ITU I.430:1995现行
Basic User-network Interface - Layer 1 Specification
出版：International Telecommunications Union
专家解读视频
Defines the layer 1 characteristics of the user-network interface at S- and T-reference points for basic rate ISDN as defined in Recommendation I.412. It defines service characteristics, mode of operation, wiring configuration and functional characteristics. The transmission characteristics, frame structure, line code and activation procedure at the interface are specified to facilitate the access of user equipment to the 2B- + D-channel at a bit rate of 192 kbit/s.
DIN ETS 300012 (1992-12) - Similar
NBN EN 28877:1994 - Identical
DIN ETS 300012 : 1992 AMD 2 1996 - Similar to
DIN ETS 300012 E : 1992 - Similar to
DIN ETS 300012 : 1992 AMD 2 1996 - Similar to
