China 'TB 2179.4-1991 ' Industry standard english version:

中华人民共和国行业标准
INDUSTRY STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA

TB 2179.4-1991

Issued Date:1991

Implemented Date:1991

Issued by:

The Standardization Administration of the People's Republic of China

GB Standard Code	TB 2179.4-1991
Standard Category	China Railway & Train Standards
GB Standard English Title	(Railway telephone network data communication interface. In the field of data communications usually Electrical characteristics for unbalanced double interface integrated circuit devices used in conjunction with)
GB Standard Chinese Title
Chinese Version Price	$5.00 per 1 page
English Translation Fee	$15.00~$30.00 per 1 page
Member Price	10%~50% off


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