GJB 687.1-1989
General technical requirements for data modems Power levels on telephone lines (English Version)
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GJB 687.1-1989
Standard No.
GJB 687.1-1989
Language
Chinese,
Available in English version
Release Date
1989
Published By
Military Standard of the People's Republic of China-General Armament Department
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GJB 687.1-1989
GJB 687.1-1989 history
1989
GJB 687.1-1989
General technical requirements for data modems Power levels on telephone lines
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