YDJ 5-1985
Specification for installation design of long-distance communications carrier telephone equipment (English Version)
- Standard No.
- YDJ 5-1985
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Post and Telecommunication
- Latest
- YDJ 5-1985
- Replace
- YDJ 5-81
YDJ 5-1985 history
- 1970 YDJ 5-1985 Specification for installation design of long-distance communications carrier telephone equipment
