China 'YD/T 521-1992 ' Industry standard english version:

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

YD/T 521-1992

Issued Date:1992-01-25

Implemented Date:1992-10-01

Issued by:

The Standardization Administration of the People's Republic of China

GB Standard Code	YD/T 521-1992
Standard Category	China Telecommunication Standards
GB Standard English Title	Test method of digital exchange analog interfaces and test method of transmission characteristics between (2-wire or 4-wire) analog interfaces
GB Standard Chinese Title	数字交换机模拟接口测试方法及模拟接口(二线或四线)间传输特性的测试方法
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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