I.S. ETS 300 012:1993现行
Integrated Services Digital Network (isdn) - Basic User-network Interface - Layer 1 Specification And Test Principles
出版：National Standards Authority of Ireland
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基本信息
标准编号： I.S. ETS 300 012:1993
标准类别：TechnicalSpecification
出版单位：National Standards Authority of Ireland
标准页数：187
标准简介
Defines requirements and test principles for the ISDN basic rate user-network interface including the physical, electrical and functional characteristics and the information exchange with higher layers.
