Integrated Services Digital Network (ISDN); Basic access - safety and protection; Part 4: Interface Ib - safety
NORMA vydaná dňa 31.8.1992
Designation standards: ETSI ETS 300047-4-ed.1
Note: NEPLATNÁ
Publication date standards: 31.8.1992
The number of pages: 13
Approximate weight : 39 g (0.09 lbs)
Country: European technical standard
Kategória: Technické normy ETSI