IEC 61300-3-30:2020 RLV包含官方IEC国际标准及其红线版本。Redline版本仅提供英文版本，为您提供了一种快速简单的方法来比较IEC官方标准与其以前版本之间的所有变化。 IEC 61300-3-30:2020描述了一种测量具有IEC定义的光学接口的矩形多光纤套圈的端面几何形状的方法。主要属性是光纤相对于端面的位置（缩回或突出）、端面相对于导销孔的角度、光纤尖端半径和多模光纤的纤芯倾角。这第二版取消并取代了2003年出版的第一版。本版构成技术修订版。与上一版相比，此版本包括以下重大技术变更:-单个纤维尖端半径的测量； -几何极限(GL)度量的引入； -引入负共面性度量； -测量岩心倾角的新方法； -MM和SM纤维的所有测量区域现在都是相同的； -套圈表面角度符号约定已更改。

IEC 61300-3-30:2020 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.

IEC 61300-3-30:2020 describes a method of measuring the end face geometry of rectangular multifibre ferrules having an IEC defined optical interface. The primary attributes are fibre position relative to the end face, either withdrawal or protrusion, end face angle relative to the guide pin bores, fibre tip radii and core dip for multimode fibres. This second edition cancels and replaces the first edition published in 2003. This edition constitutes a technical revision.This edition includes the following significant technical changes with respect to the previous edition:
- measurement of the individual fibre tip radii;
- introduction of the geometry limit (GL) metric;
- introduction of the minus coplanarity metric;
- new method for measuring the core dips;
- all measurement regions are now identical for MM and SM fibres;
- the ferrule surface angle sign convention has been changed.