IEC 62949:2017

Particular safety requirements for equipment to be connected to information and communication technology networks

IEC 62949:2017 applies to the interface of equipment designed and intended to be connected as a communication terminal to an information and communication technology (ICT) network termination.
This document does not apply to:
- equipment covered by IEC 62368-1; or
- interfaces to other networks.
This document specifies the safety requirements of the interface to the ICT network only. Requirements additional to those specified in this document may be necessary for equipment intended for operation while exposed, for example, to extremes of temperature, to excessive dust, moisture, or vibration, to flammable gases, to corrosive or explosive atmospheres and electro medical applications with physical connections to the patient. The following requirements are not covered by this document:
- functional safety of equipment;
- functional reliability of equipment;
- communication facilities with remote supply using hazardous voltage;
- protection of equipment connected to ICT networks from functional damage.

Exigences de sécurité spécifiques pour les équipements destinés à être connectés aux réseaux d'information et de communication

IEC 62949:2017 s’applique à l’interface de l’équipement conçu et prévu pour être connecté en tant que terminal de communication à une terminaison de réseau des technologies de l’information et de la communication (TIC). Le présent document ne s’applique pas:
- aux équipements couverts par l’IEC 62368-1; et
- aux interfaces connectées à d’autres réseaux. Le présent document spécifie les exigences de sécurité de l’interface au réseau des TIC. Des exigences venant s’ajouter à celles spécifiées dans le présent document peuvent être nécessaires pour les équipements destinés à fonctionner en étant exposés, par exemple, à des températures extrêmes, à une poussière, une humidité ou une vibration excessive, à des gaz inflammables ou à des atmosphères corrosives ou explosives, les applications électromédicales connectées physiquement au patient. Les exigences suivantes ne sont pas couvertes par le présent document:
- la sécurité fonctionnelle des équipements;
- la fiabilité fonctionnelle des équipements;
- les installations de communications avec une alimentation à distance utilisant une tension dangereuse;
- la protection des équipements connectés aux réseaux des TIC contre les dommages fonctionnels.
Mots clés: audio/vidéo, terminal de communication, réseau des TIC, circuits externes

General Information

• Status: Published
• Publication Date: 19-Jan-2017
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 33.160 - Audio, video and audiovisual engineering
• ICS: 35.020 - Information technology (IT) in general
• Technical Committee: TC 108 - Safety of electronic equipment within the field of audio/video, information technology and communication technology
• Drafting Committee: WG 11 - TC 108/WG 11
• Current Stage: PPUB - Publication issued
• Start Date: 18-Jan-2017
• Completion Date: 20-Jan-2017

Standards Content (Sample)

IEC 62949 ®
Edition 1.0 2017-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Particular safety requirements for equipment to be connected to information
and communication networks
Exigences de sécurité spécifiques pour les équipements destinés à être
connectés aux réseaux d’information et de communication

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IEC 62949 ®
Edition 1.0 2017-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Particular safety requirements for equipment to be connected to information

and communication networks
Exigences de sécurité spécifiques pour les équipements destinés à être

connectés aux réseaux d’information et de communication

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.160; 35.020 ISBN 978-2-8322-3790-8

– 2 – IEC 62949:2017 © IEC 2017
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Safety requirements and compliance criteria. 8
4.1 General . 8
4.2 Interconnection of equipment . 9
4.2.1 General requirements . 9
4.2.2 Types of interconnection circuits . 9
4.3 ES1 circuits . 9
4.3.1 Limits . 9
4.3.2 Protection against contact with ES1 circuits . 9
4.4 ES2 circuits . 9
4.4.1 Limits . 9
4.4.2 Protection against contact with ES2 circuits . 9
4.5 ES3 circuits . 9
4.5.1 Limits . 9
4.5.2 Protection against contact with ES3 circuits . 9
4.6 Protection from hazards in the equipment for persons servicing ICT networks,
and users of other equipment connected to the network . 10
4.6.1 Protection from ES3. 10
4.6.2 Separation of the ICT network from earth . 10
4.6.3 Touch current to ICT networks . 10
4.6.4 Summation of touch currents from ICT networks . 10
4.7 Protection of equipment users from overvoltages on ICT networks . 10
4.8 Protection of the wiring system of an ICT network from overheating . 10
Annex A (informative) Relevant safety standards for the application of this document . 11
Annex B (informative) ICT network voltages and signals . 12
B.1 General . 12
B.2 Contact with operating voltages on ICT networks . 13
Annex C (informative) Comparison of terms and definitions introduced in this
document . 15
C.1 General . 15
C.2 Comparison of terms and definitions . 15
Annex D (informative) Overview of networks . 22
Bibliography . 23

Figure B.1 – Current limit curves . 13
Figure D.1 – Overview of network . 22

Table C.1 – Comparison of terms and definitions in IEC 60950-1:2005 and
IEC 62368-1:2014 . 16
Table C.2 – Comparison of terms and definitions in IEC 62151:2000 and IEC 62368-
1:2014 . 19

– 4 – IEC 62949:2017 © IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PARTICULAR SAFETY REQUIREMENTS FOR EQUIPMENT TO BE
CONNECTED TO INFORMATION AND COMMUNICATION NETWORKS

FOREWORD
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