Fibre optic communication subsystem test procedures - Part 4-3: Installed passive optical networks - Attenuation and optical return loss measurements
文件核验信息（付费前可核对）
标准范围（官方英文摘要）
IEC 61280-4-3: 2022 describes the measurement of attenuation, optical return loss and optical power in installed passive optical networks (PONs) using single-mode fibre. This document specifies two methods for measuring the attenuation before activation of the PON:
method A: one-cord method using a light source and a power meter (LSPM);
method B: optical time-domain reflectometer (OTDR) method in upstream direction only, with reduction of uncertainties due to the variation of backscatter coefficient.
In addition, method C, which is described in informative Annex C, provides an estimate of the attenuation after partial activation of the PON by using a U band filtered optical time-domain reflectometer (FOTDR) in an upstream direction.
This publication contains an attached file titled "Supplemental Data" in the form of an Excel spread sheet. This file is intended to be used as a complement and does not form an integral part of the standard.
标准信息
- 标准号
- IEC 61280-4-3:2022
- 英文标题
- Fibre optic communication subsystem test procedures - Part 4-3: Installed passive optical networks - Attenuation and optical return loss measurements
- 发布单位
- —
- 技术委员会
- TC 86/SC 86C
- 版本 / 版次
- 1.0
- 状态
- 现行
- 发布日期
- 2022
- ICS 分类
- 33.180.01 光纤系统综合
- 页数
- 113 页
- 官方定价
- CHF 300
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