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
This Recommendation outlines the requirements for Primary Reference Clocks (PRCs) suitable for synchronization supply to digital networks. These requirements apply under the normal environmental conditions specified for digital equipment.
ITU-T G.811-1997 history
1997ITU-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