IEC 60825-12:2022/COR2:2026

INTERNATIONAL ELECTROTECHNICAL COMMISSION
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
IEC 60825-12 IEC 60825-12
Edition 3.0  2022-12 Édition 3.0  2022-12

SAFETY OF LASER PRODUCTS SÉCURITÉ DES APPAREILS À LASER

Part 12: Safety of free space optical Partie 12: Sécurité des systèmes de
communication systems used for transmission communication optique en espace libre utilisés
of information pour la transmission d'informations

CO RRI G E NDUM 2
Corrections to the French version appear after the English text.
Les corrections à la version française sont données après le texte anglais.

Table 1 – Measurement aperture diameters and distances for the default (simplified)
evaluation
Delete, in footnote a, the following text:
"This is represented by a 3,5 mm aperture stop at a distance of 35 mm or 14 mm from the end
of the fibre. The aperture stop diameter of 3,5 mm (rather than 7 mm) is used because
magnifying optics would only be used in a situation where there is sufficient light, and thus the
pupil would be constricted. Also note that when multimode fibres having large core diameters
are used for OFCSs, the mitigating effect of the large angular subtense may be considered."
Replace the last footnote b with footnote c.
4.3 Access level 1 and 1M
Replace the 2nd paragraph with the following:
"For wavelengths between 302,5 nm and 4 000 nm, if the accessible emission is:
– less than or equal to the AEL of Class 1 for Condition 1, and Condition 2 and Condition 3,
then the FSOCS is assigned to access level 1."
8.1 General
Replace, in the 4th paragraph, the last sentence with the following:
"This is because access level is a feature of the (end-to-end) FSOCS, and depends on system
wide features such as APR and IPS."
IEC 60825-12:2022-12/COR2:2026-01(en-fr)

Table 4 – Marking requirements
Replace, in the row for access level 2M, the warning text with the following:
"CAUTION
b
ACCESS LEVEL 2M LASER RADIATION
DO NOT STARE INTO BEAM OR VIEW
DIRECTLY WITH NON-ATTENUATING OPTICAL INSTRUMENTS"
Replace, in the row for access level 3R, the warning text with the following:
"CAUTION
b
ACCESS LEVEL 3R LASER RADIATION
AVOID DIRECT EYE EXPOSURE"
8.4 Warning for invisible radiation
Replace, in the first paragraph, the first sentence with the following:
"If the output of the laser is outside the wavelength range 400 nm to 700 nm, the wording 'laser
radiation' in the markings in Table 4 shall be modified to read 'invisible laser radiation', or if the
output is at wavelengths both inside and outside this wavelength range, to read 'visible and
invisible laser radiation'."
Annex A Rationale
Replace, in the third paragraph, the last sentence with the following:
"These access levels are defined as access level 1, 1M, 2, 2M, 3R
...