD108(1988) : 1988 - Identical
GOST R ISO/TR 8509 : 1995 - Identical
AS 3620-1989 - Identical
AS 3620-1989 - Identical
GOST R ISO/TR 8509 : 1995 - Identical
BS DD108(1988) : 1988 - Identical
BS DD108(1986) : LATEST - Identical
