光纤 - 第2-60部分：产品规范 - C 类互连多模光纤规格 (IEC 60793-2-60:2025; EN IEC 60793-2-60:2025)

[中文适用范围]： IEC 60793-2-60:2025 标准适用于表1所述的C1、C2、C3和C4四类光纤。此类光纤主要用于光学组件系统内部或系统间的互连，旨在支持高密度光连接。光纤可涂覆二次涂层或加缓冲层以制作受保护的尾纤，亦可不加涂覆层使用，但允许进行色标处理。本第二版取代了2008年发布的第一版，属于技术修订版。与前一版相比，本版主要技术变更如下：a) 将“内连接”改为“互连”，并新增互连光纤的定义；b) 调整C1光纤模场直径（MFD）的标称限值；c) 新增C类光纤的着色一次涂层直径限值，并更改C_80类光纤的无色一次涂层直径限值；d) 调整C1、C2及C3类光纤的涂层剥离力限值；e) 将“光纤截止波长”替换为“光缆截止波长”，并修订表6附注b；f) 将“光纤截止波长”替换为“光缆截止波长”，并删除表8中的附注；g) 在表A.1中新增C1_125光纤200 μm涂层直径要求，并调整C1_80光纤的涂层直径限值；h) 在表A.2和表A.5中新增C1_125光纤200 μm涂层直径要求，并调整涂层剥离力限值；i) 将“光纤截止波长”替换为“光缆截止波长”，修订光缆截止波长限值，并在表A.3中新增附注；j) 在表A.4中增加C1光纤1625 nm波长的传输要求，并删除1310 nm波长要求；k) 修订表C.3中C3光纤的截止波长限值；l) 在表D.3中将C4光纤的“光纤截止波长”替换为“光缆截止波长”。 [外文原描述]： IEC 60793-2-60:2025 is applicable to optical fibre types C1, C2, C3, and C4, as described in Table 1. These fibres are used for the interconnections within or between optical components systems and are optimized to support dense optical connectivity. While the fibres can be overcoated or buffered for the purpose of making protected pigtails, they can be used without overcoating. They can, however, be colour coded. This second edition cancels and replaces the first edition published in 2008. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) replacement of "intraconnection" with "interconnection" and addition of the definition of "interconnection fibres"; b) modification of the nominal MFD limit of C1 fibres; c) addition of "Primary coating diameter-coloured" limits for class C fibres and change of "Primary coating diameter-uncoloured" limits for class C_80 fibres; d) change of coating strip force limits for class C1, class C2, and class C3 fibres; e) replacement of "Fibre cut-off wavelength" with "Cable cut-off wavelength" and revision of "Note b" in Table 6; f) replacement of "Fibre cut-off wavelength" with "Cable cut-off wavelength" and deletion of the "Note" in Table 8; g) addition of 200 μm coating diameter requirements for C1_125 fibres and change of coating diameters limits for C1_80 fibres in Table A.1; h) addition of 200 µm coating diameter requirements for C1_125 fibres and change of coating strip force limits in Table A.2 and in Table A.5; i) replacement of "Fibre cut-off wavelength" with "Cable cut-off wavelength", modification of the "Cable cut-off wavelength" limit and addition of a new "Note" in Table A.3; j) addition of a transmission requirements at 1 625 nm and deletion of 1 310 nm for C1 fibres in Table A.4; k) modification of "Fibre cut-off wavelength" limits of C3 fibres in Table C.3; l) replacement of "Fibre cut-off wavelength" with "Cable cut-off wavelength" for C4 fibres in Table D.3.