Channels and links of primary trunk network within all-union automatic communication system. Electric parameters and methods of measurement
NORMA vydaná dňa 1.1.1989
Designation standards: GOST 21655-87
Publication date standards: 1.1.1989
The number of pages: 106
Approximate weight : 349 g (0.77 lbs)
Country: Russian technical standard
Kategória: Technické normy GOST