
INTEGRATED SERVICES DIGITAL NETWORK (ISDN); BASIC USER-NETWORK INTERFACE; LAYER 1 SPECIFICATION AND TEST PRINCIPLES. (Endorsed by AENOR in December of 1997.)
NORM herausgegeben am 30.10.1999
Designation standards: UNE-ETS 300012:1992
Note: UNGÜLTIG
Publication date standards: 30.10.1999
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategorie: Technische Normen UNE