光纤互连设备和无源元件 - 增强型宏弯多模光纤连接器光学接口 - 第3-81部分：物理接触式50μm纤芯直径光纤连接器参数 - 用于参考连接器应用的单排12、8、4或2芯非角度聚苯硫醚矩形套管

[中文适用范围]： IEC 63267-3-81:2025 规定了用于参考连接器的矩形套管光学接口的尺寸限制，这些连接器需满足特定的光纤间连接要求，适用于非角抛光多模参考连接器，且这些连接器拟用于按照IEC 63267-2-2所定义的衰减测量。套管的尺寸和特征包含在光纤接口标准IEC 61754系列中。本文档中定义了一种参考连接器。该参考连接器仅适用于850 nm波段的受限IEC 60793-2-10 A1-OM2b至A1-OM5b光纤。所规定的参考连接器的几何尺寸和公差主要是为了限制多个参考连接器对之间测量衰减的变化，从而限制在与现场或工厂中的连接器配对时，随机选择的参考连接器之间测量衰减的变化。 [外文原描述]： IEC 63267-3-81: 2025 defines the dimensional limits of an optical interface for reference connectors with rectangular ferrules necessary to meet specific requirements for fibre-to-fibre interconnection of non-angled polished multimode reference connectors with rectangular ferrules intended to be used for attenuation measurements as defined in IEC 63267‑2‑2. Ferrule dimensions and features are contained in the IEC 61754 series of fibre optic interface standards.One grade of reference connector is defined in this document. The reference connector is terminated to restricted IEC 60793-2-10 A1-OM2b to A1-OM5b fibre at 850 nm band only. The geometrical dimensions and tolerances of the specified reference connector have been developed primarily to limit the variation in measured attenuation between multiple sets of two reference connectors, and therefore to limit the variation in measured attenuation between randomly chosen reference connectors when mated with connectors in the field or factory.