ITU-T G.812 NOTE-2005
Timing requirements of slave clocks suitable for use as node clocks in synchronization networks (Study Group 13)

Standard No.

ITU-T G.812 NOTE-2005

Release Date

2005

Published By

International Telecommunication Union (ITU)

Latest

ITU-T G.812 NOTE-2005

Scope

This Recommendation outlines minimum requirements for timing devices used as node clocks in synchronization networks.The requirements relate to fi-equency deviation;pull-in,hold-in and pullout range;noise generation,tolerance and transfer;

ITU-T G.812 NOTE-2005 Referenced Document

• ITU-T G.783-2004 Characteristics of synchronous digital hierarchy (SDH) equipment functional blocks SERIES G: TRANSMISSION SYSTEMS AND MEDIA@ DIGITAL SYSTEMS AND NETWORKS Digital terminal equipments – Principal characteristics of multiplexing equipment for the synchronous
• ITU-T G.801-1988 Digital transmission models
• ITU-T G.803-2000 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.811-1997 Timing Characteristics of Primary Reference Clocks - Series G: Transmission Systems and Media Digital Systems and Networks Digital Transmission Systems - Digital Networks - Design Objectives for Digital Networks Study Group 13; 10 pp
• ITU-T G.813-2003 Timing characteristics of SDH equipment slave clocks (SEC) SERIES G: TRANSMISSION SYSTEMS AND MEDIA@ DIGITAL SYSTEMS AND NETWORKS Digital networks – Design objectives for digital networks (Study Group 15)
• ITU-T G.822-1988 CONTROLLED SLIP RATE OBJECTIVES ON AN INTERNATIONAL DIGITAL CONNECTION
• ITU-T G.823-2000 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.824-2000 Control of Jitter and Wander Within Digital Networks Which are Based on the 1544 kbit/s Hierarchy - Series G: Transmission Systems and Media Digital Systems and Networks Digital Transmission Systems - Digital Networks - Quality and Availability Targets St
• ITU-T G.825-2000 The control of jitter and wander within digital networks which are based on the synchronous digital hierarchy (SDH) (Study Group 13)
• ITU-T Q.551-2002 Transmission Characteristics of Digital Exchanges (Study Group 15)

ITU-T G.812 NOTE-2005 history

• 2005 ITU-T G.812 NOTE-2005 Timing requirements of slave clocks suitable for use as node clocks in synchronization networks (Study Group 13)