ISO/IEC 15045-4-2:2024

Information technology - Home Electronic System (HES) gateway - Part 4-2: Structure - Simple gateway

ISO/IEC 15045-4-2:2024 specifies the simple HES gateway, which is one of a set of physical classes introduced in ISO/IEC 15045-1:2004

General Information

• Status: Published
• Publication Date: 09-Dec-2024
• ICS: 35.200 - Interface and interconnection equipment
• ICS: 35.240.99 - IT applications in other fields
• Technical Committee: SC 25 - Interconnection of information technology equipment
• Drafting Committee: WG 1 - ISO/IEC JTC 1/SC 25/WG 1
• Current Stage: PPUB - Publication issued
• Start Date: 09-Dec-2024
• Completion Date: 10-Dec-2024

Standards Content (Sample)

ISO/IEC 15045-4-2
Edition 1.0 2024-12
INTERNATIONAL
STANDARD
colour
inside
Information technology – Home Electronic System (HES) gateway –
Part 4-2: Structure – Simple gateway

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or
by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either
IEC or IEC's member National Committee in the country of the requester. If you have any questions about ISO/IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Secretariat Tel.: [phone]
3, rue de Varembé [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews, graphical symbols and the glossary.
committee, …). It also gives information on projects, replaced With a subscription you will always have access to up to date
and withdrawn publications. content tailored to your needs.

IEC Just Published - webstore.iec.ch/justpublished
Electropedia - www.electropedia.org
Stay up to date on all new IEC publications. Just Published
The world's leading online dictionary on electrotechnology,
details all new publications released. Available online and once
containing more than 22 500 terminological entries in English
a month by email.
and French, with equivalent terms in 25 additional languages.

Also known as the International Electrotechnical Vocabulary
IEC Customer Service Centre - webstore.iec.ch/csc
(IEV) online.
If you wish to give us your feedback on this publication or need

further assistance, please contact the Customer Service
Centre: [e-mail].
ISO/IEC 15045-4-2
Edition 1.0 2024-12
INTERNATIONAL
STANDARD
colour
inside
Information technology – Home Electronic System (HES) gateway –

Part 4-2: Structure – Simple gateway

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 35.200; 35.240.99 ISBN 978-2-8327-0003-7

– 2 – ISO/IEC 15045-4-2:2024 © ISO/IEC 2024
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
0.1 Overview. 5
0.2 Relation to existing work . 5
0.3 Simple gateway . 5
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 7
3.1 Terms and definitions . 7
3.2 Abbreviated terms . 8
4 Conformance . 8
5 Simple HES gateway family . 8
5.1 Simple HES gateway . 8
5.2 Simple HES gateway alternative configurations. 10
5.2.1 General . 10
5.2.2 Simple HES gateway: HAN-to-HAN (basic translator service) . 10
5.2.3 Simple HES gateway: WAN-to-HAN (basic support service) . 11
Bibliography . 13

Figure 1 – ISO/IEC 15045-4-2 within the core interoperability and HES gateway
standards . 6
Figure 2 – Two HANs . 9
Figure 3 – One WAN and one HAN . 9
Figure 4 – Logical modules for two HANs . 9
Figure 5 – Logical modules for one WAN and one HAN . 9
Figure 6 – Simple HES gateway with two HANs (basic translator service) . 10
Figure 7 – Simple HES gateway with one WAN and one HAN (basic support service) . 11

INFORMATION TECHNOLOGY –
HOME ELECTRONIC SYSTEM (HES) GATEWAY –

Part 4-2: Structure – Simple gateway

FOREWORD
1) ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission)
form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC
participate in the development of International Standards through technical committees established by the
respective organization to deal with particular fields of technical activity. ISO and IEC technical committees
collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental,
in liaison with ISO and IEC, also take part in the work.
2) The formal decisions or agreements of IEC and ISO on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested IEC and ISO National bodies.
3) IEC and ISO documents have the form of recommendations for international use and are accepted by IEC and
ISO National bodies in that sense. While all reasonable efforts are made to ensure that the technical content of
IEC and ISO documents is accurate, IEC and ISO cannot be held responsible for the way in which they are used
or for any misinterpretation by any end user.
4) In order to promote international uniformity, IEC and ISO National bodies undertake to apply IEC and ISO
documents transparently to the maximum extent possible in their national and regional publications. Any
divergence between any IEC and ISO document and the corresponding national or regional publication shall be
clearly indicated in the latter.
5) IEC and ISO do not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC and ISO marks of conformity. IEC and ISO are not
responsible for any services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this document.
7) No liability shall attach to IEC and ISO or their directors, employees, servants or agents including individual
experts and members of its technical committees and IEC and ISO National bodies for any personal injury,
property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including
legal fees) and expenses arising out of the publication, use of, or reliance upon, this ISO/IEC document or any
other IEC and ISO documents.
8) Attention is drawn to the Normative references cited in this document. Use of the referenced publications is
indispensable for the correct application of this document.
9) IEC and ISO draw attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC and ISO take no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, IEC and ISO had not received notice of
(a) patent(s), which may be required to implement this document. However, implementers are cautioned that this
may not represent the latest information, which may be obtained from the patent database available at
https://patents.iec.ch and www.iso.org/patents. IEC and ISO shall not be held responsible for identifying any or
all such patent rights.
ISO/IEC 15045-4-2 has been prepared by subcommittee 25: Interconnection of information
technology equipment, of ISO/IEC joint technical committee 1: Information technology. It is an
International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
JTC1-SC25/3192/CDV JTC1-SC25/3259/RVC

Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1, and the ISO/IEC Directives, JTC 1 Supplement
available at www.iec.ch/members_experts/refdocs and www.iso.org/directives.

– 4 – ISO/IEC 15045-4-2:2024 © ISO/IEC 2024
A list of all parts in the ISO/IEC 15045 series, published under the general title Information
technology – Home Electronic System (HES) gateway, can be found on the IEC and
ISO websites.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

INTRODUCTION
0.1 Overview
The Home Electronic System (HES) is a set of standards that supports communication, control,
and monitoring applications for homes and buildings. However, homes and buildings present a
heterogeneous and evolving networked environment, where many of these networks and
applications (including some that are based on HES standards) are not directly interoperable
with each other. HES standards achieve interoperability through the ISO/IEC 15045 series that
relies on the ISO/IEC 18012 series to support functional interworking among the dissimilar
home devices, applications, protocols, and networks found in this environment. The
ISO/IEC 15045 series and ISO/IEC 18012 series were created to render all protocols
interoperable.
The HES gateway enables an open and adaptable market for incompatible products by
specifying a standardized modular system intended to provide interoperability among the
diversity of networks found in homes and buildings. The HES interoperability process does not
require modification of the various networks, applications, or protocols that use it. Appropriate
interworking functions translate network messages through interface modules to a common
lexicon expression that is then exchanged using a private internal network bus protocol. A
protected application platform using a bus protocol supports an expanding array of services for
both the applications and the network.
In summary, the ISO/IEC 15045 series specifies a standardized modular dedicated private
internal network system that includes:
– interfaces (i.e. interface modules) for communication and semantic translation among
dissimilar home area networks (HANs), and between a HAN and external wide area
networks (WANs),
– a platform for supporting a variety of application services (service modules), and
– a secure communication path among these modules with access restricted to the
appropriate modules in order to protect data, safety and privacy.
0.2 Relation to existing work
The ISO/IEC 15045 series provides four classes representing alternative configurations for the
implementation of HES gateway physical modularity and an internal communications path:
a) simple;
b) complex-integral;
c) complex-modular;
d) interconnected.
0.3 Simple gateway
The purpose of this document is to specify requirements for the simple HES gateway that
manages and controls the communications between two networks, either two HANs or one HAN
and one WAN.
Figure 1 shows the core interoperability and HES gateway series of standards, and where this
document fits into the HES gateway series.

– 6 – ISO/IEC 15045-4-2:2024 © ISO/IEC 2024

Figure 1 – ISO/IEC 15045-4-2 within the core interoperability and
HES gateway standards
INFORMATION TECHNOLOGY –
HOME ELECTRONIC SYSTEM (HES) GATEWAY –

Part 4-2: Structure – Simple gateway

1 Scope
This document specifies the simple HES gateway, which is one of a set of physical classes
introduced in ISO/IEC 15045-1:2004.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition
...