
INTEGRATED SERVICES DIGITAL NETWORK (ISDN); PRIMARY RATE USER-NETWORK INTERFACE; LAYER 1 SPECIFICATION AND TEST PRINCIPLES (Endorsed by AENOR in December of 1997.)
NORM herausgegeben am 1.12.1997
Designation standards: UNE-ETS 300011/A1:1994
Note: Änderung
Publication date standards: 1.12.1997
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategorie: Technische Normen UNE