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 China 'GB/T 12057-1989 ' standard english version:

　

NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA

GB/T 12057-1989

General purpose 37-position and 9-position interface for data terminal equipment and data circuit-terminating equipment employing serial binary data interchange
使用串行二进制数据交换的数据终端设备和数据电路终接设备之间的通用37插针和9 插针接口
Issued Date:1989-12-29 　 Implemented Date:1990-07-01
Issued by: 　 The Standardization Administration of the People's Republic of China
　

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GB Standard Code GB/T 12057-1989
Standard Category China National Standards
GB Standard English Title General purpose 37-position and 9-position interface for data terminal equipment and data circuit-terminating equipment employing serial binary data interchange
GB Standard Chinese Title 使用串行二进制数据交换的数据终端设备和数据电路终接设备之间的通用37插针和9 插针接口
Chinese Version Price $5.00  per  page
English Translation Fee $15.00~$30.00   per  page
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