This part of IEC 60793-2 is applicable to optical fibre categories A4a, A4b, A4c, A4d, A4e,
A4f, A4g and A4h. These fibres have a plastic core and plastic cladding and may have stepindex,
multi-step index, or graded-index profiles. The fibres are used in information
transmission equipment and optical fibre cables.
support for short reach high bit-rate systems in telephony,
distribution and local networks, carrying data, voice and/or video services and on-premises
intrabuilding and interbuilding fibre installations, including LANs, PBXs, video, various
multiplexing uses, and miscellaneous related uses, such as consumer electronics and
industrial and mobile networks.
Informative Annex J shows typical characteristics and requirements for some buffered A4
fibres. The actual requirements are specified in the buffered fibre document IEC 60794-2-41.
Copyright InternationalThree types of requirements apply to A4 fibres:
? general requirements, as defined in IEC 60793-2;
? specific requirements common to category A4 multimode fibres covered in this standard
and that are given in Clause 3;
? particular requirements applicable to individual fibre types or specific applications and that
are defined in this standard in the normative family specification annexes.