YD/T 2551-2013
Technical requirements for frequency synchronization network based on packet networks (English Version)

Standard No.

YD/T 2551-2013

Language

Chinese, Available in English version

Release Date

2013

Published By

Professional Standard - Post and Telecommunication

Latest

YD/T 2551-2013

Scope

This standard specifies the hierarchical structure and composition of the frequency synchronization network based on the packet transmission network, synchronization allocation, synchronization interface requirements, drift indicators and their allocation, safety and reliability requirements of the synchronization network, packet network system transmission timing requirements, and basic intra-office timing allocation Ask to wait. This standard is mainly applicable to frequency synchronization networks in packet network environments.

YD/T 2551-2013 Referenced Document

• IEEE 1588 IEEE Standard for a Precision Clock Synchronization Protocol for Networked Measurement and Control Systems
• IEEE 802.3 
• ITU-T G.703-2001 Physical/Electrical Characteristics of Hierarchical Digital Interfaces - Series G: Transmission Systems and Media, Digital Systems and Networks Digital Terminal Equipments - General Study Group 15; Erratum 1: Covering Note: 07/20/2005*， 2024-04-20 Update
• ITU-T G.704-1998 Synchronous Frame Structures Used at 154463122048 8448 and 44 736 kbit/s Hierarchical Levels - Series G: Transmission Systems and Media Digital Systems and Networks Digital Transmission Systems - Terminal Equipments - General Study Group 15; 44 pp
• ITU-T G.803 Architecture of Transport Networks Based on the Synchronous Digital Hierarchy (SDH) - Series G: Transmission Systems and Media Digital Systems and Networks Digital Transmission Systems - Digital Networks - General Aspects Study Group 13
• ITU-T G.812 Timing requirements of slave clocks suitable for use as node clocks in synchronization networks Study Group 15
• ITU-T G.813-1996 Timing Characteristics of SDH Equipment Slave Clocks (SEC) - Series G: Transmission Systems and Media; Digital Transmission Systems - Digital Networks - Design Objectives for Digital Networks (Study Group 13; 37pp)
• ITU-T G.822 CONTROLLED SLIP RATE OBJECTIVES ON AN INTERNATIONAL DIGITAL CONNECTION
• ITU-T G.823 Control of Jitter and Wander within Digital Networks Which Are Based on the 2048 KBIT/S Hierarchy Series G: Transmission Systems and Media Digital Systems and Networks; Digital Networks - Quality and Availability Targets
• ITU-T G.8261.1 Packet delay variation network limits applicable to packet-based methods (Frequency synchronization) (Study Group 15)
• ITU-T G.8262 *， 2018-11-01 Update
• ITU-T G.957 Optical interfaces for equipments and systems relating to the synchronous digital hierarchy (Study Group 15)
• YD/T 1267-2003 Technical specification for synchronization network based on SDH transport network
• YDN 117-1999 Planning method and organization principle for digital synchronization network (internal standard)

YD/T 2551-2013 history

• 2013 YD/T 2551-2013 Technical requirements for frequency synchronization network based on packet networks