This document is an INCITS technical report on the definitions and measurement requirements for parametersrelated to signal quality on FC links. The document describes measurement methods for non-equalizedand equalized links. The document describes new types of jitter associated with reference receiversand methods for determining signal quality in closed eye systems. MSQS does not supersede the previouslypublished Fibre Channel Methodologies for Jitter and Signal Quality Specification technical report(hereinafter referred to as FC-MJSQ). MSQS represents additional information and methods that arenot included in FC-MJSQ.This technical report compiles and provides additional information beyond that supplied in FC-MJSQ toprovide definitions for the physical interface parameters used in FC-PI-5 [7]. The existing signal and jitterspecifications are incomplete as a result of changes in how the electronics industry is implementing FibreChannel systems today compared to how systems were expected to be implemented in the past. Examplesof such changes are the use of adaptive or predictive compensation schemes implemented in activeelements or ports, and higher speed operation at longer distance.The goals of this technical report are:•To specify budget methods for equalized and non-equalized links•To define and describe the relationships between different kinds of jitter•To document the jitter and signal quality measurement requirements that allow Fibre Channel developersto design low-cost, multi-gigabaud links having bit error ratios below 10 using interoperableand interchangeable components between the interoperability points•To specify measurement methods that are reproducible and that more closely relate to observed biterror ratios in operating links•To specify channel characteristics that previously have not been addressed in FC-MJSQ.•To specify test patterns for scrambled and unscrambled links.•To specify and describe methods of measurement for links using a reference receiver.•To enable standardized specification enforcement for compliance testing.The Methods for Signal Quality Specification (MSQS) technical report is generated by an Ad Hoc group ofcompanies interested in providing a standard low cost interface for FC applications. This Ad Hoc group issanctioned by and operates under the jurisdiction of the T11.2 technical committee of INCITS.This technical report is informative. Certain contents of this document may be normatively referenced orincorporated into appropriate standards.
ANSI/INCITS TR 46-2011 Referenced Document
IEC 61280-1-3 Fibre optic communication subsystem test procedures - Part 1-3: General communication subsystems - Measurement of central wavelength, spectral width and additional spectral characteristics*， 2021-07-05 Update
IEC 61280-2-2 Fibre optic communication subsystem test procedures - Part 2-2: Digital systems - Optical eye pattern, waveform and extinction ratio measurement; Corrigendum 1*， 2015-02-01 Update
IEEE 802.3-2008 Information technology-Telecommunications and information exchange between systems-Local and metropolitan area networks-Specific requirements Part 3: Carrier sense multiple access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifi*， 2008-09-26 Update
1970ANSI/INCITS TR 46-2011 INCITS Technical Report for Information Technology. Fibre Channel . Methodologies for Signal Quality Specification (FC-MSQS)