This Recommendation outlines minimum requirements for timing devices used as node clocks in synchronization networks. The function of a node clock is to select one of the external synchronization links coming into a telecommunication station as the active synchronization reference, to attenuate its jitter and wander and subsequently to distribute the reference to the telecommunication equipment in the station. The requirements in this Recommendation apply under the normal environmental conditions specified for telecommunications equipment.
ITU-T G.812 FRENCH-2004 Referenced Document
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*, 2024-04-19 Update
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.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.810-1996 DEFINITIONS AND TERMINOLOGY FOR SYNCHRONIZATION NETWORKS 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 FRENCH-2004 history
2004ITU-T G.812 FRENCH-2004 Timing requirements of slave clocks suitable for use as node clocks in synchronization networks Study Group 15