TB 2179.5-1991
China industry
standard english version:
TB
中华人民共和国行业标准
INDUSTRY
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
TB 2179.5-1991
(Railway telephone network data communication interface. Electrical characteristics for balanced double circuit is generally in the field of data communications equipment used in conjunction with an integrated circuit)
Issued Date:1991
Implemented Date:1991
Issued by:
The Standardization Administration of the People's Republic of China