IEC 60793-1-40:2001

IEC 60793-1-40:2001

July 2001
International standard Cancelled

Optical fibres - Part 1-40: Measurement methods and test procedures - Attenuation

Establishes uniform requirements for measuring the attenuation of optical fibres. Four methods are described: (a) cut-back, (b) insertion loss, (d) backscattering, (d) modelling spectral attenuation. Methods (a), (b) and (c) apply to all categories of class A multimode fibres and class B single-mode fibres. Method (c), backscattering, also covers the location, losses and characterization of point discontinuities. Method (d) has been demonstrated only on class B fibres.

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International IEC standards

Publication date

July 2001

Number of pages

57 p.

Reference

IEC 60793-1-40:2001

ICS Codes

33.180.10   Fibres and cables
Sumary
Optical fibres - Part 1-40: Measurement methods and test procedures - Attenuation

Establishes uniform requirements for measuring the attenuation of optical fibres. Four methods are described: (a) cut-back, (b) insertion loss, (d) backscattering, (d) modelling spectral attenuation. Methods (a), (b) and (c) apply to all categories of class A multimode fibres and class B single-mode fibres. Method (c), backscattering, also covers the location, losses and characterization of point discontinuities. Method (d) has been demonstrated only on class B fibres.
Replaced standards (4)
IEC 60793-1-4:1995
December 1995
International standard Cancelled
Optical fibres - Part 1: Generic specification - Section 4: Measuring methods for transmission and optical characteristics

Applies to the practical measurements of transmission and optical parameters of fibre. The methods are to be used for inspection of fibres and cables for commercial purposes. to establish uniform requirements.

IEC 60793-1-4:1995/AMD2:1998
January 1998
International standard Cancelled
Amendment 2 - Optical fibres - Part 1: Generic specification - Section 4: Measuring methods for transmission and optical characteristics

IEC 60793-1-4:2001
February 2001
International standard Cancelled
Optical fibres - Part 1-4: Generic specification - Measuring methods for transmission and optical characteristics

Applies to practical measurements of transmission and optical parameters of fibres. The methods are for use in inspection of fibres and cables for commercial purposes.

IEC 60793-1-4:1995/AMD1:1996
August 1996
International standard Cancelled
Amendment 1 - Optical fibres - Part 1: Generic specification - Section 4: Measuring methods for transmission and optical characteristics

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Standard replaced by (1)
IEC 60793-1-40:2019
March 2019
International standard Cancelled
Optical fibres - Part 1-40: Attenuation measurement methods

IEC 60793-1-40:2019 establishes uniform requirements for measuring the attenuation of optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes. Four methods are described for measuring attenuation, one being that for modelling spectral attenuation: – method A: cut-back; – method B: insertion loss; – method C: backscattering; – method D: modelling spectral attenuation. Methods A to C apply to the measurement of attenuation for all categories of the following fibres: – class A multimode fibres; – class B single-mode fibres. Method C, backscattering, also covers the location, losses and characterization of point discontinuities. Method D is applicable only to class B fibres. Information common to all four methods appears in Clauses 1 to 11, and information pertaining to each individual method appears in Annexes A, B, C, and D, respectively. This second edition cancels and replaces the first edition published in 2001. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Improvement of the description of measurement details for B6 fibre; b) Improvement of the calibration requirements for A4 fibre; c) Introduction of Annex E describing examples of short cable test results on A1 multimode fibres. Keywords: measuring the attenuation of optical fibre

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