本技术报告增强了光纤通道物理层中的抖动和信号规格 层标准和技术报告中的抖动规范（MJS）方法。它提供 扩展了定义和测试方法，以更有效地执行相关规范 高速串行信号的相位定时特性。抖动概念的概括，包括 在标称接收器检测阈值之外发生的事件提供了更强的耦合 在信号中测得的抖动和信号接收器产生的误差之间。所描述的方法使用结构化方法来描述识别测试夹具、仪器和校准方案对报告值的贡献的测试。 尽管本报告使用 1.0625 GBd对于某些示例，它完全适用于远远超过现有速度的速度 FC-PI-n中的4.25 GBd抖动规范。

This technical report enhances the jitter and signal specifications found in the Fibre Channel Physical layer standards and in the technical report Methodologies for Jitter Specification (MJS). It provides extended definitions and test methodologies to enable more effective execution of specifications relating to the phase timing features of high speed serial signals. A generalization of jitter concepts to include events that occur at other than the nominal receiver detection threshold provides a stronger coupling between the jitter measured in a signal and the errors produced by the receiver of the signal. The methodologies described use a structured approach to describe the tests that recognize the contributions from test fixtures, instrumentation and calibration schemes to the reported values. Although this report uses 1.0625 GBd for some examples it is intended to be fully applicable to speeds well in excess of the existing 4.25 GBd jitter specifications in FC-PI-n.