| Standard ID | YD/T 2551-2013 (YD/T2551-2013) |
| Description (Translated English) | Technical requirements for frequency synchrnization network based on packet networks |
| Sector / Industry | Telecommunication Industry Standard (Recommended) |
| Classification of Chinese Standard | M33 |
| Classification of International Standard | 33.040.20 |
| Word Count Estimation | 62,622 |
| Quoted Standard | YD/T 1267-2003; YDN 117-1999; ITU-T G.703-2001; ITU-T G.704-1998; ITU-T G.707; ITU-T G.803; ITU-T G.810; ITU-T G.811; ITU-T G.812; ITU-T G.813-1996; ITU-T G.822; ITU-T G.823; ITU-T G.825; ITU-T G. 8261; ITU-T G.8261.1; ITU-T G.8262; ITU-T G.8263; ITU-T G. |
| Summary | This standard specifies the hierarchical structure based on frequency synchronization network packet transport network and structure, synchronization distribution, synchronization interface requirements, timing distribution within the safety and reliabili |