YD 2004-1992
Specification for installation engineering design of digital multiplex equipment of long distance communication trunk (English Version)
- Standard No.
- YD 2004-1992
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Post and Telecommunication
- Latest
- YD 2004-1992
YD 2004-1992 history
- 1970 YD 2004-1992 Specification for installation engineering design of digital multiplex equipment of long distance communication trunk
