ISO 2110:1989/Amd 1:1991 EN a7590e78
Information technology — Data communication — 25-pole DTE/DCE interface connector and contact number assignments — Amendment 1: Interface connector and contact number assignments for a DTE/DCE interface for data signalling rates above 20 000 bit/s per second
现行
发布日期 :
1991-09-26
实施日期 :
ISO 9160:1988 EN 415c0ea9
Information processing - Data encipherment - Physical layer interoperability requirements
现行
发布日期 :
1988-01-28
实施日期 :
ISO/IEC 10022:1996 FR 8178ea99
Information technology -- Open Systems Interconnection -- Physical Service Definition
现行
发布日期 :
1996-09-05
实施日期 :