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Publication details

Publication CODE Title
NBN EN IEC 61280-4-3:2022 (2022-09) FIBRE OPTIC COMMUNICATION SUBSYSTEM TEST PROCEDURES - PART 4-3: INSTALLED PASSIVE OPTICAL NETWORKS - ATTENUATION AND OPTICAL RETURN LOSS MEASUREMENTS
 
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16.00 € 4.
Description
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.
Class  C
Available files
ATTENTION: Belgian registered standards (NBN EN or NBN HD) are generally only available in English or French. Only the cover page is translated and the document itself is in English or in French.

EN version
FR version
Status
Status IEC PUBLICATION
Situation Currently active
Origin
Committee CLC/SR 86C
Fibre optic systems and active devices
Approval
BEC Approval 2022-09-02
NBN Approval 2022-09-21
NBN Status New
Date of ratification (d.o.r.) 2022-09-02
Date of announcement (d.o.a.) 2022-12-02
Date of publication (d.o.p.) 2023-06-02
Date of withdrawal former edition (d.o.w.) 2025-09-02
IEC file modification date 2022-09-17