GB/T 7557-1987

General characteristics complying with the network performance objectives for 300 channel carrier telephone systems on standardized 1.2/4.4mm coaxial cable pairs

STANDARD published on 26.3.1987

English, Chinese -
electronic design (pdf) (238.80 USD)

English, Chinese -

Print design (238.80 USD)

The information about the standard:

Designation standards: GB/T 7557-1987
Note: WITHDRAWN
Publication date standards: 26.3.1987
Country: Chinese technical standard
Category: Technical standards GB