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YD 331-1987 YD 331-1987_English: PDF (YD331-1987) Standard ID Contents [version] USD STEP2 [PDF] delivered in Standard Title (Description) Related Standard Status PDF YD 331-1987 English 279 Add to Cart 2 days General technical requirement for supporting carrier communication equipment for standard coaxial integrated communication cables YD 331-1987 Obsolete YD 331-1987 BASIC DATA Standard ID YD 331-1987 (YD331-1987) Description (Translated English) General technical requirement for supporting carrier communication equipment for standard coaxial integrated communication cables Sector / Industry Telecommunication Industry Standard Classification of Chinese Standard M31 Word Count Estimation 7,756 Date of Issue 1987/1/7 Date of Implementation 1987/7/1 Adopted Standard CCITT G.151, NEQ; CCITT G.325, NEQ Drafting Organization Ministry of Posts and Telecommunications Standardization Institute of Posts and Telecommunications Administrative Organization Ministry of Posts and Telecommunications Standardization Institute of Posts and Telecommunications Summary This standard applies to the high-frequency coaxial cable integrated four core group of four tubes (0. 9mm diameter) or eight tubes coaxial cable for high frequency integrated cable (0. 9mm diameter) on the opening of 12 + 12 type used ten Road carrier communication equipment, the equipment is mainly used range communications.