FprEN IEC 60825-12:2022

SLOVENSKI STANDARD
oSIST prEN IEC 60825-12:2022
01-januar-2022
Varnost laserskih izdelkov - 12. del: Varnost optičnih komunikacijskih sistemov v
prostem prostoru, ki se uporabljajo za prenos informacij
Safety of laser products - Part 12: Safety of free space optical communication systems
used for transmission of information
Sicherheit von Lasereinrichtungen - Teil 12: Sicherheit von optischen
Freiraumkommunikationssystemen für die Informationsübertragung
Sécurité des appareils à laser - Partie 12 : Sécurité des systèmes de communication
optiques en espace libre utilisés pour la transmission d'informations
Ta slovenski standard je istoveten z: prEN IEC 60825-12:2021
ICS:
31.260 Optoelektronika, laserska Optoelectronics. Laser
oprema equipment
33.180.01 Sistemi z optičnimi vlakni na Fibre optic systems in
splošno general
oSIST prEN IEC 60825-12:2022 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 60825-12:2022
oSIST prEN IEC 60825-12:2022
76/687/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60825-12 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2021-11-05 2022-01-28
SUPERSEDES DOCUMENTS:
76/655/CD, 76/663A/CC
IEC TC 76 : OPTICAL RADIATION SAFETY AND LASER EQUIPMENT
SECRETARIAT: SECRETARY:
United States of America Mr William Ertle
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

TC 108
Other TC/SCs are requested to indicate their interest, if any,
in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for
Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they
are aware and to provide supporting documentation.

TITLE:
Safety of laser products - Part 12: Safety of free space optical communication systems used for
transmission of information
PROPOSED STABILITY DATE: 2026
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

oSIST prEN IEC 60825-12:2022
IEC CDV 60825-12 ED 3.0 © IEC 2021 – 2 – 76/687/CDV

2 CONTENTS
4 FOREWORD . 4
5 INTRODUCTION . 6
6 1 Scope . 7
7 2 Normative references . 7
8 3 Terms and definitions . 7
9 4 Assessment of access level . 12
10 4.1 General . 12
11 4.2 Determination of access level and the use of Condition 2 . 12
12 4.3 Access level 1 and 1M . 14
13 4.4 Access level 2 and 2M . 14
14 4.5 Access level 3R . 15
15 4.6 Access level 3B . 15
16 4.7 Access level 4 . 15
17 4.8 Time base . 15
18 5 Classification and evaluation of access level . 16
19 5.1 General . 16
20 5.2 Impact of using automatic power reduction features . 16
21 5.3 Automatic power reduction mechanisms (APR) . 16
22 5.3.1 General . 16
23 5.3.2 APR performance requirements . 17
24 5.4 Installation protection systems (IPS) . 18
25 6 Access level and classification requirements by location type . 18
26 6.1 General . 18
27 6.2 Requirements for unrestricted locations . 21
28 6.2.1 General . 21
29 6.2.2 Use of access level 1M and access level 2M FSOCS equipment in unrestricted
30 locations . 23
31 6.2.3 Use of access level 3R FSOCS equipment in unrestricted locations . 25
32 6.3 Requirements for restricted locations . 26
33 6.3.1 General . 26
34 6.3.2 Use of access level 3R FSOCS equipment in restricted locations . 26
35 6.4 Requirements for controlled locations . 27
36 6.4.1 General . 27
37 6.4.2 Use of access level 3B and access level 4 FSOCS equipment in controlled
38 locations . 28
39 6.5 Requirements for inaccessible space . 28
40 6.6 Specular reflections . 28
41 7 Organizational requirements . 29
42 7.1 Requirements for manufacturers of ready-to-use FSOCS transmitter or turn key
43 systems . 29
44 7.1.1 General . 29
45 7.1.2 Additional manufacturer’s instructions . 29
46 7.2 Installation and service organization requirements . 30

oSIST prEN IEC 60825-12:2022
IEC CDV 60825-12 ED 3.0 © IEC 2021 – 3 – 76/687/CDV

47 7.3 Operating organization requirements . 31
48 8 Marking . 32
49 8.1 General . 32
50 8.2 Marking of aperture for transmitter . 34
51 8.3 Durability – Indelibility requirements for safety markings . 34
52 8.4 Warning for invisible radiation . 34
53 Annex A (informative) Rationale . 35
54 Annex B (informative) Clarification of the meaning of “access level” . 36
55 B.1 General . 36
56 B.2 Class . 36
57 B.3 Access level . 36
58 Annex C (informative) Examples of applications and calculations . 37
59 C.1 Examples of NHZ and ENHZ . 37
60 C.2 Viewing a specular (mirror-like) reflection . 39
61 C.3 Example of divergent, diffuse IR transmitter . 39
62 C.4 FSOCS link between two restricted locations . 40
63 C.5 Unmanned Aerial System (UAS) . 43
64 Annex D (informative) Methods of hazard/safety analysis . 47
65 Annex E (informative) Guidance for installing, servicing and operating organizations . 48
66 E.1 Working practices for FSOCSs. 48
67 E.1.1 General . 48
68 E.1.2 General working practices . 48
69 E.1.3 Additional working practices for Class/access level 1M, 2M, 3R, 3B and 4
70 systems . 48
71 E.2 Education and training . 49
72 Bibliography . 50
74 Figure 1 – Commercial structures . 19
75 Figure 2 – Residential areas . 20
76 Figure 3 – Examples of external location types . 22
77 Figure 4 – Access level 1M or 2M transmitter near edge of unrestricted rooftop . 24
78 Figure 5 – Access level 1M transmitter in unrestricted location . 25
79 Figure 6 – Access level 3R transmitter in restricted location . 27
80 Figure C.1 Link between two widely separated locations . 41
81 Figure C.2 Unmanned Aerial System with FSOCS . 44
82 Figure C.3 Grounded FSOCS installed to the ground . 45
83 Figure C.4 Grounded FSOCS installed to the controlled location . 45
85 Table 1 – Measurement aperture diameters and distances for the default (simplified)
86 evaluation . 13
87 Table 2 – Restrictions for the use of FSOCS based on their access levels . 21
88 Table 2 – Requirements for warning signs . 31
89 Table 4 – Marking requirements . 33
90 Table. C.1 Allowed access levels and installation requirements . 46

oSIST prEN IEC 60825-12:2022
IEC CDV 60825-12 ED 3.0 © IEC 2021 – 4 – 76/687/CDV

91 INTERNATIONAL ELECTROTECHNICAL COMMISSION
92 ____________
94 SAFETY OF LASER PRODUCTS –
96 Part 12: Safety of free space optical communication systems
97 used for transmission of information
99 FOREWORD
100 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national
101 electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all
102 questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities,
103 IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS)
104 and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC
105 National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental
106 and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with
107 the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between
108 the two organizations.
109 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus
110 of opinion on the relevant subjects since each technical committee has representation from all interested IEC Nat
...