EG 201 793 : 1.1.1

Intellectual Property Rights
Foreword
1 Scope
   1.1 Purpose of the present
   1.2 Relationship with other Documents
2 References
3 Definitions and abbreviations
   3.1 Definitions
   3 2 Abbreviations
4 The importance of and need for Synchronization
5 The need for Synchronization in specific Traffic Networks
   5.1 General
   5.2 PDH Network Needs
   5.3 SDH Network Needs
   5.4 Switching needs
   5.5 GSM needs
6 Elements of a Synchronization Network
   6.1 Introduction
   6.2 PRC (Primary Reference Clock)
   6.3 SSU
   6.4 SETS (SDH Equipment Timing Source), SEC (SDH Equipment
       Clock)
   6.5 Regenerator Timing Generator (RTG)
7 Synchronization Distribution Architecture
   7.1 Introduction
   7.2 Master-Slave Synchronization
   7.3 Intra-node Synchronization
   7.4 Distributed PRC Architecture
   7.5 Mixed PRC Architecture
   7.6 Planning Rules
8 Restoration of Synchronization References
   8.1 Types of Protection Mechanisms
   8.2 Selection based on Priority Tables
   8.3 Restoration based on Synchronization Status Messages
   8.4 Applications of Synchronization Status Messages
9 Maintenance Strategies
10 2 Mbit/s retiming applications
   10.1 Definition
   10.2 Network applications for 2 Mbit/s retiming
11 Managing the Synchronization Network
   11.1 Need for Managing the Sync Network
   11.2 Requirements for a Synchronization Network Management
        System
12 Synchronization Interworking between Operators
   12.1 General
   12.2 Independent Synchronization
   12.3 Exchange of Synchronization Reference Signals
   12.4 Performance Issues
Annex A (informative): Examples of Subnetworks employing SSM
        controlled restoration
      A.1 Introduction
      A.2 Network example n 1
      A.3 Network example n 2
      A.4 Network example n 3
      A.5 Network example n 4
      A.6 Network example n 5
Annex B (informative): Interworking between SASE's and SDH NE's
      B.1 Introduction
      B.2 Network analysis
      B.3 SDH sub-network Examples
Annex C (informative): Examples of Synchronization Network
        Implementation
      C.1 Dedicated Synchronization Network
      C.2 Non-Dedicated Synchronization Network
      C.3 Mixed Synchronization Network
History