GB/T 9771.2-2020
Single-mode optical fibres for telecommunication—Part 2: Characteristics of a cut-off wavelength shifted single-mode optical fibre (English Version)

Standard No.

GB/T 9771.2-2020

Language

Chinese, Available in English version

Release Date

2020

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Latest

GB/T 9771.2-2020

Replace

GB/T 9771.2-2008

Scope

This part of GB/T9771 specifies the classification, rounding rules, requirements and test methods for category B1.2 cutoff wavelength shifted single-mode optical fiber. This section applies to category B1.2 single-mode optical fibers used in communication optical cables and other information transmission equipment. Among them, B1.2a, B1.2b, B1.2c, and B1.2d are more suitable for submarine communication optical cables, and B1.2e is suitable for land long-distance trunk optical cables. Note: The fiber size parameters and transmission characteristics in this section refer to ITUTG. 654 (2016) in G. For the specifications of Category 654 optical fiber characteristics, the mechanical and environmental performance of optical fibers refer to the provisions of Category B1.2 optical fibers in IEC60793250:2015.

GB/T 9771.2-2020 Referenced Document

• GB/T 33779.1 Guidance for special characteristics of optical fibre—Part 1: Attenuation uniformity
• GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values

GB/T 9771.2-2020 history

• 2020 GB/T 9771.2-2020 Single-mode optical fibres for telecommunication—Part 2: Characteristics of a cut-off wavelength shifted single-mode optical fibre
• 2008 GB/T 9771.2-2008 Single-mode optical fibres for telecommunication.Part 2:Charaterisics of a cut-off wavelength shifted single-mode optical fibre
• 2000 GB/T 9771.2-2000 The series of single-mode optical fibres for telecommunication Part 2:Characteristics of a cut-off wavelength shifted single-mode optical fibre

GB/T 9771.2-2020 -All Parts