GB/T 42756.2-2023Cards and security devices for personal identification - Contactless proximity objects - Part 2: Radio frequency power and signal interface (English PDF)
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Issued by
State Administration for Market Regulation, China National Standardization Administration
Level / Type
National · Recommended
Issue date
May 23, 2023
Implementation date
December 1, 2023
Scope
GB/T 42756.2-2023 (Cards and security devices for personal identification - Contactless proximity objects - Part 2: Radio frequency power and signal interface) is available as an English-translated PDF.
GB/T 42756.2-2023 — This document specifies the field for providing energy and two-way communication between a proximity coupling device (PCD) and a proximity card or object (PICC): characteristics: This document does not specify methods for generating coupling fields, nor does it specify methods for complying with regulations on electromagnetic radiation and human exposure: This document is applicable to the design, production, application and testing of proximity cards and equipment:
Document preview — GB/T 42756.2-2023
National Standard of the People's Republic of China
- ICS
- 35.240.15
- Classification
- L 70
Issued by: State Administration for Market Regulation, China National Standardization Administration
Contents
- Preface
- Introduction
- 1 Scope1
- 2 Normative references1
- 3 Terms and Definitions1
- 4 Symbols and abbreviations2
- 5 General requirements4
- 5:1 Initial session4
- 5:2 Compliance4
foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents"
drafting:
This document is part 2 of GB/T 42756 "Card and Identification Security Equipment Contactless Proximity Object": GB/T 42756
The following parts have been published:
--- Part 1: Physical characteristics;
--- Part 2: RF power and signal interface;
--- Part 3: Initialization and anti-collision;
--- Part 4: Transmission protocol:
This document is modified to adopt ISO /IEC 14443-2:2020 "Card and Identification Security Equipment Contactless Proximity Object Part 2
Sub: RF Power and Signal Interface":
The technical differences between this document and ISO /IEC 14443-2:2020 and their reasons are as follows:
--- ISO /IEC 14443-1:2018 is replaced by GB/T 42756:1-2023 with normative references, the consistency between the two documents
The degree of stability is modified to adapt to the technical conditions of our country (see 6:2, 8:2:2:2):
--- Replaced ISO /IEC 14443-3:2018 with the normative reference document GB/T 42756:3-2023, one between the two documents
The degree of consistency is equivalent (see Chapter 2):
The following editorial changes have been made to this document:
---Incorporated the content of ISO /IEC 14443-2:2020/Amd1:2021, the outer margins of the terms involved are in vertical
Double lines (||) are marked (see Chapter 4, 6:3, Table 22, 9:1:2, 10:2);
---Incorporated the content of the corrigendum of ISO /IEC 14443-2:2020/Cor1:2021, the outer margins of the terms involved are marked with vertical
Straight double lines (||) are marked (see 8:1:3:3, 8:1:3:4, 9:1:3:2, 9:1:3:3);
---Added the normative reference document ISO /IEC 14443-4, because it is quoted in ISO /IEC 14443-2:2020/Amd1:2021
ISO /IEC 14443-4 (see 6:3):
---In ISO /IEC 14443-2:2020/Cor1:2021, Figure 29~Figure 30 in the original text is changed to Figure 11~Figure 12, so the original Figure 11~
Figure 28 corresponds to Figure 13 to Figure 30 of this document, and the corresponding references are revised at the same time (see Figure 11 to Figure 30, ISO /IEC 14443-4:
Figure 11~Figure 30 of:2018);
---In ISO /IEC 14443-2:2020/Cor1:2021, the title of 9:1:3:2 of the original text is changed to "bit rate 3fc/4 and 3fc/2
Bit representation and coding of ", add 9:1:3:3 "Bit representation and coding of bit rate fc and 2fc":
Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents:
Introduction
Contactless card standards include ISO /IEC 10536 (tightly coupled card), GB/T 42756 (proximity card) and GB/T 22351 (proximity card)
card) and other types: These types of equipment are designed to operate at very close, close and long distances respectively from the associated coupling device:
GB/T 42756 "Card and Identity Recognition Security Equipment Contactless Proximity Object" stipulates that identification cards and identification cards in accordance with GB/T 14916
Comply with the technical requirements for flexible thin cards in GB/T 28177:1, and use these cards for information exchange: This technology provides standard card
Forms other than formats provide the possibility to approach type objects: In addition, it does not exclude the use of other technologies on the card, such as GB/T 42756:1 attached
Techniques in Record A:
GB/T 42756 consists of four parts:
--- Part 1: Physical properties: The purpose is to specify the physical characteristics of proximity objects:
--- Part 2: RF power and signal interface: The purpose is to specify the Proximity Coupling Device (PCD) and the Proximity Card or Object
(PICC) provides the characteristics of the field of energy and two-way communication:
--- Part 3: Initialization and anti-collision: The purpose is to specify requirements for contactless proximity object initialization and anti-collision:
--- Part 4: Transmission protocol: The purpose is to establish a half-duplex block transfer protocol required for a contactless environment and to specify activation and deactivation
A step of:
Card and ID Security Devices
Contactless Proximity Objects
Part 2: RF power and signal interface
1 Scope
This document specifies the field for providing energy and two-way communication between a proximity coupling device (PCD) and a proximity card or object (PICC):
characteristics: This document does not specify methods for generating coupling fields, nor does it specify methods for complying with regulations on electromagnetic radiation and human exposure:
This document is applicable to the design, production, application and testing of proximity cards and equipment:
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document:
GB/T 42756:1-2023 Cards and identification security equipment Contactless proximity objects Part 1: Physical characteristics
(ISO /IEC 14443-1:2018, MOD)
GB/T 42756:3-2023 Cards and identification security devices Contactless proximity objects Part 3: Initialization and anti-collision
(SO/IEC 14443-3:2018, IDT)
ISO /IEC 10373-6 Test methods for cards and identification security devices - Part 6: Contactless proximity objects (Cardsand
ISO /IEC 14443-4 Cards and identification security devices Contactless proximity objects Part 4: Transmission protocol (Cardsand
tocol)
Note: GB/T 42756:4-2023 Cards and identification security equipment Contactless proximity objects Part 4: Transmission protocol (ISO /IEC 14443-4:
2018, IDT)
3 Terms and Definitions
The following terms and definitions apply to this document:
3:1
bit duration bitduration
Defines the duration of the logic level, at the end of which a new bit starts:
3:2
A phase shift of 180° results in phase shift keying of two possible phase states:
3:3
Modified Miller coding modifiedMiler
A method of bit encoding in which the logic level within the bit duration (3:1) is represented by the position of the pulse within the bit frame:
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.
Referenced standards
Normative references
GB/T 42756 · IEC 14443 · IEC 10373
Cited by
- GB/T 45498.1-2025Specifications for the social security card one-card-pass of the People's Republic of China — Part 1: Basic specifications
- GB/T 45498.4-2025Specifications for the social security card one-card-pass of the People's Republic of China — Part 4: Terminal specifications
- GB/T 42756.1-2023Cards and security devices for personal identification - Contactless proximity objects - Part 1: Physical characteristics
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Related Standards
GB/T 42756.1-2023 — Cards and security devices for personal identification - Contactless proximity objects - Part 1: Physical characteristics
GB/T 42756.3-2023 — Cards and security devices for personal identification - Contactless proximity objects - Part 3: Initialization and anticollision
GB/T 42756.4-2023 — Cards and security devices for personal identification - Contactless proximity objects - Part 4: Transmission protocol
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GB/T 42756.2-2023
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