IEC 60869-1:2018 is available as IEC 60869-1:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.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