scope:

This part of IEC 60869 applies to fibre optic attenuators. These have all of the following general features:

- they are passive in that they contain no opto-electronic or other transducing elements;

- they have two ports for the transmission of optical power and attenuate the transmitted power in a fixed or variable fashion;

- the ports are optical fibres or optical fibre connectors.

This standard establishes uniform requirements for the following:

- attenuator requirements; 

- quality assessment procedures.

This standard does not cover test and measurement procedures, which are described in IEC 61300-1, in the serie IEC 61300-2 and the serie 61300-3.