GB/T 7555-1987

General characteristics complying with the network performance objectives for 12 channel carrier telephone systems on open-wire pairs

NORM herausgegeben am 26.3.1987

The information about the standard:

Designation standards: GB/T 7555-1987
Note: UNGÜLTIG
Publication date standards: 26.3.1987
Country: Chinese technical standard
Kategorie: Technische Normen GB