本文件描述了一种推荐的方法，用于建模和测量电信网络中从时钟设备的性能。该方法由T1X1开发。3 ANSI认证委员会T1 Telecommunications的同步工作组基于对实际网络环境中从时钟性能的持续研究。人们认识到，当前的从时钟标准不足以确保未来网络中可接受的定时性能。本文介绍的方法可能是增强ANSI T1中当前时钟规范的基础。 101-1987

This document describes a recommended methodology for modeling and measuring the performance of slave stratum clock equipment in telecommunication networks. This methodology has been developed by the T1X1.3 Synchronization Working Group of ANSI accredited committee T1 Telecommunications based on an ongoing study of the performance of slave clocks in actual network environments. It is recognized that current slave clock standards are not adequate to ensure acceptable timing performance in future networks. The methodology presented here may be the basis of enhancing the current stratum clock specifications in ANSI T1.101-1987