ITU-T G.811.1 (ePRTC) One-Page Summary

Title: Timing characteristics of enhanced primary reference clocks

Summary

• Enhanced Primary Reference Clock equipment specification

• Provides an accurate frequency reference into the network, using either 1pps or PTP output

Status

• Current version: 1st. Edition, August 2017
• Download from: http://www.itu.int/ITU-T/recommendations/rec.aspx?rec=13301

Key Contents

Frequency Accuracy

• Fractional frequency offset: 1 part in 10¹² (observation times greater than 1 week)

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