GB/T 7556-1987

General characteristics complying with the network performance objectives for 60 channel carrier telephone systems on symmetric cable pairs

NORMA vydaná dňa 26.3.1987

Anglicky a čínsky -
Elektronické PDF (288.50 EUR)

Anglicky a čínsky -

Tlačené (288.50 EUR)

The information about the standard:

Designation standards: GB/T 7556-1987
Note: NEPLATNÁ
Publication date standards: 26.3.1987
Country: Chinese technical standard
Kategória: Technické normy GB