ISO/IEC 17982:2021

INTERNATIONAL ISO/IEC
STANDARD 17982
Second edition
2021-04
Information technology —
Telecommunications and information
exchange between systems — Close
capacitive coupling communication
physical layer (CCCC PHY)
Technologies de l'information — Téléinformatique — Couche
physique pour communication par couplage capacitif fermé
Reference number
©
ISO/IEC 2021
© ISO/IEC 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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ii © ISO/IEC 2021 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 1
4 Conventions and notations . 2
5 Conformance . 2
6 Architecture . 2
7 Reference plate-electrode assembly . 5
8 PHY parameters . 6
8.1 Voltage conditions . 6
8.2 Bit representation . 6
8.2.1 Bit duration. 6
8.2.2 Bit encoding . 7
8.3 Transmission . 7
8.4 DC balance of a P-PDU . 7
8.5 Reception of a P-PDU . 8
9 P-PDU . 8
9.1 Structure . 8
9.2 Space . 8
9.3 Level adjust . 8
9.4 Pre-amble and Sync . 9
9.5 Attribute . 9
9.6 TDS number .10
9.7 Sequence number .10
9.7.1 Initial and range .10
9.7.2 Acknowledgement .10
9.8 Payload .10
9.9 CRC .10
9.10 Post-amble .10
9.11 Null P-PDU .10
9.12 Data P-PDU .10
10 PHY data unit (P-DU) .10
11 Segmentation and reassembly .11
12 TDS .11
13 LBT and synchronisation .12
13.1 LBT .12
13.2 Synchronisation .12
14 Association procedure .13
15 Communication .15
15.1 General .15
15.2 Full duplex communication.15
15.3 Broadcast communication .17
Annex A (normative) Tests .19
Annex B (informative) Guidance for implementation of this document .57
Bibliography .58
© ISO/IEC 2021 – All rights reserved iii

Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are
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The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for
the different types of document should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives or www .iec .ch/ members
_experts/ refdocs).
Attention is drawn to the possibility that some of the elements of this document may be the subject
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World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso .org/
iso/ foreword .html. In the IEC, see www .iec .ch/ understanding -standards.
This document was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 6, Telecommunications and information exchange between systems in cooperation with
Ecma International.
This second edition cancels and replaces the first edition (ISO/IEC 17982:2012), which has been
technically revised.
The main changes compared to the previous edition are as follows:
— The document has been fully aligned with the editorial rules in ISO/IEC Directives, Part 2.
— Annex B has been added to guide an implementation for small size and low power devices.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html and www .iec .ch/ national
-committees.
iv © ISO/IEC 2021 – All rights reserved

INTERNATIONAL STANDARD ISO/IEC 17982:2021(E)
Information technology — Telecommunications and
information exchange between systems — Close capacitive
coupling communication physical layer (CCCC PHY)
1 Scope
This document specifies the close capacitive coupling communication physical layer (CCCC PHY) for full
duplex and broadcast communication in time slots on frequency division multiplex channels.
NOTE An implementation for small size and low power devices is provided in Annex B.
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 of the referenced document (including any amendments) applies.
ISO/IEC 7498-1, Information technology — Open Systems Interconnection — Basic Reference Model: The
Basic Model
ITU-T Rec. V.41, Data communication over the telephone network — Code-independent
...