Broadband Integrated Services Digital Network (B-ISDN);Synchronous Digital Hierarchy (SDH) based user network access;Physical layer interfaces for B-ISDN applications (Endorsed by Asociación Espanola de Normalización in June of 2022.)
NORMA vydána dne 1.6.2022
Designation standards: UNE-ETS 300300ED1
Publication date standards: 1.6.2022
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategorie: Technické normy UNE