YD/T 6889.1-2026Outdoor pre-terminated optical fiber distribution infrastructure for communication - Part 1: Optical fiber cable distribution box (English PDF)

YD/T 6889.1-2026 is the English-translated version of 通信用室外预成端光配线连接设施 第1部分：光缆分纤箱.

Part 1 of the series on outdoor pre-terminated optical fiber distribution infrastructure for communication covers the optical fiber cable distribution box. It specifies the composition and classification of the outdoor pre-terminated optical cable distribution box, technical requirements, test methods, inspection rules, and requirements for marking, packaging, transport and storage. Pre-terminated means that the fiber connections are made in advance, so that the box can be installed in the field without splicing on site.

The part applies to the design, production and inspection of pre-terminated optical cable distribution boxes in optical distribution networks. Manufacturers, telecom operators who buy and install them, and inspection laboratories are typical users. It is a voluntary standard (code with /T). It was approved by the Ministry of Industry and Information Technology, issued on 1 June 2026 and takes effect on 1 September 2026. It is a new standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 26 pages — is available in the English PDF.

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