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IEC 60869-1:2018 applies to fibre optic passive power control devices. These have all of the following general features:
. they are passive in that they contain no optoelectronic or other transducing elements;
. they have two ports for the transmission of optical power and control of the transmitted power in a fixed or variable fashion;
. the ports are non-connectorized optical fibre pigtails, connectorized optical fibres or receptacles.
This document establishes generic requirements for the following passive optical devices:
. optical attenuator;
. optical fuse;
. optical power limiter.
This document also provides generic information including terminology for the IEC 61753-05x series. Published IEC 61753-05x series documents are listed in Bibliography
This fifth edition cancels and replaces the fourth edition published in 2012 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) the terms and definitions have been reviewed;
b) the requirement concerning the IEC Quality Assessment System has been reviewed;
c) the clause concerning quality assessment procedures has been deleted;
d) Annex G, relating to technical information on variable optical attenuators, has been added.

Keywords: fibre optic passive power control devices