DIN ETS 300012 : 1992 AMD 2 1996被替代
INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - BASIC USER-NETWORK INTERFACE - LAYER 1 SPECIFICATION AND TEST PRINCIPLES
出版：German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻
Gives 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. This ensures that interface implementations in an ISDN equipment for use with ISDN basic access is portable within Europe with regard to layer 1 interface aspects and that interworking with higher layer protocols for ISDN is supported.
ITU I.430 : 1995 - Similar to
ITU I.430 : 1995 - Similar to
ETS 300 200012 : 20001 - Identical
ETS 300 200012 : 20001 - Identical
