
INTEGRATED SERVICES DIGITAL NETWORK (ISDN); PRIMARY RATE USER-NETWORK INTERFACE; LAYER 1 SPECIFICATION AND TEST PRINCIPLES (Endorsed by AENOR in December of 1997.)
STANDARD published on 1.12.1997
Designation standards: UNE-ETS 300011/A1:1994
Note: Change
Publication date standards: 1.12.1997
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Category: Technical standards UNE