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1.介绍1.1 目的本标准制定了光纤布线系统(如:线缆、连接头等)所用器件及传输质量的要求。线缆指50/125μm、62.5/125μm多模光缆和单模光缆。1.2 标准分类根据 EIA 工程出版物 EP-7B,标准分为两类:强制性标准和建议性标准。本标准中用“必须”表述强制性标准,可用“应该”、“可以”或“最好”表述建议性标准。强制性标准通常用于安全、性能、管理和兼容性方面的要求,它们做出的规定是对布线系统的最低要求。建议性标准提高了对布线系统的要求,使布线系统能在预期的应用中稳定工作。文本、表格和图形中的注释、强调提
1. Introduction 1.1 Purpose This standard establishes the requirements for the components and transmission quality of optical fiber cabling systems (eg cables, connectors, etc.). Cable refers to 50 / 125μm, 62.5 / 125μm multimode fiber and single mode fiber optic cable. 1.2 Standard Classification According to the EIA Engineering Publication EP-7B, the standards fall into two categories: Mandatory and Recommended. This standard uses “must ” to express mandatory standards, “should ”, “can ” or “best ” to express the proposed standard. Mandatory standards are commonly used for safety, performance, management and compliance requirements, and they set the minimum requirements for wiring systems. The proposed standard has raised the need for cabling systems, enabling cabling systems to work stably in their intended applications. Notes in text, tables, and graphics, emphasizing mention