YDN 028-1997
Protection of SDH Optical Cable System and Equipment──Linear multiplex section, self-healing ring and other types of structures (English Version)
- Standard No.
- YDN 028-1997
- Language
- Chinese, Available in English version
- Release Date
- 1997
- Published By
- Professional Standard - Post and Telecommunication
- Latest
- YDN 028-1997
YDN 028-1997 history
- 1997 YDN 028-1997 Protection of SDH Optical Cable System and Equipment──Linear multiplex section, self-healing ring and other types of structures
